I am a biogeochemist and climate scientist working on the water and carbon cycles. This includes studying modern rivers and catchments, as well as the terrestrial geologic record (lakes, soils, and caves), to understand Earth system processes that link the biosphere, atmosphere, and lithosphere. The aim of this work is to gain a better understanding of how the Earth’s water and carbon cycles respond to forcings, including ongoing anthropogenic climate change. We are also working on the characterization and quantification of lithium deposits in lacustrine basins and enhanced weathering strategies for carbon dioxide removal. Our tools include geochemical measurements, field observations, reactive transport modeling, hydrologic modeling, and synthesis of climate model output.
I am a Filipino-American geoscientist from Bozeman, Montana. I was born in Europe and grew up in Hong Kong. In 2020 I co-founded the Asian Americans and Pacific Islanders in Geosciences organization. Additionally, I was a founding Advisory Council member of EarthArXiv, a preprint server for the Earth and Planetary Sciences, in 2017. In 2019 I was a Republic of Philippines Balik Scientist at the University of the Philippines, Diliman.
Prior to Brown, at Stanford University, I received a dual BS degree in 2012 from the Civil & Environmental Engineering Atmosphere/Energy program and in Geological & Environmental Sciences (with honors), an MS in Geological Sciences in 2014 working with Kate Maher (Environmental Geochemistry lab), and a PhD in Earth System Science in 2018 working with Page Chamberlain (Terrestrial Paleoclimate lab). From 2019 to 2021 I was a Miller Institute and President's Postdoctoral Fellow at UC Berkeley working with Daniel Stolper (Stable Isotope Geochemistry lab) and Don DePaolo.
At Brown I am appointed in the Department of Earth, Environmental and Planetary Sciences (DEEPS), as a Core Faculty and Director of Diversity, Equity and Inclusion in the Institute at Brown for Environment & Society (IBES), on the Executive Committee for the Initiative for Sustainable Energy (ISE), and as the Inclusion, Diversity, Equity, and Accessibility lead for LunaSCOPE (Brown's NASA SSERVI Team). I am also an affiliate faculty member of the Data Science Institute and the School of Engineering. I am currently funded by external grants from NSF, NASA, DOE, and the Heising-Simon Foundation.
Terrestrial Biogeochemistry and Paleoclimatology (Ibarra Lab)
LinkedIn
Google Scholar
ResearchGate
ORCID
| Arnold, Alexandrea, Mering, John, Santi, Lauren, Román‐Palacios, Cristian, Li, Huashu, Petryshyn, Victoria, Mitsunaga, Bryce, Elliott, Ben, Wilson, John, Lucarelli, Jamie, Boch, Ronny, Ibarra, Daniel, Li, Lin, Fan, Majie, Kaufman, Darrell, Cohen, Andrew, Dunbar, Rob, Russell, James, Lalonde, Stefan, Roy, Priyadarsi D., Dietzel, Martin, Liu, Xingqi, Chang, Fengming, Eagle, Robert A., Tripati, Aradhna. "Comparative clumped isotope temperature relationships in freshwater carbonates." The Depositional Record, 2024, pp. 26. |
| Ramos, Evan J., Larsen, William J., Hou, Yi, Muñoz, Sebastian, Kemeny, Preston Cosslett, Scheingross, Joel S., Repasch, Marisa N., Hovius, Niels, Sachse, Dirk, Ibarra, Daniel E., Torres, Mark A. "Competition or collaboration: Clay formation sets the relationship between silicate weathering and organic carbon burial in soil." Earth and Planetary Science Letters, vol. 628, 2024, pp. 118584. |
