![Shasta Marrero](https://profiles-cardiff.imgix.net/attachments/6534?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Shasta Marrero
(hi/ei)
Darlithydd mewn Daearyddiaeth Amgylcheddol a Ffisegol
Ysgol Gwyddorau'r Ddaear a'r Amgylchedd
- Ar gael fel goruchwyliwr ôl-raddedig
Trosolwyg
Rwyf am ddeall sut mae gwahanol brosesau yn newid wyneb y Ddaear. Rwy'n defnyddio tracwyr (a elwir yn niwclidau cosmogenic) i edrych ar brosesau sy'n siapio'r wyneb (fel erydiad) a hyd yma pan ddigwyddodd digwyddiadau (fel echdoriadau folcanig neu symudiadau rhewlifol).
Rwy'n cymhwyso'r dechneg hon i lawer o wahanol bynciau a meysydd maes tra'n parhau i wella'r technegau labordy a'r rhaglenni cyfrifiadurol a ddefnyddiwn i ddehongli'r data.
Mae fy niddordebau yn cynnwys:
- Hanes rhewlifol
- Geocronoleg
- Geomorffoleg
Cyhoeddiad
2024
- Tuestad, T. et al. 2024. Late Glacial-Holocene cirque glacier chronology on sub-Antarctic Kerguelen Archipelago (49°S) based on cosmogenic 36Cl exposure dating. Quaternary Science Reviews 336, article number: 108754. (10.1016/j.quascirev.2024.108754)
- Whitby, M., Mao, F., Stawarz, K., Marrero, S. and Walton, J. L. 2024. Serious Games Cookbook: A beginner's guide to using and designing serious games. Coventry: University of Warwick Press. (10.31273/978-1-911675-13-6)
2022
- Leontaritis, A. D., Pavlopoulos, K., Marrero, S. M., Ribolini, A., Hughes, P. D. and Spagnolo, M. 2022. Glaciations on ophiolite terrain in the North Pindus Mountains, Greece: New geomorphological insights and preliminary 36Cl exposure dating. Geomorphology 413, article number: 108335. (10.1016/j.geomorph.2022.108335)
- Woodward, J. et al. 2022. Blue-ice moraines formation in the Heritage Range, West Antarctica: Implications for ice sheet history and climate reconstruction. Quaternary Science Advances 6, article number: 100051. (10.1016/j.qsa.2022.100051)
2021
- Anjar, J., Akҫar, N., Larsen, E. A., Lyså, A., Marrero, S., Mozafari, N. and Vockenhuber, C. 2021. Cosmogenic exposure dating (36Cl) of landforms on Jan Mayen, North Atlantic, and the effects of bedrock formation age assumptions on 36Cl ages. Geosciences 11(9), article number: 390. (10.3390/geosciences11090390)
2019
- Glendell, M., Palarea-Albaladejo, J., Pohle, I., Marrero, S., McCreadie, B., Cameron, G. and Stutter, M. 2019. Modeling the ecological impact of phosphorus in catchments with multiple environmental stressors. Journal of Environmental Quality 48(5), pp. 1336-1346. (10.2134/jeq2019.05.0195)
- Mechernich, S. et al. 2019. Carbonate and silicate intercomparison materials for cosmogenic 36Cl measurements. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 455, pp. 250-259. (10.1016/j.nimb.2019.01.024)
- Winter, K. et al. 2019. Radar‐Detected Englacial Debris in the West Antarctic Ice Sheet. Geophysical Research Letters 46(17-18), pp. 10454--10462. (10.1029/2019GL084012)
2018
- Sugden, D. E. et al. 2018. Corrigendum to “The million-year evolution of the glacial trimline in the southernmost Ellsworth Mountains, Antarctica” [Earth and Planetary Science Letters 469 (2017) 42–52]. Earth and Planetary Science Letters 502, pp. 291-292. (10.1016/j.epsl.2018.08.053)
