Dr Ricardo Ramalho
(e/fe)
Uwch Ddarlithydd mewn Peryglon Geo-Amgylcheddol
- Ar gael fel goruchwyliwr ôl-raddedig
Trosolwyg
Rwy'n ddaearegwr y mae ei ymchwil yn canolbwyntio ar geodynameg a pheryglon llosgfynyddoedd ynysoedd y cefnforoedd.
Llosgfynyddoedd ynysoedd y cefnfor yw rhai o'r strwythurau mwyaf amlwg a sy'n ffurfio'n gyflym ar y Ddaear, ac eto mae eu tarddiad yn dal i fod yn enigmatig iawn gan na ellir eu hesbonio o hyd gan tectoneg plât confensiynol. Maent hefyd yn cynnwys un o'r tirweddau mwyaf deinamig yn ein planed, gan fod yn ffynhonnell geoberyglon dinistriol iawn fel ffrwydradau paroxysmal, cwympiadau ochrol enfawr, a megatsunamis. Felly mae ymchwil ar losgfynyddoedd ynysoedd y môr yn un o'r ffiniau olaf yng nghyd-ddealltwriaeth deinameg fewnol ein Planed ac mae'n sylfaenol i wledydd sydd â sofraniaeth dros archipelagos folcanig, fel y DU.
Fy nod canolog yw deall sut mae llosgfynyddoedd ynys yn tyfu ac yn pydru, ar wahanol adegau a graddfeydd gofodol, a sut mae'r esblygiad hwnnw'n adlewyrchu'r rhyngweithio cyfannol rhwng prosesau wyneb a mecanweithiau daear dwfn.
Mae fy ngwaith hefyd yn canolbwyntio ar ymchwilio i'r perygl posibl a achosir gan losgfynyddoedd ynys, gan gynnwys ar echdoriadau folcanig (eu dynameg, effeithiau ac amlder), tirlithriadau (mecanweithiau ac effeithiau sbardun), tsunamis (cynhyrchu, lluosogi ac effaith), lahars (mecanweithiau ac effeithiau sbardun), stormydd (amlder ac effeithiau), ac erydiad arfordirol (fel swyddogaeth o ystod o wahanol ffactorau).
Felly, mae fy ymchwil yn eang iawn, gan bontio meysydd daeareg folcanig, tectoneg platiau a daeareg strwythurol, geomorffoleg, stratigraffeg, gwaddodeg, a pheryglon naturiol.
Mae fy ngwaith yn seiliedig ar faes (ar y tir ac ar y môr), ond mae'n ymestyn ac yn dibynnu ar ystod o dechnegau llafurus a modelu ategol eraill, gan ei wneud yn rhyngddisgyblaethol ac yn gydweithredol iawn ei natur.
Allweddeiriau:
- Llosgfynyddoedd ynysoedd y cefnfor
- Geodynameg
- Mannau Poeth
- Esblygiad tirwedd
- Tirlithriadau
- Tsunamis
- Ffrwydradau folcanig
Cyhoeddiad
2024
- Reeb, A., Rebelo, A. C., Ramalho, R. S., Madeira, J. and Rasser, M. W. 2024. Systematics and paleobiogeography of Quaternary corals from Cabo Verde Archipelago. Quaternary Research 121, pp. 94-108. (10.1017/qua.2024.20)
- Gómez Pazo, A. et al. 2024. Dinámica de bloques mediante sensores RFID en la Fajã da Caldeira de Santo Cristo (Ilha de São Jorge, Archipiélago de las Azores). Presented at: XII Coastal Geomorphology Conference, Valencia, Spain, 25-27 September 2024Proceedings of the XII Coastal Geomorphology Conference. pp. 159-164., (10.4995/GEOLIT24.2024.18573)
- Schlaphorst, D., Silveira, G., Ramalho, R. S., Gonzalez, P. J. and Antón, R. 2024. Corrigendum: Dynamic subsurface changes on El Hierro and La Palma during volcanic unrest revealed by temporal variations in seismic anisotropy patterns. Frontiers in Earth Science 12, article number: 1448102. (10.3389/feart.2024.1448102)
- Fontiela, J., Silveira, G., Dias, N. A., Pimentel, A., Ramalho, R. S. and Sigloch, K. 2024. Editorial: Challenges in seismology to our understanding of volcanic islands and their magmatic unrest. Frontiers in Earth Science 12, article number: 1431193. (10.3389/feart.2024.1431193)
- Kwasnitschka, T., Hansteen, T. H., Ramalho, R. S., Devey, C. W., Klügel, A., Samrock, L. K. and Wartho, J. 2024. Geomorphology and age constraints of seamounts in the Cabo Verde Archipelago, and their relationship to island ages and geodynamic evolution. Geochemistry, Geophysics, Geosystems 25(3), article number: e2023GC011071. (10.1029/2023gc011071)
- Schlaphorst, D., Silveira, G., Ramalho, R. S., González, P. J. and Antón, R. 2024. Dynamic subsurface changes on El Hierro and La Palma during volcanic unrest revealed by temporal variations in seismic anisotropy patterns. Frontiers in Earth Science 11, article number: 1299338. (10.3389/feart.2023.1299338)
2023
- Melo, C. S. et al. 2023. Palaeobiogeography of NE Atlantic archipelagos during the Last Interglacial (MIS 5e): a molluscan approach to the conundrum of Macaronesia as a marine biogeographic unit. Quaternary Science Reviews 319, article number: 108313. (10.1016/j.quascirev.2023.108313)
- DeVitre, C. L. et al. 2023. Oceanic intraplate explosive eruptions fed directly from the mantle. Proceedings of the National Academy of Sciences 120(33), article number: e2302093120. (10.1073/pnas.2302093120)
- Andrade, M., Ramalho, R., Pimentel, A., Kutterolf, S. and Hernández, A. 2023. The recent volcanism of Flores Island (Azores), Part II: Stratigraphy and eruptive history of the Comprida Volcanic System. Journal of Volcanology and Geothermal Research 438, article number: 107806. (10.1016/j.jvolgeores.2023.107806)
2022
- Andrade, M., Pimentel, A., Ramalho, R., Kutterolf, S. and Hernández, A. 2022. The recent volcanism of Flores Island (Azores): Stratigraphy and eruptive history of Funda Volcanic System. Journal of Volcanology and Geothermal Research 432, article number: 107706. (10.1016/j.jvolgeores.2022.107706)
- Carvalho, J., Silveira, G., Dumont, S. and Ramalho, R. 2022. 3D-ambient noise surface wave tomography of Fogo volcano, Cape Verde. Journal of Volcanology and Geothermal Research 432, article number: 107702. (10.1016/j.jvolgeores.2022.107702)
- Carvalho, J., Silveira, G., Kiselev, S., Custódio, S., Ramalho, R., Stutzmann, E. and Schimmel, M. 2022. Crustal and uppermost mantle structure of Cape Verde from ambient noise tomography. Geophysical Journal International 231(2), pp. 1421-1433. (10.1093/gji/ggac254)
- Omira, R. et al. 2022. Global Tonga tsunami explained by a fast-moving atmospheric source. Nature 609, pp. 734-740. (10.1038/s41586-022-04926-4)
- Pereira, R., Mata, J., Ramalho, R. S., Rosas, F. M., Silva, B., Represas, P. and Escada, C. 2022. Nature, timing and magnitude of buried Late Cretaceous magmatism on the central West Iberian Margin. Basin Research 34(2), pp. 771-796. (10.1111/bre.12640)
- Omira, R., Baptista, M. A., Quartau, R., Ramalho, R. S., Kim, J., Ramalho, I. and Rodrigues, A. 2022. How hazardous are tsunamis triggered by small-scale mass-wasting events on volcanic islands? New insights from Madeira – NE Atlantic. Earth and Planetary Science Letters 578, article number: 117333. (10.1016/j.epsl.2021.117333)
2021
- Rebelo, A. C. et al. 2021. Pleistocene coralline algal buildups on a mid-ocean rocky shore – insights into the MIS 5e record of the Azores. Palaeogeography, Palaeoclimatology, Palaeoecology 579, article number: 110598. (10.1016/j.palaeo.2021.110598)
- Andrade, M. et al. 2021. Unraveling the holocene eruptive history of Flores Island (Azores) through the analysis of lacustrine sedimentary records. Frontiers in Earth Science 9, article number: 738178. (10.3389/feart.2021.738178)
- Dávid, ?. et al. 2021. Diverse bioerosion structures in lower Pliocene deposits from a volcanic oceanic island: Baía de Nossa Senhora section, Santa Maria Island, Azores (central North Atlantic). Palaeogeography, Palaeoclimatology, Palaeoecology 569, article number: 110284. (10.1016/j.palaeo.2021.110284)
- Costa, P. J. M., Dawson, S., Ramalho, R. S., Engel, M., Dourado, F., Bosnic, I. and Andrade, C. 2021. A review on onshore tsunami deposits along the Atlantic coasts. Earth-Science Reviews 212, article number: 103441. (10.1016/j.earscirev.2020.103441)
- Hyžný, M. et al. 2021. Pliocene and late Pleistocene (MIS 5e) decapod crustaceans from Santa Maria Island (Azores Archipelago: Central Atlantic): systematics, palaeoecology and palaeobiogeography. Journal of Quaternary Science 36(1), pp. 91-109. (10.1002/jqs.3261)
2020
- Uchman, A. et al. 2020. Neogene marine sediments and biota encapsulated between lava flows on Santa Maria Island (Azores, north-east Atlantic): an interplay between sedimentary, erosional and volcanic processes. Sedimentology 67(7), pp. 3595-3618. (10.1111/sed.12763)