| Gao, Yuan, Gao, Youfeng, Ibarra, Daniel E. "Core Investigation of the International Continental Scientific Drilling Program from the Cretaceous Songliao Basin (SK-1/SK-2/SK-3), NE China." Field Trip Guidebook on Chinese Sedimentary Geology, 2024, pp. 31-119. |
| Bhattacharya, Tripti, Ibarra, Daniel E., Feng, Ran, Burls, Natalie. "Geochemical approaches to reconstructing Earth's hydroclimates." Reference Module in Earth Systems and Environmental Sciences, 2024. |
| Jenckes, J., Muñoz, S., Ibarra, D. E., Boutt, D. F., Munk, L. A. "Geochemical Weathering Variability in High Latitude Watersheds of the Gulf of Alaska." Journal of Geophysical Research: Earth Surface, vol. 129, no. 3, 2024. |
| D Kahn, AJ Evans, DE Ibarra, SW Parman, MB Weller. "Habitability of Sub-Earth Sized Exoplanets in Mobile and Stagnant Lid Tectonic Regimes." 2024. |
| Muñoz, S., Jenckes, J., Ramos, E. J., Munk, L. A., Ibarra, D. E. "Hydrologic and Landscape Controls on Rock Weathering Along a Glacial Gradient in South Central Alaska, USA." Journal of Geophysical Research: Earth Surface, vol. 129, no. 3, 2024. |
| R Havel, DE Ibarra, R. Bartoschewitz, G Budde. "INTERROGATING LEACHING PROCEDURES OF METEORITES FOR TRIPLE OXYGEN ISOTOPE ANALYSES." 2024. |
| Bhattacharya, Tripti, Brennan, Peter, Ibarra, Daniel, Gagnon, Catherine, Butler, Kristina, Terrazas, Alexa, Miller, Shaw, Munk, Lee, Boutt, David, Feng, Ran, Bullinger, Stephanie, Weisbeck, Lucy. "Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits." EarthArXiv, 2024. |
| T Bhattacharya, PR Brennan, DE Ibarra, CA Gagnon, KL Butler, A Terrazas, S Miller, LA Munk, DF Boutt, R Feng, SN Bullinger, L Weisbeck. "Pleistocene shifts in Great Basin hydroclimate seasonality govern the formation of lithium-rich paleolake deposits." Quaternary Science Reviews, 2024. |
| Hou, Yandong, Long, Hao, Tsukamoto, Sumiko, Lu, Zhengyao, Chen, Jie, Ibarra, Daniel E., Tamura, Toru, Zhang, Qiong, Sun, Weiyi, Zhang, Jingran, Gao, Lei, Frechen, Manfred, Shen, Ji. "Sahara’s surface transformation forced an abrupt hydroclimate decline and Neolithic culture transition in northern China." The Innovation, vol. 5, no. 1, 2024, pp. 100550. |
| Ibarra, Daniel E., Evaristo, Jaivime. "Soil pore water evaporation and temperature influences on clay mineral paleothermometry." Communications Earth & Environment, vol. 5, no. 1, 2024. |
| "Tracking hydroclimate extremes from deep In the tropics ." Past Global Changes Horizons, vol. 3, no. 1, 2024, pp. 13-19.0. |
| Kukla, Tyler, Ibarra, Daniel E., Lau, Kimberly V., Rugenstein, Jeremy K. C. "All aboard! Earth system investigations with the CH2O-CHOO TRAIN v1.0." Geoscientific Model Development, vol. 16, no. 19, 2023, pp. 5515-5538. |
| Leonard, Eric M., Laabs, Benjamin J.C., Marcott, Shaun A., Crawford, Edward E., Mackall, Benjamin T., Ibarra, Daniel E., Osman, Matthew B., Plummer, Mitchell A., Caffee, Marc W. "Chronology and climate of the Last Glacial Maximum and the subsequent deglaciation in the northern Medicine Bow Mountains, Wyoming, USA." Quaternary Science Advances, vol. 12, 2023, pp. 100109. |