- Marrero, S. M. et al. 2018. Controls on subaerial erosion rates in Antarctica. Earth and Planetary Science Letters 501, pp. 56--66. (10.1016/j.epsl.2018.08.018)
2017
- Shi, X. et al. 2017. Evaluating the size and extent of paleolakes in central Tibet during the late Pleistocene. Geophysical Research Letters 44(11), pp. 5476--5485. (10.1002/2017GL072686)
- Sugden, D. E., Hein, A. S., Woodward, J., Marrero, S. M. and {A, . 2017. The million-year evolution of the glacial trimline in the southernmost Ellsworth Mountains, Antarctica. Earth and Planetary Science Letters 469, pp. 42--52. (10.1016/j.epsl.2017.04.006)
2016
- Hein, A. S. et al. 2016. Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet. Nature Communications 7(1), article number: 12511. (10.1038/ncomms12511)
- Borchers, B. et al. 2016. Geological calibration of spallation production rates in the CRONUS-Earth project. Quaternary Geochronology 31, pp. 188--198. (10.1016/j.quageo.2015.01.009)
- Marrero, S. M., Phillips, F. M., Borchers, B., Lifton, N., Aumer, R. and Balco, G. 2016. Cosmogenic nuclide systematics and the CRONUScalc program. Quaternary Geochronology 31, pp. 160-187. (10.1016/j.quageo.2015.09.005)
- Marrero, S. M., Phillips, F. M., Caffee, M. W. and Gosse, J. C. 2016. CRONUS-Earth cosmogenic 36Cl calibration. Quaternary Geochronology 31, pp. 199-219. (10.1016/j.quageo.2015.10.002)
- Hein, A. S. et al. 2016. Evidence for the stability of the West Antarctic Ice Sheet divide for 1.4 million years. Nature Communications 7, article number: 10325. (10.1038/ncomms10325)
- Phillips, F. et al. 2016. Where now? Reflections on future directions for cosmogenic nuclide research from the CRONUS Projects. Quaternary Geochronology 31, pp. 155-159. (10.1016/j.quageo.2015.04.010)
- Marius Mudd, S., Harel, M., Hurst, M., Grieve, S. and Marrero, S. 2016. The CAIRN method: Automated, reproducible calculation of catchment-averaged denudation rates from cosmogenic nuclide concentrations. Earth Surface Dynamics 4(3), pp. 655-674. (10.5194/esurf-4-655-2016)
- Phillips, F., Hinz, M., Marrero, S. and Nishiizumi, K. 2016. Cosmogenic nuclide data sets from the Sierra Nevada, California, for assessment of nuclide production models: II. Sample sites and evaluation. Quaternary Geochronology 35, pp. 101-118. (10.1016/j.quageo.2016.01.003)
- Winter, K. et al. 2016. Assessing the continuity of the blue ice climate record at Patriot Hills, Horseshoe Valley, West Antarctica. Geophysical Research Letters 43(5), pp. 2019-2026. (10.1002/2015GL066476)
- Westoby, M., Dunning, S., Woodward, J., Hein, A., Marrero, S., Winter, K. and Sugden, D. 2016. Interannual surface evolution of an Antarctic blue-ice moraine using multi-temporal DEMs. Earth Surface Dynamics 4(2), pp. 515-529. (10.5194/esurf-4-515-2016)
- Phillips, F. et al. 2016. The CRONUS-Earth Project: A synthesis. Quaternary Geochronology 31, pp. 119-154. (10.1016/j.quageo.2015.09.006)
- Phillips, F. et al. 2016. CRONUS-Earth calibration samples from the Huancané II moraines, Quelccaya Ice Cap, Peru. Quaternary Geochronology 31, pp. 220-236. (10.1016/j.quageo.2015.10.005)
2015