- Zhao, Z., Mitchell, N. C., Quartau, R., Ramalho, R. S. and Rusu, L. 2020. Coastal erosion rates of lava deltas around oceanic islands. Geomorphology 370, article number: 107410. (10.1016/j.geomorph.2020.107410)
- Johnson, M. E., Ramalho, R. and Silva, C. M. 2020. Storm-related rhodolith deposits from the upper pleistocene and recycled coastal holocene on Sal Island (cabo verde archipelago). Geosciences 10(11), article number: 419. (10.3390/geosciences10110419)
- Ricchi, A., Quartau, R., Ramalho, R. S., Romagnoli, C., Casalbore, D. and Zhao, Z. 2020. Imprints of volcanic, erosional, depositional, tectonic and mass-wasting processes in the morphology of Santa Maria insular shelf (Azores). Marine Geology 424, article number: 106163. (10.1016/j.margeo.2020.106163)
- Madeira, J., Ramalho, R. S., Hoffmann, D. L., Mata, J. and Moreira, M. 2020. A geological record of multiple Pleistocene tsunami inundations in an oceanic island: the case of Maio, Cape Verde. Sedimentology 67(3), pp. 1529-1552. (10.1111/sed.12612)
- Ramalho, R. S., Quartau, R., Hóskuldsson, ?., Madeira, J., da Cruz, J. V. and Rodrigues, A. 2020. Evidence for late Pleistocene volcanism at Santa Maria Island, Azores?. Journal of Volcanology and Geothermal Research 394, article number: 106829. (10.1016/j.jvolgeores.2020.106829)
- Pimentel, A., Ramalho, R. S., Becerril, L., Larrea, P. and Brown, R. J. 2020. Editorial: Ocean island volcanoes: genesis, evolution and impact. Frontiers in Earth Science 8, article number: 82. (10.3389/feart.2020.00082)
- Barrett, R. et al. 2020. Revisiting the tsunamigenic volcanic flank collapse of fogo island in the cape verdes, offshore West Africa. Geological Society Special Publications 500(1), pp. 13-26. (10.1144/SP500-2019-187)
2019
- Santos, R., Quartau, R., da Silveira, A., Ramalho, R. and Rodrigues, A. 2019. Gravitational, erosional, sedimentary and volcanic processes on the submarine environment of Selvagens Islands (Madeira Archipelago, Portugal). Marine Geology 415, article number: 105945. (10.1016/j.margeo.2019.05.004)
- Santos, R., Quartau, R., da Silveira, A. B., Ramalho, R. and Rodrigues, A. 2019. Corrigendum to “Gravitational, erosional, sedimentary and volcanic processes on the submarine environment of Selvagens Islands (Madeira Archipelago, Portugal)” (Marine Geology (2019) 415, (S0025322719300441), (10.1016/j.margeo.2019.05.004)). Marine Geology 417, article number: 106010. (10.1016/j.margeo.2019.106010)
- Ávila, S. P. et al. 2019. Towards a ‘Sea-Level Sensitive’ dynamic model. Biological Reviews 94(3), pp. 1116-1142. (10.1111/brv.12492)
- Rebelo, A. C., Rasser, M., Johnson, M., Ramalho, R., Quartau, R. and Ávila, S. P. 2019. Formation, transport and deposition of rhodoliths on reefless insular shelves of the Azores volcanic Archipelago. Presented at: 34th IAS Meeting of Sedimentology, Rome, Italy, 10-13 September 2019.
- Mitchell, N., Zhao, Z., Quartau, R. and Ramalho, R. 2019. Coastal erosion rates of lava deltas around oceanic islands. Presented at: EGU General Assembly 2019, Vienna, Austria, 7-12 April 2019.
- Rebelo, A., Rasser, M., Johnson, M., Ramalho, R. and Quartau, R. 2019. Pleistocene coralline algal frameworks from the Azores (NE Atlantic). Presented at: 12th International Symposium on Fossil Algae, Lucknow, India, 16-24 September 2019.
2018
- Ramalho, R., Quartau, R., Madeira, J. and Rebelo, A. C. 2018. The geology of Formigas Islets and its significance to our comprehension of the Terceira Rift in the Azores Triple Junction. Presented at: 2018 American Geophysical Union Fall Meeting, Washington DC, United States, 10-14 December 2018.
- Ricchi, A. et al. 2018. Marine terrace development on reefless volcanic islands. Marine Geology 406, pp. 42-56. (10.1016/j.margeo.2018.09.002)
- Quartau, R., Trenhaile, A. S., Ramalho, R. S. and Mitchell, N. C. 2018. The role of subsidence in shelf widening around ocean island volcanoes. Earth and Planetary Science Letters 498, pp. 408--417. (10.1016/j.epsl.2018.07.007)
- Uchman, A. et al. 2018. Feeding traces of recent ray fish and occurrences of the trace fossil piscichnus waitemata from the pliocene of santa maria Island, azores (Northeast Atlantic). Palaios 33(8), pp. 361--375. (10.2110/palo.2018.027)
- Melo, C. S. et al. 2018. Genesis and morphological evolution of coastal talus-platforms (fajãs) with lagoons: The case study of the newly-formed Fajã dos Milagres (Corvo Island, Azores). Geomorphology 310, pp. 138-152. (10.1016/j.geomorph.2018.03.006)
- Johnson, M. E., Baarli, B. G., Cachão, M., Mayoral, E., Ramalho, R. S., Santos, A. and da Silvab, C. M. 2018. On the rise and fall of oceanic islands. Earth-Science Reviews 180, pp. 17-36. (10.1016/j.earscirev.2018.03.008)
- Spieker, K., Rondenay, S., Ramalho, R., Thomas, C. and Helffrich, G. 2018. Constraints on the structure of the crust and lithosphere beneath the Azores Islands from teleseismic receiver functions. Geophysical Journal International 213(2), pp. 824--835. (10.1093/gji/ggy022)
- Melo, C. S., Ramalho, R. and Borges, P. A. V. 2018. Fajã dos Milagres: o desvendar da formação de fajãs detríticas com sistemas lagunares. University of the Azores Department of Agricultural Sciences Newsletter
- Avila, S. P., Ramalho, R. S., Habermann, J. M. and Titschack, J. 2018. The marine fossil record at Santa Maria Island (Azores). In: Kueppers, U. and Beier, C. eds. Volcanoes of the Azores. Springer, pp. 155-196., (10.1007/978-3-642-32226-6_9)
- Quartau, R. et al. 2018. Gravitational, erosional and depositional processes on volcanic ocean islands: Insights from the submarine morphology of Madeira Archipelago. Earth and Planetary Science Letters 482, pp. 288--299. (10.1016/j.epsl.2017.11.003)
- Paris, R. et al. 2018. Mega-tsunami conglomerates and flank collapses of ocean island volcanoes. Marine Geology 395, pp. 168-187. (10.1016/j.margeo.2017.10.004)
- Melo, C. et al. 2018. Genesis and morphological evolution of coastal talus-platforms (fajãs) with lagoons: the case study of the recently-formed Fajã dos Milagres (Corvo Island, Azores). Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Quartau, R., Trenhaile, A., Ramalho, R. and Mitchell, N. 2018. The role of subsidence in shelf widening around ocean island volcanoes: Insights from observed morphology and modeling. Presented at: 2018 American Geophysical Union Fall Meeting, Washington DC, United States, 10-14 December 2018.
- Ramalho, R. et al. 2018. Emergence and evolution of Santa Maria Island. Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Ramalho, R. et al. 2018. The geological evolution of Santa Maria Island in the Azores Archipelago: a review. Presented at: 10th Portuguese Nacional Geological Congress.
- Ramalho, R., Helffrich, G., Thomas, C., Quartau, R. and Madeira, J. 2018. The geological evolution of Flores island in the Azores Archipelago: a product of multi-stage volcanism and a complex history of vertical movements. Presented at: 10th Portuguese Nacional Geological Congress.
- Ramalho, R., Quartau, R., Ricchi, A., Madeira, J. and Cruz, J. 2018. Evidence for late Pleistocene volcanism at Santa Maria Island, Azores?. Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Ricchi, A., Quartau, R., Ramalho, R., Romagnoli, C. and Casalbore, D. 2018. Santa Maria Island’s (Azores Archipelago) geological evolution: new insights from high-resolution marine geophysical data.. Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
2017
- Uchman, A. et al. 2017. The trace fossil Diopatrichnus santamariensis nov. isp. – a shell armored tube from Pliocene sediments of Santa Maria Island, Azores (NE Atlantic Ocean). Geobios 50(5-6), pp. 459-469. (10.1016/j.geobios.2017.09.002)
- Mata, J. et al. 2017. The 2014--15 eruption and the short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity. Lithos 288-28, pp. 91-107. (10.1016/j.lithos.2017.07.001)
- Ávila, S. P. et al. 2017. Glacial-age tsunami deposits prove the tropical-ward geographical range expansion of marine cold-water species. Presented at: 5th International Tsunami Field Symposium 2017, Lisbon, Portugal, 3-7 September 2017.