| AJ Irving, A. Greshake, PK Carpenter, JS Boesenberg and DE Ibarra. "EVIDENCE FOR A PREVIOUSLY UNRECOGNIZED NON-CARBONACEOUS CHONDRITIC PARENT BODY FROM PETROLOGIC AND OXYGEN ISOTOPE STUDIES OF UNGROUPED MG-RICH CHONDRITE NORTHWEST AFRICA 15468." 2023, pp. 2309. |
| JS Boesenberg, M Humayun and DE Ibarra. "HASSI el BIOD 002: A PYROXENE PALLASITE FROM THE MANTLE OF THE IIAB IRON PARENT BODY." 2023, pp. 2376. |
| Ibarra, Daniel E., Dai, Jingen, Gao, Yuan, Lang, Xinghai, Duan, Pengzhen, Gao, Zongjun, Chen, Jiquan, Methner, Katharina, Sha, Lijuan, Tong, Hui, Han, Xu, Zhu, Dicheng, Li, Yalin, Tang, Juxing, Cheng, Hai, Chamberlain, C. Page, Wang, Chengshan. "High-elevation Tibetan Plateau before India–Eurasia collision recorded by triple oxygen isotopes." Nature Geoscience, 2023. |
| Jenckes, J., Munk, L. A., Ibarra, D. E., Boutt, D. F., Fellman, J., Hood, E. "Hydroclimate Drives Seasonal Riverine Export Across a Gradient of Glacierized High‐Latitude Coastal Catchments." Water Resources Research, vol. 59, no. 4, 2023. |
| Lloyd, Max K., Stein, Rebekah A., Ibarra, Daniel E., Barclay, Richard S., Wing, Scott L., Stahle, David W., Dawson, Todd E., Stolper, Daniel A. "Isotopic clumping in wood as a proxy for photorespiration in trees." Proceedings of the National Academy of Sciences, vol. 120, no. 46, 2023. |
| Leonard, Eric M., Laabs, Benjamin J.C., Robertson, Alexander, Plummer, Mitchell A., Ibarra, Daniel E., Caffee, Marc W. "Late Pleistocene glaciation in the southernmost Sangre de Cristo Mountains, New Mexico – Chronology and paleoclimate." Quaternary Science Advances, 2023, pp. 100070. |
| JS Boesenberg, M Humayun, AJ Irving and DE Ibarra. "NEW PYROXENE PALLASITES: BORDJI BADJI MOKHTAR 001 AND GYARUB ZANGBO, AND A PLETHORA OF PALLASITE PARENT BODIES." 2023, pp. 2392. |
| Boyce, C. Kevin, Ibarra, Daniel E., Nelsen, Matthew P., D'Antonio, Michael P. "Nitrogen‐based symbioses, phosphorus availability, and accounting for a modern world more productive than the Paleozoic." Geobiology, vol. 21, no. 1, 2023, pp. 86-101. |
| de Wet, C. B., Ibarra, D. E., Belanger, B. K., Oster, J. L. "North American Hydroclimate During Past Warms States: A Proxy Compilation‐Model Comparison for the Last Interglacial and the Mid‐Holocene." Paleoceanography and Paleoclimatology, vol. 38, no. 6, 2023. |
| Gagnon, Catherine A., Butler, Kristina L., Gaviria, Elizabeth, Terrazas, Alexa, Gao, Annabelle, Bhattacharya, Tripti, Boutt, David F., Munk, Lee Ann, Ibarra, Daniel E. "Paleoclimate controls on lithium enrichment in Great Basin Pliocene−Pleistocene lacustrine clays." GSA Bulletin, 2023. |
| DE Ibarra, J Evaristo. "Soil pore water evaporation and temperature influences on clay mineral paleothermometry." EarthArXiv, 2023. |
| D Khan, AJ Evans, DE Ibarra, SW Parman, MB Weller. "THE HABITABILITY OF MERCURY SIZED EXOPLANETS WITH MOBILE AND STAGNANT LID TECTONIC REGIMES." 2023, pp. 2799. |
| Pourret, Olivier, Ibarra, Daniel Enrique. "The rise of preprints in earth sciences." F1000Research, vol. 12, 2023, pp. 561. |
| Pourret, Olivier, Ibarra, Daniel. "The rise of preprints in Earth Sciences." EarthArXiv, 2023. |
| Weller, Matthew B., Evans, Alexander J., Ibarra, Daniel E., Johnson, Alexandria V. "Venus’s atmospheric nitrogen explained by ancient plate tectonics." Nature Astronomy, 2023. |
| Boyce, C. Kevin, Ibarra, Daniel E., D’Antonio, Michael P. "What we talk about when we talk about the long‐term carbon cycle." New Phytologist, vol. 237, no. 5, 2023, pp. 1550-1557. |