- Parmelee, D. E., Kyle, P. R., Kurz, M. D., Marrero, S. M. and Phillips, F. M. 2015. A new Holocene eruptive history of Erebus volcano, Antarctica using cosmogenic 3He and 36Cl exposure ages. Quaternary Geochronology 30, pp. 114--131. (10.1016/j.quageo.2015.09.001)
- Westoby, M., Dunning, S., Woodward, J., Hein, A., Marrero, S., Winter, K. and Sugden, D. 2015. Instruments and methods: Sedimentological characterization of Antarctic moraines using uavs and Structure-from-Motion photogrammetry. Journal of Glaciology 61(230), pp. 1088-1102. (10.3189/2015JoG15J086)
- Lifton, N. et al. 2015. In situ cosmogenic nuclide production rate calibration for the CRONUS-Earth project from lake Bonneville, Utah, shoreline features. Quaternary Geochronology 26(1), pp. 56-69. (10.1016/j.quageo.2014.11.002)
2014
- Oskin, M., Burbank, D., Phillips, F., Marrero, S., Bookhagen, B. and Selander, J. 2014. Relationship of channel steepness to channel incision rate from a tilted and progressively exposed unconformity surface. JGR Earth Surface 119(2), pp. 366-384. (10.1002/2013JF002826)
2008
- Kirby, E., Anandakrishnan, S., Phillips, F. and Marrero, S. 2008. Late Pleistocene slip rate along the Owens Valley fault, eastern California. Geophysical Research Letters 35(1), pp. -. (https://doi.org/10.1029/2007GL031970)
Articles
- Tuestad, T. et al. 2024. Late Glacial-Holocene cirque glacier chronology on sub-Antarctic Kerguelen Archipelago (49°S) based on cosmogenic 36Cl exposure dating. Quaternary Science Reviews 336, article number: 108754. (10.1016/j.quascirev.2024.108754)
- Leontaritis, A. D., Pavlopoulos, K., Marrero, S. M., Ribolini, A., Hughes, P. D. and Spagnolo, M. 2022. Glaciations on ophiolite terrain in the North Pindus Mountains, Greece: New geomorphological insights and preliminary 36Cl exposure dating. Geomorphology 413, article number: 108335. (10.1016/j.geomorph.2022.108335)
- Woodward, J. et al. 2022. Blue-ice moraines formation in the Heritage Range, West Antarctica: Implications for ice sheet history and climate reconstruction. Quaternary Science Advances 6, article number: 100051. (10.1016/j.qsa.2022.100051)
- Anjar, J., Akҫar, N., Larsen, E. A., Lyså, A., Marrero, S., Mozafari, N. and Vockenhuber, C. 2021. Cosmogenic exposure dating (36Cl) of landforms on Jan Mayen, North Atlantic, and the effects of bedrock formation age assumptions on 36Cl ages. Geosciences 11(9), article number: 390. (10.3390/geosciences11090390)
- Glendell, M., Palarea-Albaladejo, J., Pohle, I., Marrero, S., McCreadie, B., Cameron, G. and Stutter, M. 2019. Modeling the ecological impact of phosphorus in catchments with multiple environmental stressors. Journal of Environmental Quality 48(5), pp. 1336-1346. (10.2134/jeq2019.05.0195)
- Mechernich, S. et al. 2019. Carbonate and silicate intercomparison materials for cosmogenic 36Cl measurements. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 455, pp. 250-259. (10.1016/j.nimb.2019.01.024)
- Winter, K. et al. 2019. Radar‐Detected Englacial Debris in the West Antarctic Ice Sheet. Geophysical Research Letters 46(17-18), pp. 10454--10462. (10.1029/2019GL084012)
- Sugden, D. E. et al. 2018. Corrigendum to “The million-year evolution of the glacial trimline in the southernmost Ellsworth Mountains, Antarctica” [Earth and Planetary Science Letters 469 (2017) 42–52]. Earth and Planetary Science Letters 502, pp. 291-292. (10.1016/j.epsl.2018.08.053)