- Ramalho, R. S., Madeira, J., Costa, P., Freitas, M. C. and Andrade, C. 2017. Fields of stranded megaclasts as potential evidence for tsunami inundation in Sal Island (Cape Verde). Presented at: 5th International Tsunami Field Symposium 2017, Lisbon, Portugal, 3-7 September 2017.
- Ramalho, R. S., Madeira, J., Hipólito, A. and Quartau, R. 2017. Evidence for megatsunami inundation on SE Santiago Island (Cape Verde) - the field of megaclasts of Ponta do Lobo. Presented at: 5th International Tsunami Field Symposium 2017, Lisbon, Portugal, 3-7 September 2017.
- Berndt, T., Ramalho, R. S., Valdez-Grijalva, M. A. and Muxworthy, A. R. 2017. Paleomagnetic field reconstruction from mixtures of titanomagnetites. Earth and Planetary Science Letters 465, pp. 70-81. (http://dx.doi.org/10.1016/j.epsl.2017.02.033)
- Johnson, M. E., Uchman, A., Costa, P. J. M., Ramalho, R. S. and Avila, S. P. 2017. Intense hurricane transports sand onshore: Example from the Pliocene Malbusca section on Santa Maria Island (Azores, Portugal). Marine Geology 385, pp. 244-249. (10.1016/j.margeo.2017.02.002)
- Johnson, M. E. et al. 2017. Taphonomic range and sedimentary dynamics of modern and fossil rhodolith beds: Macaronesian realm (North Atlantic ocean). In: Riosmena-Rodríguez, R., Nelson, W. and Aguirre, J. eds. Rhodolith/Maërl Beds: A Global Perspective., Vol. 15. Springer, pp. 221-261., (10.1007/978-3-319-29315-8_9)
2016
- Johnson, M. E., Baarli, B. G., da Silva, C. M., Cachão, M., Ramalho, R. S., Santos, A. and Mayoral, E. J. 2016. Recent rhodolith deposits stranded on the windward shores of Maio (Cape Verde Islands). Journal of Coastal Research 32(4), pp. 735-743. (10.2112/JCOASTRES-D-15-00211.1)
- Rebelo, A. C. et al. 2016. Rocking around a volcanic island shelf. Facies 62(3), article number: 22. (10.1007/s10347-016-0473-9)
- Ramalho, J. R., Santos, R. and Beynon, H. 2016. Huw Beynon: marxismo e sociologia. Sociologia & Antropologia 6(1) (10.1590/2238-38752016v611)
- Uchman, A., Johnson, M. E., Rebelo, A. C., Melo, C., Caordeiro, R., Ramalho, R. S. and Ávila, S. P. 2016. Vertically-oriented trace fossil Macaronichnus segregatis from Neogene of Santa Maria Island (Azores; NE Atlantic) records vertical fluctuations of the coastal groundwater mixing zone on a small oceanic island. Geobios 49(3), pp. 229-241. (10.1016/j.geobios.2016.01.016)
2015
- Ramalho, R. S. et al. 2015. Hazard potential of volcanic flank collapses raised by new megatsunami evidence. Science Advances 1(9), article number: e1500456. (10.1126/sciadv.1500456)
- Santos, A. et al. 2015. Role of environmental change in rock-boring echinoid trace fossils. Palaeogeography, Palaeoclimatology, Palaeoecology 432, pp. 1-14. (10.1016/j.palaeo.2015.04.029)
- Eisele, S., Freundt, A., Kutterolf, S., Ramalho, R. S., Kwasnitschka, T., Wang, K. L. and Hemming, S. R. 2015. Stratigraphy of the Pleistocene, phonolitic Cão Grande formation on Santo Antão, Cape Verde. Journal of Volcanology and Geothermal Research 301, pp. 204-220. (10.1016/j.jvolgeores.2015.03.012)
- Ávila, S. P. et al. 2015. Palaeoecology, taphonomy, and preservation of a lower Pliocene shell bed (coquina) from a volcanic oceanic island (Santa Maria Island, Azores). Palaeogeography, Palaeoclimatology, Palaeoecology 430, pp. 57-73. (10.1016/j.palaeo.2015.04.015)
- Ávila, S. P. et al. 2015. The Palaeontological heritage of Santa Maria Island (Azores: NE Atlantic): a re-evaluation of geosites in GeoPark Azores and their use in Geotourism. Geoheritage 8, pp. 155-171. (10.1007/s12371-015-0148-x)
- Ávila, S. P. et al. 2015. A review of the MIS 5e highstand deposits from Santa Maria Island (Azores, NE Atlantic): palaeobiodiversity, palaeoecology and palaeobiogeography. Quaternary Science Reviews 114, pp. 126-148. (10.1016/j.quascirev.2015.02.012)
- Ramalho, R. S. et al. 2015. The emergence of volcanic oceanic islands on a slow-moving plate: the example of Madeira Island, NE Atlantic. Geochemistry, Geophysics, Geosystems 16(2), pp. 522-537. (10.1002/2014GC005657)
2014
- Jefferson, A. J., Ferrier, K. L., Perron, J. T. and Ramalho, R. 2014. Controls on the hydrological landscape evolution of shield volcanoes and volcanic ocean islands. In: Harpp, K. S. et al. eds. The Galápagos: A Natural Laboratory for the Earth Sciences. Geophysical Monograph Series AGU, pp. 185-213., (10.1002/9781118852538.ch10)
- Jefferson, A. J., Ferrier, K. L., Perron, J. T. and Ramalho, R. 2014. Controls on the hydrological and topographic evolution of shield volcanoes and volcanic ocean islands. In: Harpp, K. S. et al. eds. The Galápagos: A Natural Laboratory for the Earth Sciences. Wiley-Blackwell, pp. 185-213., (10.1002/9781118852538.ch10)
- Johnson, M. E., Ramalho, R. S., Baarli, B. G., Cachao, M., da Silva, C. M., Mayoral, E. J. and Santos, A. 2014. Miocene-Pliocene rocky shores on Sao Nicolau (Cape Verde Islands): contrasting windward and leeward biofacies on a volcanically active oceanic island. Palaeogeography, Palaeoclimatology, Palaeoecology 395, pp. 131-143. (10.1016/j.palaeo.2013.12.028)
2013
- Johnson, M. E. et al. 2013. Coastal dunes with high content of rhodolith (coralline red algae) bioclasts: Pleistocene formations on Maio and Sao Nicolau in the Cape Verde archipelago. Aeolian Research 8, pp. 1-9. (10.1016/j.aeolia.2012.10.008)
- Ramalho, R. S., Quartau, R., Trenhaile, A. S., Mitchell, N. C., Woodroffe, C. D. and Avila, S. P. 2013. Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production. Earth-Science Reviews 127, pp. 140-170. (10.1016/j.earscirev.2013.10.007)
- Meireles, R. P., Quartau, R., Ramalho, R. S., Rebelo, A. C., Madeira, J., Zanon, V. and Avila, S. P. 2013. Depositional processes on oceanic island shelves - Evidence from storm-generated Neogene deposits from the mid-North Atlantic. Sedimentology 60(7), pp. 1769-1785. (10.1111/sed.12055)
- Mayoral, E. et al. 2013. Ichnology in oceanic islands, case studies from the Cape Verde Archipelago. Palaeogeography Palaeoclimatology Palaeoecology 381, pp. 47-66. (10.1016/j.palaeo.2013.04.014)
2012
- Avila, S. P., Ramalho, R. and Vullo, R. 2012. Systematics, palaeoecology and palaeobiogeography of the Neogene fossil sharks from the Azores (Northeast Atlantic). Annales De Paleontologie 98(3), pp. 167-189. (10.1016/j.annpal.2012.04.001)
- Johnson, M. E. et al. 2012. Rhodoliths, uniformitarianism, and Darwin: Pleistocene and Recent carbonate deposits in the Cape Verde and Canary archipelagos. Palaeogeography Palaeoclimatology Palaeoecology 329, pp. 83-100. (10.1016/j.palaeo.2012.02.019)
2011
- Ramalho, R. A. S. and Ramalho, R. A. S. 2011. Dating of Sea-Level Palaeo-Markers. In: Building the Cape Verde Islands. Springer Theses-Recognizing Outstanding PhD Research Springer, pp. 139-176., (10.1007/978-3-642-19103-9_6)
- Ramalho, R. A. S. and Ramalho, R. A. S. 2011. Constraining the Cape Verde Swell Using Numerical Models. In: Building the Cape Verde Islands. Springer Theses-Recognizing Outstanding PhD Research Springer, pp. 27-46., (10.1007/978-3-642-19103-9_3)
- Ramalho, R. 2011. Building the Cape Verde Islands. Springer Theses. Springer. (10.1007/978-3-642-19103-9)
2010
- Ramalho, R., Helffrich, G., Cosca, M., Vance, D., Hoffmann, D. and Schmidt, D. N. 2010. Episodic swell growth inferred from variable uplift of the Cape Verde hotspot islands. Nature Geoscience 3(11), pp. 774-777. (10.1038/geo982)
- Ávila, S. et al. 2010. Os fósseis de Santa Maria (Açores) : a jazida da Prainha. Observatório Vulcanológico e Geotérmico dos Açores (OVGA); Vol. 45. Vitor Hugo Forjaz (OVGA).