| Sekhon, Natasha, David, CP, Geronia, Mart Cyrel M., Custado, Manuel Justin G., Ibarra, Daniel Enrique. "A decrease in river discharge and rainfall amount, from a 100-year data set, in response to El Nino events on the interannual temporal scale for the Philippines." ESSOAr, 2022. |
| S Menemenlis, SM White, DE Ibarra, JM Lora. "A proxy-model comparison for mid-Pliocene warm period hydroclimate in the Southwestern US." Earth and Planetary Science Letters, vol. 596, 2022, pp. 117803. |
| Kukla, Tyler, Ibarra, Daniel, Lau, Kimberly, Rugenstein, Jeremy. "All aboard! Earth system investigations with the CH2O-CHOO TRAIN v1.0." EarthArXiv, 2022. |
| Kukla, Tyler, Ibarra, Daniel, Lau, Kimberly V., Rugenstein, Jeremy K. C. "All aboard! Earth system investigations with the CH2O-CHOO TRAIN v1.0." EGUsphere, 2022. |
| MB Weller, AJ Evans, DE Ibarra, AV Johnson, T Kukla. "Atmospheric Evidence of Early Plate Tectonics on Venus." 2022, pp. 2. |
| Arnold, Alexandrea Jay, Mering, John J, Santi, Lauren, Román-Palacios, Cristian, Li, Huashu, Petryshyn, Victoria, Mitsunaga, Bryce Akio, Elliott, Ben, Wilson, John, Lucarelli, Jamie Kaaren, Boch, Ronny, Ibarra, Daniel Enrique, Li, Lin, Fan, Majie, Kaufmann, Darrell, Cohen, Andrew S, Dunbar, Robert B, Russell, James M., Lalonde, Stefan, Roy, Priyadarsi, Dietzel, Martin, Liu, Xingqi, Chang, Fengming, Eagle, Rob, Tripati, Aradhna. "Comparative clumped isotope temperature relationships in freshwater carbonates." [], 2022. |
| J Jenckes, DE Ibarra, LA Munk. "Concentration‐Discharge Patterns Across the Gulf of Alaska Reveal Geomorphological and Glacierization Controls on Stream Water Solute Generation and Export." Geophysical Research Letters, vol. 49, no. 1, 2022. |
| Kukla, Tyler, Lau, Kimberly, Ibarra, Daniel, Rugenstein, Jeremy. "Deterministic icehouse and greenhouse climates throughout Earth history." EarthArXiv, 2022. |
| Kukla, T., Rugenstein, J. K. C., Ibarra, D. E., Winnick, M. J., Strömberg, C. A. E., Chamberlain, C. P. "Drier Winters Drove Cenozoic Open Habitat Expansion in North America." AGU Advances, vol. 3, no. 2, 2022. |
| Pourret, Olivier, Anand, Pallavi, Bots, Pieter, Cottrell, Elizabeth, Dosseto, Anthony, Gunter, Ashley, Hedding, David, Ibarra, Daniel, Irawan, Dasapta, Johannesson, Karen, Labidi, Jabrane, Little, Susan, Liu, Haiyan, Makhubela, Tebogo, Marin Carbonne, Johanna, Perez-Fodich, Alida, Riches, Amy, Tartèse, Romain, Tripati, Aradhna. "Evolution of diversity in the editorial boards of Geochimica et Cosmochimica Acta and Chemical Geology." EarthArXiv, 2022. |
| David, C. P., Custado, M. J., Sekhon, N., Ibarra, D. E. "Forecasting tropical ENSO-induced drought conditions using sea surface height in the Western Pacific." All Earth, vol. 34, no. 1, 2022, pp. 55-65. |
| Pourret, Olivier, Anand, Pallavi, Bots, Pieter, Cottrell, Elizabeth, Dosseto, Anthony, Gunter, Ashley, Hedding, David W., Ibarra, Daniel Enrique, Irawan, Dasapta Erwin, Johannesson, Karen, Labidi, Jabrane, Little, Susan, Liu, Haiyan, Makhubela, Tebogo Vincent, Marin Carbonne, Johanna, Perez-Fodich, Alida, Riches, Amy, Tartèse, Romain, Tripati, Aradhna. "Gender balance and geographical diversity in editorial boards of Geochimica et Cosmochimica Acta and Chemical Geology." European Science Editing, vol. 48, 2022. |