- Marrero, S. M. et al. 2018. Controls on subaerial erosion rates in Antarctica. Earth and Planetary Science Letters 501, pp. 56--66. (10.1016/j.epsl.2018.08.018)
- Shi, X. et al. 2017. Evaluating the size and extent of paleolakes in central Tibet during the late Pleistocene. Geophysical Research Letters 44(11), pp. 5476--5485. (10.1002/2017GL072686)
- Sugden, D. E., Hein, A. S., Woodward, J., Marrero, S. M. and {A, . 2017. The million-year evolution of the glacial trimline in the southernmost Ellsworth Mountains, Antarctica. Earth and Planetary Science Letters 469, pp. 42--52. (10.1016/j.epsl.2017.04.006)
- Hein, A. S. et al. 2016. Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet. Nature Communications 7(1), article number: 12511. (10.1038/ncomms12511)
- Borchers, B. et al. 2016. Geological calibration of spallation production rates in the CRONUS-Earth project. Quaternary Geochronology 31, pp. 188--198. (10.1016/j.quageo.2015.01.009)
- Marrero, S. M., Phillips, F. M., Borchers, B., Lifton, N., Aumer, R. and Balco, G. 2016. Cosmogenic nuclide systematics and the CRONUScalc program. Quaternary Geochronology 31, pp. 160-187. (10.1016/j.quageo.2015.09.005)
- Marrero, S. M., Phillips, F. M., Caffee, M. W. and Gosse, J. C. 2016. CRONUS-Earth cosmogenic 36Cl calibration. Quaternary Geochronology 31, pp. 199-219. (10.1016/j.quageo.2015.10.002)
- Hein, A. S. et al. 2016. Evidence for the stability of the West Antarctic Ice Sheet divide for 1.4 million years. Nature Communications 7, article number: 10325. (10.1038/ncomms10325)
- Phillips, F. et al. 2016. Where now? Reflections on future directions for cosmogenic nuclide research from the CRONUS Projects. Quaternary Geochronology 31, pp. 155-159. (10.1016/j.quageo.2015.04.010)
- Marius Mudd, S., Harel, M., Hurst, M., Grieve, S. and Marrero, S. 2016. The CAIRN method: Automated, reproducible calculation of catchment-averaged denudation rates from cosmogenic nuclide concentrations. Earth Surface Dynamics 4(3), pp. 655-674. (10.5194/esurf-4-655-2016)
- Phillips, F., Hinz, M., Marrero, S. and Nishiizumi, K. 2016. Cosmogenic nuclide data sets from the Sierra Nevada, California, for assessment of nuclide production models: II. Sample sites and evaluation. Quaternary Geochronology 35, pp. 101-118. (10.1016/j.quageo.2016.01.003)
- Winter, K. et al. 2016. Assessing the continuity of the blue ice climate record at Patriot Hills, Horseshoe Valley, West Antarctica. Geophysical Research Letters 43(5), pp. 2019-2026. (10.1002/2015GL066476)
- Westoby, M., Dunning, S., Woodward, J., Hein, A., Marrero, S., Winter, K. and Sugden, D. 2016. Interannual surface evolution of an Antarctic blue-ice moraine using multi-temporal DEMs. Earth Surface Dynamics 4(2), pp. 515-529. (10.5194/esurf-4-515-2016)
- Phillips, F. et al. 2016. The CRONUS-Earth Project: A synthesis. Quaternary Geochronology 31, pp. 119-154. (10.1016/j.quageo.2015.09.006)
- Phillips, F. et al. 2016. CRONUS-Earth calibration samples from the Huancané II moraines, Quelccaya Ice Cap, Peru. Quaternary Geochronology 31, pp. 220-236. (10.1016/j.quageo.2015.10.005)