- Ramalho, R. S., Helffrich, G., Cosca, M., Vance, D., Hoffmann, D. and Schmidt, D. N. 2010. Vertical movements of ocean island volcanoes: Insights from a stationary plate environment. Marine Geology 275(1-4), pp. 84-95. (10.1016/j.margeo.2010.04.009)
- Madeira, J., Mata, J., Mourao, C., da Silveira, A. B., Martins, S., Ramalho, R. and Hoffmann, D. L. 2010. Volcano-stratigraphic and structural evolution of Brava Island (Cape Verde) based on Ar-40/Ar-39, U-Th and field constraints. Journal of Volcanology and Geothermal Research 196(3-4), pp. 219-235. (10.1016/j.jvolgeores.2010.07.010)
- Ramalho, R., Helffrich, G., Schmidt, D. N. and Vance, D. 2010. Tracers of uplift and subsidence in the Cape Verde archipelago. Journal of the Geological Society 167(3), pp. 519-538. (10.1144/0016-76492009-056)
2005
- Ramalho, R., Madeira, J., E.}, {., Silveira, A., Prada, S. and F.}, {. 2005. Tectónica da Ponta de São Lourenço, Madeira Island. Cadernos do Laboratorio Xeoloxico de Laxe(30), pp. 223-234.
Articles
- Reeb, A., Rebelo, A. C., Ramalho, R. S., Madeira, J. and Rasser, M. W. 2024. Systematics and paleobiogeography of Quaternary corals from Cabo Verde Archipelago. Quaternary Research 121, pp. 94-108. (10.1017/qua.2024.20)
- Schlaphorst, D., Silveira, G., Ramalho, R. S., Gonzalez, P. J. and Antón, R. 2024. Corrigendum: Dynamic subsurface changes on El Hierro and La Palma during volcanic unrest revealed by temporal variations in seismic anisotropy patterns. Frontiers in Earth Science 12, article number: 1448102. (10.3389/feart.2024.1448102)
- Fontiela, J., Silveira, G., Dias, N. A., Pimentel, A., Ramalho, R. S. and Sigloch, K. 2024. Editorial: Challenges in seismology to our understanding of volcanic islands and their magmatic unrest. Frontiers in Earth Science 12, article number: 1431193. (10.3389/feart.2024.1431193)
- Kwasnitschka, T., Hansteen, T. H., Ramalho, R. S., Devey, C. W., Klügel, A., Samrock, L. K. and Wartho, J. 2024. Geomorphology and age constraints of seamounts in the Cabo Verde Archipelago, and their relationship to island ages and geodynamic evolution. Geochemistry, Geophysics, Geosystems 25(3), article number: e2023GC011071. (10.1029/2023gc011071)
- Schlaphorst, D., Silveira, G., Ramalho, R. S., González, P. J. and Antón, R. 2024. Dynamic subsurface changes on El Hierro and La Palma during volcanic unrest revealed by temporal variations in seismic anisotropy patterns. Frontiers in Earth Science 11, article number: 1299338. (10.3389/feart.2023.1299338)
- Melo, C. S. et al. 2023. Palaeobiogeography of NE Atlantic archipelagos during the Last Interglacial (MIS 5e): a molluscan approach to the conundrum of Macaronesia as a marine biogeographic unit. Quaternary Science Reviews 319, article number: 108313. (10.1016/j.quascirev.2023.108313)
- DeVitre, C. L. et al. 2023. Oceanic intraplate explosive eruptions fed directly from the mantle. Proceedings of the National Academy of Sciences 120(33), article number: e2302093120. (10.1073/pnas.2302093120)
- Andrade, M., Ramalho, R., Pimentel, A., Kutterolf, S. and Hernández, A. 2023. The recent volcanism of Flores Island (Azores), Part II: Stratigraphy and eruptive history of the Comprida Volcanic System. Journal of Volcanology and Geothermal Research 438, article number: 107806. (10.1016/j.jvolgeores.2023.107806)
- Andrade, M., Pimentel, A., Ramalho, R., Kutterolf, S. and Hernández, A. 2022. The recent volcanism of Flores Island (Azores): Stratigraphy and eruptive history of Funda Volcanic System. Journal of Volcanology and Geothermal Research 432, article number: 107706. (10.1016/j.jvolgeores.2022.107706)
- Carvalho, J., Silveira, G., Dumont, S. and Ramalho, R. 2022. 3D-ambient noise surface wave tomography of Fogo volcano, Cape Verde. Journal of Volcanology and Geothermal Research 432, article number: 107702. (10.1016/j.jvolgeores.2022.107702)
- Carvalho, J., Silveira, G., Kiselev, S., Custódio, S., Ramalho, R., Stutzmann, E. and Schimmel, M. 2022. Crustal and uppermost mantle structure of Cape Verde from ambient noise tomography. Geophysical Journal International 231(2), pp. 1421-1433. (10.1093/gji/ggac254)
- Omira, R. et al. 2022. Global Tonga tsunami explained by a fast-moving atmospheric source. Nature 609, pp. 734-740. (10.1038/s41586-022-04926-4)
- Pereira, R., Mata, J., Ramalho, R. S., Rosas, F. M., Silva, B., Represas, P. and Escada, C. 2022. Nature, timing and magnitude of buried Late Cretaceous magmatism on the central West Iberian Margin. Basin Research 34(2), pp. 771-796. (10.1111/bre.12640)
- Omira, R., Baptista, M. A., Quartau, R., Ramalho, R. S., Kim, J., Ramalho, I. and Rodrigues, A. 2022. How hazardous are tsunamis triggered by small-scale mass-wasting events on volcanic islands? New insights from Madeira – NE Atlantic. Earth and Planetary Science Letters 578, article number: 117333. (10.1016/j.epsl.2021.117333)
- Rebelo, A. C. et al. 2021. Pleistocene coralline algal buildups on a mid-ocean rocky shore – insights into the MIS 5e record of the Azores. Palaeogeography, Palaeoclimatology, Palaeoecology 579, article number: 110598. (10.1016/j.palaeo.2021.110598)
- Andrade, M. et al. 2021. Unraveling the holocene eruptive history of Flores Island (Azores) through the analysis of lacustrine sedimentary records. Frontiers in Earth Science 9, article number: 738178. (10.3389/feart.2021.738178)
- Dávid, ?. et al. 2021. Diverse bioerosion structures in lower Pliocene deposits from a volcanic oceanic island: Baía de Nossa Senhora section, Santa Maria Island, Azores (central North Atlantic). Palaeogeography, Palaeoclimatology, Palaeoecology 569, article number: 110284. (10.1016/j.palaeo.2021.110284)
- Costa, P. J. M., Dawson, S., Ramalho, R. S., Engel, M., Dourado, F., Bosnic, I. and Andrade, C. 2021. A review on onshore tsunami deposits along the Atlantic coasts. Earth-Science Reviews 212, article number: 103441. (10.1016/j.earscirev.2020.103441)
- Hyžný, M. et al. 2021. Pliocene and late Pleistocene (MIS 5e) decapod crustaceans from Santa Maria Island (Azores Archipelago: Central Atlantic): systematics, palaeoecology and palaeobiogeography. Journal of Quaternary Science 36(1), pp. 91-109. (10.1002/jqs.3261)
- Uchman, A. et al. 2020. Neogene marine sediments and biota encapsulated between lava flows on Santa Maria Island (Azores, north-east Atlantic): an interplay between sedimentary, erosional and volcanic processes. Sedimentology 67(7), pp. 3595-3618. (10.1111/sed.12763)
- Zhao, Z., Mitchell, N. C., Quartau, R., Ramalho, R. S. and Rusu, L. 2020. Coastal erosion rates of lava deltas around oceanic islands. Geomorphology 370, article number: 107410. (10.1016/j.geomorph.2020.107410)
- Johnson, M. E., Ramalho, R. and Silva, C. M. 2020. Storm-related rhodolith deposits from the upper pleistocene and recycled coastal holocene on Sal Island (cabo verde archipelago). Geosciences 10(11), article number: 419. (10.3390/geosciences10110419)
- Ricchi, A., Quartau, R., Ramalho, R. S., Romagnoli, C., Casalbore, D. and Zhao, Z. 2020. Imprints of volcanic, erosional, depositional, tectonic and mass-wasting processes in the morphology of Santa Maria insular shelf (Azores). Marine Geology 424, article number: 106163. (10.1016/j.margeo.2020.106163)
- Madeira, J., Ramalho, R. S., Hoffmann, D. L., Mata, J. and Moreira, M. 2020. A geological record of multiple Pleistocene tsunami inundations in an oceanic island: the case of Maio, Cape Verde. Sedimentology 67(3), pp. 1529-1552. (10.1111/sed.12612)
- Ramalho, R. S., Quartau, R., Hóskuldsson, ?., Madeira, J., da Cruz, J. V. and Rodrigues, A. 2020. Evidence for late Pleistocene volcanism at Santa Maria Island, Azores?. Journal of Volcanology and Geothermal Research 394, article number: 106829. (10.1016/j.jvolgeores.2020.106829)
- Pimentel, A., Ramalho, R. S., Becerril, L., Larrea, P. and Brown, R. J. 2020. Editorial: Ocean island volcanoes: genesis, evolution and impact. Frontiers in Earth Science 8, article number: 82. (10.3389/feart.2020.00082)
- Barrett, R. et al. 2020. Revisiting the tsunamigenic volcanic flank collapse of fogo island in the cape verdes, offshore West Africa. Geological Society Special Publications 500(1), pp. 13-26. (10.1144/SP500-2019-187)
- Santos, R., Quartau, R., da Silveira, A., Ramalho, R. and Rodrigues, A. 2019. Gravitational, erosional, sedimentary and volcanic processes on the submarine environment of Selvagens Islands (Madeira Archipelago, Portugal). Marine Geology 415, article number: 105945. (10.1016/j.margeo.2019.05.004)
- Santos, R., Quartau, R., da Silveira, A. B., Ramalho, R. and Rodrigues, A. 2019. Corrigendum to “Gravitational, erosional, sedimentary and volcanic processes on the submarine environment of Selvagens Islands (Madeira Archipelago, Portugal)” (Marine Geology (2019) 415, (S0025322719300441), (10.1016/j.margeo.2019.05.004)). Marine Geology 417, article number: 106010. (10.1016/j.margeo.2019.106010)