| N Sekhon, CPC David, MCM Geronia, MJG Custado, DE Ibarra. "Investigating the response of hydrological processes to El Niño events using a 100-year dataset from the western Pacific Ocean." Journal of Hydrology: Regional Studies, vol. 42, 2022, pp. 101174. |
| JQ Chen, Y Gao, DE Ibarra, JM Qin, CS Wang. "Mid-Latitude Precipitation in East Asia Influenced by a Fluctuating Greenhouse Climate During the Latest Cretaceous Through the Earliest Paleogene." SSRN Electronic Journal, 2022. |
| Chen, Jiquan, Gao, Yuan, Ibarra, Daniel E., Qin, Jianming, Wang, Chengshan. "Mid-latitude precipitation in East Asia influenced by a fluctuating greenhouse climate during the latest Cretaceous through the earliest Paleogene." Global and Planetary Change, 2022, pp. 103900. |
| de Wet, Cameron B., Ibarra, Daniel Enrique, Belanger, Bryce K., Oster, Jessica Leigh. "North American hydroclimate during past warms states: A proxy network-model comparison for the Last Interglacial and the mid-Holocene." ESSOAr, 2022. |
| Gagnon, Catherine, Butler, Kristina, Gaviria, Elizabeth, Terrazas, Alexa, Gao, Annabelle, Bhattacharya, Tripti, Boutt, David, Munk, Lee, Ibarra, Daniel. "Paleoclimate controls on lithium enrichment in Great Basin Pliocene-Pleistocene lacustrine clays." EarthArXiv, 2022. |
| Belem, A., Bell, T., Burdett, H. L., Ibarra, D., Kaushal, N., Keenan, B., Klimaszewski‐Patterson, A., Mette, M., Naeher, S., Onafeso, O. D., Panmei, C., Ratnayake, A. S., Truax, O. "Paleoclimatology and Paleoceanography Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science." Earth and Space Science, vol. 9, no. 1, 2022. |
| White, Sarah, Ibarra, Daniel, Wahl, David. "Reassessment of the Pliocene hydroclimate proxy network in western North America yields new insights into spatial patterns and temporal variability." [], 2022. |
| Piccione, Gavin, Blackburn, Terrence, Tulaczyk, Slawek, Rasbury, E. Troy, Hain, Mathis P., Ibarra, Daniel E., Methner, Katharina, Tinglof, Chloe, Cheney, Brandon, Northrup, Paul, Licht, Kathy. "Subglacial precipitates record Antarctic ice sheet response to late Pleistocene millennial climate cycles." Nature Communications, vol. 13, no. 1, 2022. |
| Kukla, Tyler, Rugenstein, Jeremy K. C., Driscoll, Elizabeth, Ibarra, Daniel E., Chamberlain, C. Page. "The PATCH Lab v1.0: A database and workspace for Cenozoic terrestrial paleoclimate and environment reconstruction." American Journal of Science, vol. 322, no. 10, 2022, pp. 1124-1158. |
| T Kukla, J Rugenstein, E Driscoll, DE Ibarra, CP Chamberlain. "The PATCH Lab: A database and workspace for Cenozoic terrestrial paleoclimate and environment reconstruction." EarthArXiv, 2022. |
| Ibarra, Daniel, D'Antonio, Michael, Boyce, C. Kevin. "The preservation of cause and effect in the rock record." 2022. |
| MP D'Antonio, DE Ibarra, CK Boyce. "The preservation of cause and effect in the rock record." Paleobiology, 2022, pp. 1-11. |
| von Blanckenburg, Friedhelm, Bouchez, Julien, Willenbring, Jane K., Ibarra, Daniel E., Rugenstein, Jeremy K. Caves. "There is no Neogene denudation conundrum." Proceedings of the National Academy of Sciences, vol. 119, no. 35, 2022. |