- Parmelee, D. E., Kyle, P. R., Kurz, M. D., Marrero, S. M. and Phillips, F. M. 2015. A new Holocene eruptive history of Erebus volcano, Antarctica using cosmogenic 3He and 36Cl exposure ages. Quaternary Geochronology 30, pp. 114--131. (10.1016/j.quageo.2015.09.001)
- Westoby, M., Dunning, S., Woodward, J., Hein, A., Marrero, S., Winter, K. and Sugden, D. 2015. Instruments and methods: Sedimentological characterization of Antarctic moraines using uavs and Structure-from-Motion photogrammetry. Journal of Glaciology 61(230), pp. 1088-1102. (10.3189/2015JoG15J086)
- Lifton, N. et al. 2015. In situ cosmogenic nuclide production rate calibration for the CRONUS-Earth project from lake Bonneville, Utah, shoreline features. Quaternary Geochronology 26(1), pp. 56-69. (10.1016/j.quageo.2014.11.002)
- Oskin, M., Burbank, D., Phillips, F., Marrero, S., Bookhagen, B. and Selander, J. 2014. Relationship of channel steepness to channel incision rate from a tilted and progressively exposed unconformity surface. JGR Earth Surface 119(2), pp. 366-384. (10.1002/2013JF002826)
- Kirby, E., Anandakrishnan, S., Phillips, F. and Marrero, S. 2008. Late Pleistocene slip rate along the Owens Valley fault, eastern California. Geophysical Research Letters 35(1), pp. -. (https://doi.org/10.1029/2007GL031970)
Books
- Whitby, M., Mao, F., Stawarz, K., Marrero, S. and Walton, J. L. 2024. Serious Games Cookbook: A beginner's guide to using and designing serious games. Coventry: University of Warwick Press. (10.31273/978-1-911675-13-6)
Ymchwil
Mae fy ymchwil yn ymchwilio i nodweddion a phrosesau arwyneb gan ddefnyddio offeryn geocronolegol o'r enw niwclidau cosmogenic. Oherwydd bod niwclidau cosmogenic yn cael eu cynhyrchu'n bennaf yn y ddau fetr uchaf o arwyneb y ddaear, gallant ddarparu gwybodaeth bwysig am oedrannau amlygiad nodweddion ar yr wyneb, megis moraines rhewlifol neu liniau paleoshorelines, yn ogystal â gwybodaeth feintiol ar gyfraddau prosesau arwyneb, megis cyfraddau erydiad neu gyfraddau ymadael nam. Rwyf wedi gweithio ar brosiectau sy'n cynnwys llosgfynyddoedd, rhewlifoedd, namau ac erydiad ar bedwar cyfandir.
Yn ogystal â chymhwyso niwclysau cosmogenic yn y dirwedd, rydw i hefyd yn gweithio i wella'r dechneg ei hun. Rwyf wedi ysgrifennu cyfrifiannell ar-lein, y cyntaf i gyfrifo oedrannau amlygiad ar gyfer y pum niwclys: http://cronus.cosmogenicnuclides.rocks/. Rwyf hefyd yn arbenigwr mewn clorin-36 cosmogenic, sy'n arbennig o ddefnyddiol ar gyfer tirweddau sydd â chreigiau carbonad neu fasaltau.
Rwyf bellach yn gweithio tuag at greu offer newydd (modelau a dulliau labordy) y gallwn eu defnyddio i ymchwilio i brosesau arwyneb gan ddefnyddio niwclysau cosmogenic fel tracwyr yn y dirwedd. Mae hyn yn dibynnu ar gyfuniadau newydd o niwclysau i ddarparu mewnwelediadau newydd er mwyn ateb cwestiynau mwy cymhleth.
Addysgu
Ar hyn o bryd rwy'n dysgu daearyddiaeth amgylcheddol, gan ganolbwyntio ar faterion amgylcheddol ar raddfa fawr (e.e. llifogydd, datgoedwigo, newid yn yr hinsawdd) a rhyngweithio dynol â'r rhain.
Rwyf hefyd yn goruchwylio traethodau hir israddedig mewn rhewlifeg a geomorffoleg.