- Ávila, S. P. et al. 2019. Towards a ‘Sea-Level Sensitive’ dynamic model. Biological Reviews 94(3), pp. 1116-1142. (10.1111/brv.12492)
- Ricchi, A. et al. 2018. Marine terrace development on reefless volcanic islands. Marine Geology 406, pp. 42-56. (10.1016/j.margeo.2018.09.002)
- Quartau, R., Trenhaile, A. S., Ramalho, R. S. and Mitchell, N. C. 2018. The role of subsidence in shelf widening around ocean island volcanoes. Earth and Planetary Science Letters 498, pp. 408--417. (10.1016/j.epsl.2018.07.007)
- Uchman, A. et al. 2018. Feeding traces of recent ray fish and occurrences of the trace fossil piscichnus waitemata from the pliocene of santa maria Island, azores (Northeast Atlantic). Palaios 33(8), pp. 361--375. (10.2110/palo.2018.027)
- Melo, C. S. et al. 2018. Genesis and morphological evolution of coastal talus-platforms (fajãs) with lagoons: The case study of the newly-formed Fajã dos Milagres (Corvo Island, Azores). Geomorphology 310, pp. 138-152. (10.1016/j.geomorph.2018.03.006)
- Johnson, M. E., Baarli, B. G., Cachão, M., Mayoral, E., Ramalho, R. S., Santos, A. and da Silvab, C. M. 2018. On the rise and fall of oceanic islands. Earth-Science Reviews 180, pp. 17-36. (10.1016/j.earscirev.2018.03.008)
- Spieker, K., Rondenay, S., Ramalho, R., Thomas, C. and Helffrich, G. 2018. Constraints on the structure of the crust and lithosphere beneath the Azores Islands from teleseismic receiver functions. Geophysical Journal International 213(2), pp. 824--835. (10.1093/gji/ggy022)
- Melo, C. S., Ramalho, R. and Borges, P. A. V. 2018. Fajã dos Milagres: o desvendar da formação de fajãs detríticas com sistemas lagunares. University of the Azores Department of Agricultural Sciences Newsletter
- Quartau, R. et al. 2018. Gravitational, erosional and depositional processes on volcanic ocean islands: Insights from the submarine morphology of Madeira Archipelago. Earth and Planetary Science Letters 482, pp. 288--299. (10.1016/j.epsl.2017.11.003)
- Paris, R. et al. 2018. Mega-tsunami conglomerates and flank collapses of ocean island volcanoes. Marine Geology 395, pp. 168-187. (10.1016/j.margeo.2017.10.004)
- Uchman, A. et al. 2017. The trace fossil Diopatrichnus santamariensis nov. isp. – a shell armored tube from Pliocene sediments of Santa Maria Island, Azores (NE Atlantic Ocean). Geobios 50(5-6), pp. 459-469. (10.1016/j.geobios.2017.09.002)
- Mata, J. et al. 2017. The 2014--15 eruption and the short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity. Lithos 288-28, pp. 91-107. (10.1016/j.lithos.2017.07.001)
- Berndt, T., Ramalho, R. S., Valdez-Grijalva, M. A. and Muxworthy, A. R. 2017. Paleomagnetic field reconstruction from mixtures of titanomagnetites. Earth and Planetary Science Letters 465, pp. 70-81. (http://dx.doi.org/10.1016/j.epsl.2017.02.033)
- Johnson, M. E., Uchman, A., Costa, P. J. M., Ramalho, R. S. and Avila, S. P. 2017. Intense hurricane transports sand onshore: Example from the Pliocene Malbusca section on Santa Maria Island (Azores, Portugal). Marine Geology 385, pp. 244-249. (10.1016/j.margeo.2017.02.002)
- Johnson, M. E., Baarli, B. G., da Silva, C. M., Cachão, M., Ramalho, R. S., Santos, A. and Mayoral, E. J. 2016. Recent rhodolith deposits stranded on the windward shores of Maio (Cape Verde Islands). Journal of Coastal Research 32(4), pp. 735-743. (10.2112/JCOASTRES-D-15-00211.1)
- Rebelo, A. C. et al. 2016. Rocking around a volcanic island shelf. Facies 62(3), article number: 22. (10.1007/s10347-016-0473-9)
- Ramalho, J. R., Santos, R. and Beynon, H. 2016. Huw Beynon: marxismo e sociologia. Sociologia & Antropologia 6(1) (10.1590/2238-38752016v611)
- Uchman, A., Johnson, M. E., Rebelo, A. C., Melo, C., Caordeiro, R., Ramalho, R. S. and Ávila, S. P. 2016. Vertically-oriented trace fossil Macaronichnus segregatis from Neogene of Santa Maria Island (Azores; NE Atlantic) records vertical fluctuations of the coastal groundwater mixing zone on a small oceanic island. Geobios 49(3), pp. 229-241. (10.1016/j.geobios.2016.01.016)
- Ramalho, R. S. et al. 2015. Hazard potential of volcanic flank collapses raised by new megatsunami evidence. Science Advances 1(9), article number: e1500456. (10.1126/sciadv.1500456)
- Santos, A. et al. 2015. Role of environmental change in rock-boring echinoid trace fossils. Palaeogeography, Palaeoclimatology, Palaeoecology 432, pp. 1-14. (10.1016/j.palaeo.2015.04.029)
- Eisele, S., Freundt, A., Kutterolf, S., Ramalho, R. S., Kwasnitschka, T., Wang, K. L. and Hemming, S. R. 2015. Stratigraphy of the Pleistocene, phonolitic Cão Grande formation on Santo Antão, Cape Verde. Journal of Volcanology and Geothermal Research 301, pp. 204-220. (10.1016/j.jvolgeores.2015.03.012)
- Ávila, S. P. et al. 2015. Palaeoecology, taphonomy, and preservation of a lower Pliocene shell bed (coquina) from a volcanic oceanic island (Santa Maria Island, Azores). Palaeogeography, Palaeoclimatology, Palaeoecology 430, pp. 57-73. (10.1016/j.palaeo.2015.04.015)
- Ávila, S. P. et al. 2015. The Palaeontological heritage of Santa Maria Island (Azores: NE Atlantic): a re-evaluation of geosites in GeoPark Azores and their use in Geotourism. Geoheritage 8, pp. 155-171. (10.1007/s12371-015-0148-x)
- Ávila, S. P. et al. 2015. A review of the MIS 5e highstand deposits from Santa Maria Island (Azores, NE Atlantic): palaeobiodiversity, palaeoecology and palaeobiogeography. Quaternary Science Reviews 114, pp. 126-148. (10.1016/j.quascirev.2015.02.012)
- Ramalho, R. S. et al. 2015. The emergence of volcanic oceanic islands on a slow-moving plate: the example of Madeira Island, NE Atlantic. Geochemistry, Geophysics, Geosystems 16(2), pp. 522-537. (10.1002/2014GC005657)
- Johnson, M. E., Ramalho, R. S., Baarli, B. G., Cachao, M., da Silva, C. M., Mayoral, E. J. and Santos, A. 2014. Miocene-Pliocene rocky shores on Sao Nicolau (Cape Verde Islands): contrasting windward and leeward biofacies on a volcanically active oceanic island. Palaeogeography, Palaeoclimatology, Palaeoecology 395, pp. 131-143. (10.1016/j.palaeo.2013.12.028)
- Johnson, M. E. et al. 2013. Coastal dunes with high content of rhodolith (coralline red algae) bioclasts: Pleistocene formations on Maio and Sao Nicolau in the Cape Verde archipelago. Aeolian Research 8, pp. 1-9. (10.1016/j.aeolia.2012.10.008)
- Ramalho, R. S., Quartau, R., Trenhaile, A. S., Mitchell, N. C., Woodroffe, C. D. and Avila, S. P. 2013. Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production. Earth-Science Reviews 127, pp. 140-170. (10.1016/j.earscirev.2013.10.007)
- Meireles, R. P., Quartau, R., Ramalho, R. S., Rebelo, A. C., Madeira, J., Zanon, V. and Avila, S. P. 2013. Depositional processes on oceanic island shelves - Evidence from storm-generated Neogene deposits from the mid-North Atlantic. Sedimentology 60(7), pp. 1769-1785. (10.1111/sed.12055)
- Mayoral, E. et al. 2013. Ichnology in oceanic islands, case studies from the Cape Verde Archipelago. Palaeogeography Palaeoclimatology Palaeoecology 381, pp. 47-66. (10.1016/j.palaeo.2013.04.014)
- Avila, S. P., Ramalho, R. and Vullo, R. 2012. Systematics, palaeoecology and palaeobiogeography of the Neogene fossil sharks from the Azores (Northeast Atlantic). Annales De Paleontologie 98(3), pp. 167-189. (10.1016/j.annpal.2012.04.001)
- Johnson, M. E. et al. 2012. Rhodoliths, uniformitarianism, and Darwin: Pleistocene and Recent carbonate deposits in the Cape Verde and Canary archipelagos. Palaeogeography Palaeoclimatology Palaeoecology 329, pp. 83-100. (10.1016/j.palaeo.2012.02.019)
- Ramalho, R., Helffrich, G., Cosca, M., Vance, D., Hoffmann, D. and Schmidt, D. N. 2010. Episodic swell growth inferred from variable uplift of the Cape Verde hotspot islands. Nature Geoscience 3(11), pp. 774-777. (10.1038/geo982)
- Ramalho, R. S., Helffrich, G., Cosca, M., Vance, D., Hoffmann, D. and Schmidt, D. N. 2010. Vertical movements of ocean island volcanoes: Insights from a stationary plate environment. Marine Geology 275(1-4), pp. 84-95. (10.1016/j.margeo.2010.04.009)
- Madeira, J., Mata, J., Mourao, C., da Silveira, A. B., Martins, S., Ramalho, R. and Hoffmann, D. L. 2010. Volcano-stratigraphic and structural evolution of Brava Island (Cape Verde) based on Ar-40/Ar-39, U-Th and field constraints. Journal of Volcanology and Geothermal Research 196(3-4), pp. 219-235. (10.1016/j.jvolgeores.2010.07.010)
- Ramalho, R., Helffrich, G., Schmidt, D. N. and Vance, D. 2010. Tracers of uplift and subsidence in the Cape Verde archipelago. Journal of the Geological Society 167(3), pp. 519-538. (10.1144/0016-76492009-056)
- Ramalho, R., Madeira, J., E.}, {., Silveira, A., Prada, S. and F.}, {. 2005. Tectónica da Ponta de São Lourenço, Madeira Island. Cadernos do Laboratorio Xeoloxico de Laxe(30), pp. 223-234.