| DE Ibarra, AG Yanchilina, MK Lloyd, KA Methner, CP Chamberlain, R Yam, A Shemesh, DA Stolper. "Triple oxygen isotope systematics of diagenetic recrystallization of diatom opal-A to opal-CT to microquartz in deep sea sediments." Geochimica et Cosmochimica Acta, 2022. |
| S Menemenlis, S White, J Lora, D Ibarra. "A proxy-model comparison for mid-Pliocene warm period hydroclimate in the Southwestern US." EarthArXiv, 2021. |
| CS Wang, Y Gao, DE Ibarra, HC Wu, PJ Wang. "An Unbroken Record of Climate During the Age of Dinosaurs." Eos, vol. 102, 2021. |
| SW Parman, AJ Evans, EG Alvarez, MB Weller, CT Reinhard, DE Ibarra, BA Anzures. "Assessing the Abundance of Super-Mercuries and Their Habitability." 2021, pp. 2. |
| G Piccione, T Blackburn, S Tulaczyk, T Rasbury, M Hain, D Ibarra, K Methner, C Tinglof, B Cheney, P Northrup, K Licht. "Calibrating Antarctic ice sheet mass loss due to millennial-scale ocean thermal forcing." Research square, 2021. |
| Y Gao, YF Gao, DE Ibarra, XJ Du, T Dong, SF Liu, CS Wang. "Clay mineralogical evidence for mid-latitude terrestrial climate change from the latest Cretaceous through the earliest Paleogene in the Songliao Basin, NE China." Cretaceous Research, 2021, pp. 104827. |
| J Jenckes, DE Ibarra, LA Munk. "Concentration-Discharge Patterns Across the Gulf of Alaska Reveal Geomorphological and Glacierization Controls on Stream Water Solute Generation and Export." ESSOAr, 2021. |
| O Pourret, J Middleton, DE Ibarra, DE Irawan, A Rouff, P Anand, A Tripati, AJV Riches, A Dossetto. "Diversity among Editorial Boards of Elements and other selected Geochemistry, Cosmochemistry, Mineralogy, and Petrology Journals." Elements, vol. 17, no. 3, 2021, pp. 152-154. |
| T Kukla, J Caves Rugenstein, DE Ibarra, M Winnick, Matthew, CA Strömberg, P Chamberlain. "Drier winters drove Cenozoic open habitat expansion in North America." ESSOAr, 2021. |
| CP David; MJ Custado; N Sekhon; D Ibarra. "Forecasting tropical ENSO-induced drought conditions using sea surface height in the Western Pacific." Research square, 2021. |
| T Kukla, DE Ibarra, JKC Rugenstein, JT Gooley, CE Mullins, S Kramer, DY Moragne, CP Chamberlain. "High-resolution stable isotope paleotopography of the John Day region, Oregon, USA." Frontiers in Earth Science, 2021. |
| O Pourret, DW Hedding, DE Ibarra, DE Irawan, H Liu, JP Tennant. "International disparities in open access practices in the Earth Sciences." European Science Editing, vol. 47, 2021. |
| JKC Rugenstein, DE Ibarra, S Zhang, NJ Planavsky, F von Blanckenburg. "Isotope mass-balance constraints preclude that mafic weathering drove Neogene cooling." Proceedings of the National Academy of Sciences, vol. 118, no. 30, 2021, pp. e2026345118. |
| D Coffey, LA Munk, DE Ibarra, KL Butler, DF Boutt, J Jenckes. "Lithium Storage and Release from Lacustrine Sediments: Implications for Lithium Enrichment and Sustainability in Continental Brines." Geochemistry, Geophysics, Geosystems, 2021. |
| H Huang, Y Gao, C Ma, MM Jones, C Zeeden, DE Ibarra, HC Wu, CS Wang. "Organic carbon burial is paced by a ~173-ka obliquity cycle in the middle to high latitudes." Science Advances, vol. 7, no. 28, 2021, pp. eabf9489. |
| Belem, Andre, Bell, Tomoko, Burdett, Heidi, Ibarra, Daniel Enrique, Kaushal, Nikita, Keenan, Benjamin, Klimaszewski-Patterson, Anna, Mette, Madelyn, Naeher, Sebastian, Onafeso, Olumide D, Panmei, Champoungam, Ratnayake, Amila Sandaruwan, Truax, Olivia. "Paleoclimatology and Paleoceanography Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science." ESSOAr, 2021. |