Addysgu blaenorol:
- Hydroleg (lefelau israddedig ac ôl-raddedig)
- Gwaith maes preswyl Ardal y Llynnoedd, mapio
- Daearyddiaeth Ffisegol Rhagarweiniol
- Daeareg/geowyddoniaeth ragarweiniol
- Dulliau labordy a maes
- Daearyddiaeth ffisegol / teithiau maes geomorffoleg
Bywgraffiad
| Dyddiadau | Safle | Disgrifiad: __________ |
2020-presennol | Darlithydd Disglair Ysgol Gwyddorau'r Ddaear a'r Amgylchedd, Prifysgol Caerdydd | Ymchwil i brosesau arwyneb gan ddefnyddio niwclysau cosmogenic fel tracwyr, gan ganolbwyntio'n benodol ar raglenni cyfrifiadurol newydd i'w dehongli. Dysgu daearyddiaeth amgylcheddol. |
2016-2019 | Hyfforddwr/Tiwtor Ysgol Pensaernïaeth a Phensaernïaeth Tirwedd Caeredin, Prifysgol Caeredin | Dylunio deunydd ac addysgu daearyddiaeth ffisegol i fyfyrwyr Pensaernïaeth Tirwedd (israddio ac ôl-radd). [Rhan amser] |
2017-2018 | Rheolwr Prosiect Canolfan Arbenigedd Dyfroedd yr Alban (CREW), Sefydliad James Hutton | Mae Canolfan Arbenigedd Dyfroedd yr Alban (CREW) yn gweithio ar y rhyngwyneb rhwng ymchwil, polisi ac ymarfer, gan ddarparu'r cyfieithiad ymarferol rhwng anghenion llywodraeth yr Alban ac ymchwilwyr/ymarferwyr. Roedd fy rôl yn cynnwys rheoli prosiectau a hwyluso cydgynhyrchu prosiectau sy'n cael eu gyrru gan bolisi. |
2016-2017 | Cydlynydd Rhwydwaith Hydroleg Ysgol GeoSciences, Prifysgol Caeredin | Cydlynu sy'n gysylltiedig â chychwyn rhwydwaith ymchwil dŵr newydd. |
2013-2016 | Ymchwilydd Ôl-ddoethurol Ysgol GeoSciences, Prifysgol Caeredin | Defnyddio moraines iâ glas i bennu hanes llen iâ Gorllewin yr Antarctig ym Mynyddoedd Ellsworth dros y 1.4 Ma. Gwaith maes yr Antarctig, paratoi labordy cnewyllyn cosmogenic, a modelu'r canlyniadau. |
2012-2013 | Darlithydd Hydroleg SUNY-Oneonta (NY, UDA) | Dylunio cyrsiau israddedig, addysgu darlithoedd/labordai/teithiau maes, ac ymchwil sy'n cynghori mewn sefydliad sy'n canolbwyntio ar addysgu o ansawdd uchel. |
Mehefin 2012 | Phd New Mexico Sefydliad Mwyngloddio a Thechnoleg | PhD mewn Gwyddorau'r Ddaear a'r Amgylchedd, gan arbenigo mewn Hydroleg Teitl: Graddnodi clorin cosmogenic-36 Rhan o Brosiect CRONUS-Earth, prosiect mawr, aml-sefydliad i wella'r defnydd o niwclidau cosmoleg. |
Ionawr 2009 | MS New Mexico Sefydliad Mwyngloddio a Thechnoleg | MS mewn Gwyddoniaeth y Ddaear a'r Amgylchedd, arbenigo mewn Hydroleg |
Pwyllgorau ac adolygu
Swyddi cyfredol:
- Golygydd Cyswllt, Bwletin GSA
- Adolygydd Cyfnodolyn:
- Datblygiadau Gwyddoniaeth
- Llythyrau Gwyddoniaeth y Ddaear a'r Planedau
- Journal of Geophysical Research - Earth Surface
- Geocronoleg Cwaternaidd
Swyddi blaenorol:
- Bwrdd Cyfarwyddwyr (Cynrychiolydd Amgen Rhyngwladol), Geowyddonwyr Cymdeithas Menywod
- Cynrychiolydd yr Alban a Gogledd Iwerddon, Cymdeithas Staff Ymchwil y Deyrnas Unedig
Contact Details
+44 29208 74579
Y Prif Adeilad, Ystafell Ystafell 1.32, Plas y Parc, Caerdydd, CF10 3AT
Themâu ymchwil
Arbenigeddau
- Geomorffoleg a phrosesau arwyneb y ddaear
- Dyddio cnewyllyn cosmogenic