Book sections
- Avila, S. P., Ramalho, R. S., Habermann, J. M. and Titschack, J. 2018. The marine fossil record at Santa Maria Island (Azores). In: Kueppers, U. and Beier, C. eds. Volcanoes of the Azores. Springer, pp. 155-196., (10.1007/978-3-642-32226-6_9)
- Johnson, M. E. et al. 2017. Taphonomic range and sedimentary dynamics of modern and fossil rhodolith beds: Macaronesian realm (North Atlantic ocean). In: Riosmena-Rodríguez, R., Nelson, W. and Aguirre, J. eds. Rhodolith/Maërl Beds: A Global Perspective., Vol. 15. Springer, pp. 221-261., (10.1007/978-3-319-29315-8_9)
- Jefferson, A. J., Ferrier, K. L., Perron, J. T. and Ramalho, R. 2014. Controls on the hydrological landscape evolution of shield volcanoes and volcanic ocean islands. In: Harpp, K. S. et al. eds. The Galápagos: A Natural Laboratory for the Earth Sciences. Geophysical Monograph Series AGU, pp. 185-213., (10.1002/9781118852538.ch10)
- Jefferson, A. J., Ferrier, K. L., Perron, J. T. and Ramalho, R. 2014. Controls on the hydrological and topographic evolution of shield volcanoes and volcanic ocean islands. In: Harpp, K. S. et al. eds. The Galápagos: A Natural Laboratory for the Earth Sciences. Wiley-Blackwell, pp. 185-213., (10.1002/9781118852538.ch10)
- Ramalho, R. A. S. and Ramalho, R. A. S. 2011. Dating of Sea-Level Palaeo-Markers. In: Building the Cape Verde Islands. Springer Theses-Recognizing Outstanding PhD Research Springer, pp. 139-176., (10.1007/978-3-642-19103-9_6)
- Ramalho, R. A. S. and Ramalho, R. A. S. 2011. Constraining the Cape Verde Swell Using Numerical Models. In: Building the Cape Verde Islands. Springer Theses-Recognizing Outstanding PhD Research Springer, pp. 27-46., (10.1007/978-3-642-19103-9_3)
Books
- Ramalho, R. 2011. Building the Cape Verde Islands. Springer Theses. Springer. (10.1007/978-3-642-19103-9)
- Ávila, S. et al. 2010. Os fósseis de Santa Maria (Açores) : a jazida da Prainha. Observatório Vulcanológico e Geotérmico dos Açores (OVGA); Vol. 45. Vitor Hugo Forjaz (OVGA).
Conferences
- Gómez Pazo, A. et al. 2024. Dinámica de bloques mediante sensores RFID en la Fajã da Caldeira de Santo Cristo (Ilha de São Jorge, Archipiélago de las Azores). Presented at: XII Coastal Geomorphology Conference, Valencia, Spain, 25-27 September 2024Proceedings of the XII Coastal Geomorphology Conference. pp. 159-164., (10.4995/GEOLIT24.2024.18573)
- Rebelo, A. C., Rasser, M., Johnson, M., Ramalho, R., Quartau, R. and Ávila, S. P. 2019. Formation, transport and deposition of rhodoliths on reefless insular shelves of the Azores volcanic Archipelago. Presented at: 34th IAS Meeting of Sedimentology, Rome, Italy, 10-13 September 2019.
- Mitchell, N., Zhao, Z., Quartau, R. and Ramalho, R. 2019. Coastal erosion rates of lava deltas around oceanic islands. Presented at: EGU General Assembly 2019, Vienna, Austria, 7-12 April 2019.
- Rebelo, A., Rasser, M., Johnson, M., Ramalho, R. and Quartau, R. 2019. Pleistocene coralline algal frameworks from the Azores (NE Atlantic). Presented at: 12th International Symposium on Fossil Algae, Lucknow, India, 16-24 September 2019.
- Ramalho, R., Quartau, R., Madeira, J. and Rebelo, A. C. 2018. The geology of Formigas Islets and its significance to our comprehension of the Terceira Rift in the Azores Triple Junction. Presented at: 2018 American Geophysical Union Fall Meeting, Washington DC, United States, 10-14 December 2018.
- Melo, C. et al. 2018. Genesis and morphological evolution of coastal talus-platforms (fajãs) with lagoons: the case study of the recently-formed Fajã dos Milagres (Corvo Island, Azores). Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Quartau, R., Trenhaile, A., Ramalho, R. and Mitchell, N. 2018. The role of subsidence in shelf widening around ocean island volcanoes: Insights from observed morphology and modeling. Presented at: 2018 American Geophysical Union Fall Meeting, Washington DC, United States, 10-14 December 2018.
- Ramalho, R. et al. 2018. Emergence and evolution of Santa Maria Island. Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Ramalho, R. et al. 2018. The geological evolution of Santa Maria Island in the Azores Archipelago: a review. Presented at: 10th Portuguese Nacional Geological Congress.
- Ramalho, R., Helffrich, G., Thomas, C., Quartau, R. and Madeira, J. 2018. The geological evolution of Flores island in the Azores Archipelago: a product of multi-stage volcanism and a complex history of vertical movements. Presented at: 10th Portuguese Nacional Geological Congress.
- Ramalho, R., Quartau, R., Ricchi, A., Madeira, J. and Cruz, J. 2018. Evidence for late Pleistocene volcanism at Santa Maria Island, Azores?. Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Ricchi, A., Quartau, R., Ramalho, R., Romagnoli, C. and Casalbore, D. 2018. Santa Maria Island’s (Azores Archipelago) geological evolution: new insights from high-resolution marine geophysical data.. Presented at: EGU General Assembly 2018, Vienna, Austria, 8-13 April 2018.
- Ávila, S. P. et al. 2017. Glacial-age tsunami deposits prove the tropical-ward geographical range expansion of marine cold-water species. Presented at: 5th International Tsunami Field Symposium 2017, Lisbon, Portugal, 3-7 September 2017.
- Ramalho, R. S., Madeira, J., Costa, P., Freitas, M. C. and Andrade, C. 2017. Fields of stranded megaclasts as potential evidence for tsunami inundation in Sal Island (Cape Verde). Presented at: 5th International Tsunami Field Symposium 2017, Lisbon, Portugal, 3-7 September 2017.
- Ramalho, R. S., Madeira, J., Hipólito, A. and Quartau, R. 2017. Evidence for megatsunami inundation on SE Santiago Island (Cape Verde) - the field of megaclasts of Ponta do Lobo. Presented at: 5th International Tsunami Field Symposium 2017, Lisbon, Portugal, 3-7 September 2017.