| DE Ibarra, T Kukla, KA Methner, A Mulch, CP Chamberlain. "Reconstructing Past Elevations from Triple Oxygen Isotopes of Lacustrine Chert: Application to the Eocene Nevadaplano, Elko Basin, Nevada, USA." Frontiers in Earth Science, 2021. |
| DE Ibarra, CPC David, PLM Tolentino. "Technical note: Evaluation and bias correction of an observation-based global runoff dataset using streamflow observations from small tropical catchments in the Philippines." Hydrology and Earth System Sciences, vol. 25, no. 5, 2021, pp. 2805-2820. |
| Y Gao, DE Ibarra, JK Caves Rugenstein, J Chen, T Kukla, K Methner, Y Gao, H Huang, Z Lin, L Zhang, D Xi, H Wu, AR Carroll, SA Graham, CP Chamberlain, C Wang. "Terrestrial climate in mid-latitude East Asia from the latest Cretaceous to the earliest Paleogene: A multiproxy record from the Songliao Basin in northeastern China." Earth-Science Reviews, 2021, pp. 103572. |
| CP Chamberlain, DE Ibarra, T Kukla, KA Methner, Y Gao. "Triple Oxygen Isotope Paleoaltimetry of Crystalline Rocks." Frontiers in Earth Science, 2021. |
| SW Parman, AJ Evans, MB Weller, CT Reinhard, DE Ibarra, EC First, BA Anzures. "Abundance and Habitability of super-Mercuries." 2020, pp. 2. |
| H Huang, Y Gao, MM Jones, HF Tao, AR Carroll, DE Ibarra, HC Wu, CS Wang. "Astronomical forcing of Middle Permian terrestrial climate recorded in a large paleolake in northwestern China." Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 550, 2020, pp. 109735. |
| Y Gao, YF Gao, DE Ibarra, XJ Du, T Dong, ZF Liu, CS Wang. "Clay mineralogical evidence for mid-latitude terrestrial climate change from the latest Cretaceous through the earliest Paleogene in the Songliao Basin, NE China." Climate of the Past Discussions, 2020, pp. 33. |
| LM Santi, AJ Arnold, DE Ibarra, CA Whicker, JA Mering, RB Lomarda, JM Lora, A Tripati. "Clumped isotope constraints on changes in latest Pleistocene hydroclimate in the northwestern Great Basin: Lake Surprise, California." GSA Bulletin, vol. 132, no. 11-12, 2020, pp. 2669-2683. |
| DR Lowe, DE Ibarra, N Drabon, CP Chamberlain. "Constraints on surface temperature 3.4 billion years ago based on triple oxygen isotopes of cherts from the Barberton Greenstone Belt, South Africa, and the problem of sample selection." American Journal of Science, vol. 320, no. 9, 2020, pp. 790-814. |
| MB Weller, AJ Evans, DE Ibarra, AV Johnson, T Kukla. "Exploring the Evolution and Habitability of Planets: Coupling of the Mantle-Atmosphere System." 2020, pp. 2. |
| M D’Antonio, DE Ibarra, CK Boyce. "Land plant evolution decreased, rather than increased, weathering rates." Geology, vol. 48, no. 1, 2020, pp. 29-33. |
| DE Penman, JK Caves Rugenstein, DE Ibarra, MJ Winnick. "Silicate weathering as a feedback and forcing in Earth's climate and carbon cycle." Earth-Science Reviews, vol. 209, no. 10, 2020, pp. 103298. |
| J Zhong, SL Li, DE Ibarra, Hu Ding, CQ Liu. "Solute Production and Transport Processes in Chinese Monsoonal Rivers: Implications for Global Climate Change." Global Biogeochemical Cycles, vol. 34, no. 9, 2020, pp. e2020GB006541. |