Ymchwil
Mae fy ymchwil yn canolbwyntio ar geodynameg a pheryglon llosgfynyddoedd ynysoedd y môr. Yn gyffredinol, rwy'n defnyddio dull integreiddiol ar y môr, gan gyfuno arsylwadau maes â geocronoleg a dadansoddiadau meintiol i ddatrys esblygiad llosgfynyddoedd ynysoedd y cefnfor a'u tirweddau, ar wahanol adegau a graddfeydd gofodol. Yn hanfodol, mae fy ngwaith yn canolbwyntio fwyfwy ar ymchwilio i'r peryglon a achosir gan losgfynyddoedd ynys, o dan lu o safbwyntiau. Felly mae fy ngweithgareddau ymchwil yn rhychwantu amrywiaeth o bynciau, yn bennaf:
Esblygiad ynysoedd y môr, magmatiaeth a pherygl folcanig
Rwy'n cael fy swyno gan sut mae llosgfynyddoedd ynysoedd y cefnforoedd yn esblygu trwy ofod ac amser, fel swyddogaeth y rhyngweithio cyfannol rhwng geodynameg mewnol a ffactorau allanol. Mae gen i ddiddordeb arbennig yn esblygiad llosgfynyddoedd ynysoedd y môr a mannau problemus cefnforol sydd wedi'u lleoli mewn amgylcheddau plât llonydd neu araf mewn perthynas â'u ffynhonnell toddi (ee Cape Verde, Madeira a Canaries), neu'r rhai sydd wedi'u lleoli yn agos at gribau canol y cefnfor a chyffyrdd triphlyg (ee Azores).
Yn y lleoliadau hyn, mae fy ymchwil yn canolbwyntio'n bennaf ar sut mae prosesau folcanig ac ymwthiol cystadleuol yn rheoli twf yr ynys, sut mae cynnydd cymhleth / hanesion ymsuddiant yn adlewyrchu newidiadau episodig mewn ymddygiad system magmatig, ac mae sut nad oes angen diffyg folcaniaeth yn adlewyrchu cwisiau magmatig. Rwyf hefyd yn cyfrannu at ymchwil sy'n integreiddio data synhwyro geolegol/geodetig / geoffisegol / o bell i ddeall prosesau ymwthiol gweithredol a'u mynegiant arwyneb. Yn ogystal, rwyf wedi bod yn edrych ar sut y gall ynysoedd ger rhwygiadau gael eu dinistrio gan brosesau tectonig.
O ran perygl folcanig, mae fy ymchwil yn canolbwyntio ar ddefnyddio arolygon bathymetrig cydraniad uchel wrth lunio asesiadau perygl folcanig solet ar ynysoedd folcanig, ac ar fodiwleiddio perygl folcanig mewn llosgfynyddoedd ynysoedd cefnforol â gwefr hydrolegol, gyda chysylltiadau ag amrywioldeb hinsawdd.
Potensial perygl tswnamïau llosgfynyddig
Yn ddiweddar, rydym wedi dangos bod cwymp ystlys yn Fogo - un o'r llosgfynyddoedd cefnforol mwyaf gweithgar ar y Ddaear – wedi sbarduno tswnami mawr gyda chanlyniadau enbyd ar ~ 73 flynyddoedd. Mae'r darganfyddiad hwn yn darparu llinell arall o dystiolaeth bod cwympiadau folcanig yn wir yn gallu sbarduno megatsunamis, gan fynd i'r afael â dadl ffyrnig ynghylch eu potensial perygl gwirioneddol.
Ar hyn o bryd rwy'n arwain menter ymchwil ryngwladol amlddisgyblaethol iawn i ymchwilio i effaith ranbarthol y tsunami hon, ynghyd ag ymchwiliad manwl i'r ffynhonnell, gan anelu at ymgorffori cyfyngiadau corfforol i fodelau rhifiadol newydd, mwy cadarn ar gyfer cynhyrchu, lluosogi ac effaith tswnamis llosgfynyddig.
Trwy'r ymchwil hon, rydym yn gobeithio ateb 3 o'r cwestiynau mwyaf sylfaenol sy'n rhwystro ein dealltwriaeth wyddonol o berygl megatsunami: (1) beth yw maint cychwynnol y tonnau hyn (mewn perthynas â'u fflwcs cyfaint)? 2Pa mor gyflym maen nhw'n diflannu wrth iddyn nhw luchio i'r pellter? Hynny yw, a ydyn nhw'n gallu difrod sylweddol ar draws basnau'r cefnforoedd? (3) Pa mor aml mae'r digwyddiadau hyn?
Rydym hefyd yn gweithio i sefydlu meini prawf mwy cadarn i nodi dyddodion tsunami ar ynysoedd folcanig a thynnu paramedrau ystyrlon wrth ailadeiladu digwyddiadau.
Rydym hefyd yn archwilio'r peryglon posibl a achosir gan tsunamis llai ond llawer amlach a ysgogwyd gan fethiant clogwyni arfordirol, gan ddefnyddio dull cydraniad uchel integreiddiol ar y tir/alltraeth ynghyd â modelu rhifiadol. Y syniad yw defnyddio enghreifftiau hanesyddol i raddnodi offer rhifiadol ar gyfer peryglon a dadansoddi risg o'r math hwn o ddigwyddiadau.
Yn ddiweddar rydym hefyd wedi ymchwilio i'r tsunami a gynhyrchwyd gan ffrwydrad anferth Hunga Tonga Hunga Ha'apai yn y Cefnfor Tawel a dangos bod hwn yn tswnami gwirioneddol fyd-eang a gynhyrchwyd gan ffynhonnell atmosfferig sy'n symud yn gyflym lle mae tonnau disgyrchiant acwstig sy'n pelydru o'r ffrwydrad wedi cyffroi'r cefnfor ac wedi trosglwyddo egni iddo trwy gyseiniant. Mae'r mecanwaith cyplysu aer-ddŵr hwn yn esbonio'r amseroedd teithio anarferol o gyflym a hyd hir y tsunami, yn ogystal â'i gyrhaeddiad byd-eang, gan arwain hefyd at donnau uwch ar hyd masau tir sy'n codi'n sydyn o ddarnau hir o ddyfroedd cefnfor dwfn.
Esblygiad arfordirol, erydiad, deinameg gwaddod silff, a bioddaearyddiaeth ynys
Mae fy ngwaith yn hynod amlddisgyblaethol ac mae'n cynnwys cyfraniadau i feysydd prosesau arwyneb y Ddaear, peryglon amgylcheddol, ac yn benodol gwyddoniaeth arfordirol. Mae gen i ddiddordeb arbennig mewn sut mae arfordiroedd a silffoedd ynys folcanig yn esblygu fel swyddogaeth folcaniaeth, gwastraff màs, erydiad, gwaddod a rhyngweithio â phrosesau biolegol.
Rydym bellach yn gweithio i gynnig mewnwelediadau mwy meintiol i'r pwnc, sef trwy ddefnyddio dull cyfunol ar y tir/ar y môr, gan gysylltu gwaith maes ar y tir â geoffiseg morol cydraniad uchel iawn, a thrwy ymgorffori'r datblygiadau diweddaraf mewn modelu rhifiadol geomorffolegol yn ein dadansoddiad.
Rwyf hefyd yn cydweithio'n weithredol â biolegwyr a phalaeontolegwyr wrth astudio biotâu morol ynysol ffosil ac ar ddylanwad osgiliadau ontogeny a glacio-ewstatig ynys mewn patrymau bioddaearyddiaeth forol.
Prosiectau Ymchwil Gweithredol
- PLUS - Plymio'r Eirin Samoa: Craidd dril ar Ynys Sasawi'i, Samoa i archwilio rhyngweithiadau ffos man poeth, ailgylchu cyfandirol, y biosffer dwfn, ac adnoddau geothermol. Gweithdy ICDP, $ 103k. Rôl: PI.
- ExTRAP – Astudiaeth archwiliadol o Tephra Records ym Mawndiroedd Azores. Grant Prosiect Archwiliol Portiwgal FCT, € 50k. Rôl: Co-I.
- VOLCAMOTION: Astudiaeth o'r mecanweithiau sy'n rheoli sbarduno, cyflymu ac arestio cwympo'r ochrau llosgfynydd ynysoedd cefnforol. MCI Standard Grant (Sbaen), € 162k. Rôl: Cyd-I (Partner Rhyngwladol).
- A yw Ynys y Pasg (Rapa Nui) yn dal i fod yn weithredol? Yn dilyn olion ei folcaniaeth ddiweddar. NARD Standard Grant (Chile), $ 180k. Rôl: Cyd-I (Partner Rhyngwladol).
- PERYGLUS - Gwerthuso PERYGLON sy'n gysylltiedig â ffurfio a datblygu "fajãs" diferu a lafig yn archipelagos folcanig POrtugUese. Grant Safon Portiwgal FCT, € 250k (2021–2025). Swydd: Cyd-PI.
- GEMMA - gwella Modelau GEodynamic yn MAcaronesia trwy gymodi data geodetig, geoffisegol a daearegol. Grant Safon Portiwgal FCT, € 250k (2022–2025). Swydd: Co-I.
- Mae ymchwiliadau geoffisegol a daearegol integredig o flanc folcanig yn cwympo yn archipelago Cape Verdes deheuol: Tarddiad, maint a photensial tswnami. Grant Safon DFG (yr Almaen), € 360k. Rôl: Cyd-I (Partner Rhyngwladol).
Prosiectau ymchwil yn y gorffennol:
- Eirin folcanig o wely'r môr i ymyl y gofod. Grant Generator GW4, £20k. Rôl: Cyd-PI
- Mecaneg ymwthio clawdd mewn lleoliadau tectonig llithro aneglur: Datrys achosion haid seismig prin Mawrth 2022 yn Ynys São Jorge, Azores. Grant Brys NERC, £100k. Rôl: Cyd-PI
- UNTIeD - UNlocking y megaTsunamI Deadlock: gan ddefnyddio'r effeithiau agos-ffynhonnell i atal cynhyrchu tswnami gan flank folcanig yn cwympo. Grant Safon FCT Portiwgal a gydariennir gan FEDER (POR Lisboa 2020), € 240k (2018–2022). Rôl: PI.
- MEGAWAVE – Datrys potensial peryglon tswnamïau a ysgogwyd gan flank folcanig yn cwympo. Grant Safon Portiwgal FCT, € 260k (2016–2021). Rôl: PI.
- RV METEOR M155 mordaith – Cwymp ochr disgyrchiant tsunamigenig llosgfynydd Fogo, Ynysoedd Cape Verde. Ariannwyd gan DFG, € 169k (2019). Swydd: Cyd-PI.
- GOLWG - Cyfyngiadau Seismig a Geocemegol ar system Madeira HoTspot. Grant Safon Portiwgal FCT, € 250k (2018–2022). Swydd: Co-I.
- PLATMAR - Datblygu silffoedd ynys folcanig: mewnwelediadau o Ynys Sta. Maria a goblygiadau ar asesu peryglon, mapio cynefinoedd a rheoli agregau morol. Grant Safon Portiwgal FCT, € 200k (2016–2020). Rôl: Cyd-Fi ac Arweinydd Tasgau.
- TÂN - llosgfynydd Ynys Fogo: REsearch amlddisgyblaethol ar 2014/15 Ffrwydrad. Grant Safon Portiwgal FCT, € 200k (2016–2020). Rôl: Cyd-Fi ac Arweinydd Tasgau.
- Rhodolithau o Archipelago Cape Verde: mewnwelediadau i newid yn yr hinsawdd a deinameg gwaddod megatsunami. Ariannwyd gan DFG, € 20k (2018–2021). Swydd: Co-I.
- YNYS FREEBOARD – Beth all ynys-isostasy ddweud wrthym am ddeinameg hotspot. FP7 Fellwoship Marie Curie ariannwyd gan yr ERC, € 272k (2013-2016).
- Ymchwiliad i Esgyniad Ynys Azores rhanbarth Ynys Azores. Ariannwyd gan DFG, € 150k (2011–2013). Swydd: Co-I.
Addysgu
Rwy'n addysgu amrywiaeth o bynciau ar draws geowyddorau, yn enwedig mewn themâu sy'n ymwneud â geoberyglon, geodynameg, geomorffoleg, folcaniaeth a sgiliau maes.
Ar hyn o bryd rwy'n dysgu yn y modiwlau canlynol:
EA1300 Byd Amgylcheddau Dynamig (Blwyddyn 1)
Gwaith Maes Daearegol EA2301, Dadansoddi Data a Sgiliau Proffesiynol (Blwyddyn 2)
EAT402 Peryglon Amgylcheddol mewn Byd sy'n Newid (Peryglon Amgylcheddol MSc)
Asesiad Risg EAT406 (Peryglon Amgylcheddol MSc)
EAT408 Peryglon Amgylcheddol Astudiaethau Achos (Peryglon Amgylcheddol MSc)
EAT409 Synhwyro Peryglon a Risgiau o Bell (Peryglon Amgylcheddol MSc)
Rwyf hefyd yn goruchwylio prosiectau traethawd hir yn y modiwlau canlynol:
EA4301-4303 MSci Traethawd Hir Ymchwil
EAT401 Traethawd Hir Unigol (Peryglon Amgylcheddol MSc)
Rwyf hefyd yn cyfrannu at gydrannau maes y modiwlau canlynol:
EA1304 Gwaith Maes Gwyddoniaeth y Ddaear
EA2301 / EA2302 Gwaith Maes Daearegol Geolegol / Cymhwysol, Dadansoddi Data a Sgiliau Proffesiynol
Cyfraniadau addysgu blaenorol yng Nghaerdydd:
EA3306 Uwch Daeareg Amgylcheddol (Blwyddyn 3)
Bywgraffiad
Rolau Academaidd:
2024: Uwch Ddarlithydd, Prifysgol Caerdydd
2021: Darlithydd, Prifysgol Caerdydd
2016: Uwch Gymrawd Ymchwil a Darlithydd Gwahoddedig, Instituto Dom Luiz, Prifysgol Lisbon
2013: Marie Curie Independent Outgoing Research Fellow, Prifysgol Bryste ac Arsyllfa Ddaear Lamont-Doherty Prifysgol Columbia
2011: Cynorthwy-ydd Ymchwil Ôl-ddoethurol, Prifysgol Münster
Rolau Honorary/Adjunct:
Ymchwilydd Anrhydeddus a Darlithydd Gwahoddedig yn Instituto Dom Luiz, Prifysgol Lisbon (Portiwgal).
Addysg
2010: PhD Gwyddorau Daear, Prifysgol Bryste
2004: MSc Daeareg Ddeinamig , Prifysgol Lisbon
2001: Bl. (Hons) Daeareg, Prifysgol Lisbon
Anrhydeddau a dyfarniadau
- Springer Thesis Award (2011) - one of a few selected outstanding PhD theses from around the world and across the physical sciences in 2011.
- Runners-up Best Talk (2007) at the British Geophysical Association Postgraduate Research in Progress Meeting, 2-4 September 2007, Cardiff.
Aelodaethau proffesiynol
- 2007 – present: Fellow of the Geological Society of London
- 2008 – present: member of the American Geophysical Union
- 2011 – present: member of the European Geosciences Union
- 2012 – present: member of the International Association of Volcanology and Chemistry of Earth's Interior
Meysydd goruchwyliaeth
I am interested in supervising PhD, MSc and MSCi students in the areas of:
- Geo-environmental hazards
- Volcanology & volcanic geology
- Geomorphology of volcanic landscapes
- Oceanic plate geodynamics & hotspots
- Coastal evolution of rocky shores
- Island geological/biological co-evolution
Goruchwyliaeth gyfredol
Eliza Dennis
Arddangoswr Graddedig
Chanin Maetmueang
Myfyriwr ymchwil
Prosiectau'r gorffennol
Prosiectau PhD
Mariana Andrade, PhD (2018-2023) "Perygl folcanig ar losgfynyddoedd Ynys Ocean sy'n cael ei wefru'n hydrolig - achos Ynys y Blodau (Azores)". Rôl: Prif Oruchwyliwr.
MSc/MSci Prosiectau
Cariad Morgan, MSc (2024) "Ymchwilio i beryglon lludw folcanig o Santa Barbara Volcano, Terceira Island, Azores." Rôl: Prif Oruchwyliwr.
Oliver Allsop, MSc (2024) "Asesu Risg Volcanig ar Ynys São Jorge: Efelychiadau Llif Lava a Strategaethau Lliniaru ". Rôl: Prif Oruchwyliwr.
Eliza Dennis, MSc (2023) "Ymchwilio i berygl folcanig ar Ynys Flores, Azores". Rôl: Prif Oruchwyliwr.
Ben Nursey, MSc (2023) "Y perygl a berir gan wastraff màs clogwyni arfordirol tsunamigenig yn Flores Island, Azores". Rôl: Prif Oruchwyliwr.
Megan Hall (2023) "Tystiolaeth ar gyfer effeithiau tonnau eithafol (storm a tsunami) ar Ynys Sal, Cape Verde". Rôl: Prif Oruchwyliwr.
Owen Rees, MSci (2022) "Meintioli effaith erydiad arfordirol ar ddelta lafa o Pico, Azores". Rôl: Prif Oruchwyliwr.
Heidi Brice, MSci (2020-21) "Perygl tirlithriad mewn llosgfynyddoedd ynysoedd y cefnfor: achos Tope de Coroa (Santo Antão, Ynysoedd Cape Verde)". Rôl: Prif Oruchwyliwr.
Ana Teves, MSc (2017-18) "Mae lafa hanesyddol yn llifo o Fogo Volcano: mapio cydraniad uchel a dadansoddiad geomorffolegol". Swydd: Cyd-Weithredwr.
Carlos Melo, MSc (2014-16) "Gwreiddiau ac esblygiad llwyfannau talu-ar-lein arfordirol (fajãs) gyda systemau lagŵn". Rôl: Cyd-oruchwyliwr (Goruchwyliwr Arweiniol dros dro).
Katrien Spieker, MSc (2011-12) "Swyddogaethau derbynnydd Azores a Moroco". Swydd: Cyd-Weithredwr.
Prosiectau Blwyddyn 3
Charlotte Gibson (2022-23) "Effeithiau amgylcheddol posibl Safleoedd Tirlenwi Madeley Heath a Yew Tree Farm". Rôl: Prif Oruchwyliwr.
Grace Keats (2023-24) "Beth yw'r halogyddion posibl sy'n gysylltiedig â hen safle tirlenwi pwll clai yn Bicester, ac a ydyn nhw'n peri risg annerbyniol i'r derbynyddion?". Rôl: Prif Oruchwyliwr.
Contact Details
+44 29208 75367
Y Prif Adeilad, Llawr 3, Ystafell 3.16, Plas y Parc, Caerdydd, CF10 3AT
Themâu ymchwil
Arbenigeddau
- Daeareg
- Llosgfynyddoedd
- Peryglon naturiol
- Ynysoedd Oceanic
- Tsunamis