| DE Ibarra, CPC David, PLM Tolentino. "Technical Note: Evaluation and bias correction of an observations-based global runoff dataset using historical streamflow observations from small tropical catchments in the Philippines." Hydrology and Earth System Sciences Discussions, 2020, pp. 18. |
| CP Chamberlain, DE Ibarra, MK Lloyd, T Kukla, D Sjostrom, Y Gao, ZD Sharp. "Triple oxygen isotopes of meteoric hydrothermal systems – implications for palaeoaltimetry." Geochemical Perspectives Letters, vol. 15, 2020, pp. 6-9. |
| T Narock, EB Goldstein, CA-L Jackson, AA Bubeck, AML Enright, JI Farquharson, A Fernández, D Fernández-Blanco, S Girardclos, DE Ibarra, SK Lengger, AW Mackay, V Venema, B Whitehead, and J-P Ampuero. "Earth Science Is Ready for Preprints." Eos, vol. 100, 2019. |
| JL Oster and DE Ibarra. "Glacial hydroclimate of western North America: insights from proxy-model comparison and implications for Lake Bonneville." Utah Geological Survey Miscellaneous Publications, 2019. |
| DE Ibarra, JL Oster, MJ Winnick, JK Caves Rugenstein, MP Byrne, CP Chamberlain. "Lake area constraints on past hydroclimate in the western United States: Application to Pleistocene Lake Bonneville." Utah Geological Survey Miscellaneous Publications, 2019. |
| L Santi, A Arnold, DE Ibarra, C Whicker, J Mering, CG Oviatt, AE Tripati. "Lake Level Fluctuations in the Northern Great Basin for the Last 25,000 years in Exploring Ends of Eras in the eastern Mojave Desert." 2019, pp. 176-186. |
| DE Ibarra, JK Caves Rugenstein, A Bachan, A Baresch, KV Lau, DL Thomas, JE Lee, CK Boyce, CP Chamberlain. "Modeling the consequences of land plant evolution on silicate weathering." American Journal of Science, vol. 319, 2019, pp. 1-43. |
| JK Caves Rugenstein, DE Ibarra, F von Blanckenburg. "Neogene cooling driven by land surface reactivity rather than increased weathering fluxes." Nature, vol. 571, 2019, pp. 99-102. |
| JM Lora, DE Ibarra. "The North American hydrologic cycle through the last deglaciation." Quaternary Science Reviews, vol. 226, 2019, pp. 105991. |
| TJ Kukla, MJ Winnick, K Maher, DE Ibarra, CP Chamberlain. "The sensitivity of terrestrial δ18O gradients to hydroclimate evolution." Journal of Geophysical Research: Atmospheres, vol. 124, no. 2, 2019, pp. 563-582. |
| MM Jones, DE Ibarra, Y Gao, BB Sageman, D Selby, CP Chamberlain, SA Graham. "Evaluating Late Cretaceous OAEs and the influence of marine incursions on organic carbon burial in an expansive East Asian paleo-lake." Earth and Planetary Science Letters, vol. 484, 2018, pp. 41-52. |
| DE Ibarra. "PALEOCLIMATE CONSTRAINTS ON TERRESTRIAL HYDROCLIMATE, SILICATE WEATHERING, AND THE CARBON CYCLE." [], 2018. |
| NW Hermann, JL Oster, DE Ibarra. "Spatial Patterns and Driving Mechanisms of Mid-Holocene Hydroclimate in Western North America." Journal of Quaternary Science, vol. 33, no. 4, 2018, pp. 421-434. |
| AE Egger, DE Ibarra, R Weldon, RM Langridge, B Marion, J Hall. "The influence of pluvial lake cycles on earthquake recurrence in the northwestern Basin and Range, USA." vol. 536, 2018, pp. 28. |
| DE Ibarra, JL Oster, MJ Winnick, JK Caves Rugenstein, MP Byrne, CP Chamberlain. "Warm and cold wet-states in the western United States during the Pliocene-Pleistocene." Geology, vol. 46, no. 4, 2018, pp. 355-358. |
| DE Ibarra, S Moon, JK Caves, CP Chamberlain, K Maher. "Concentration-discharge patterns of weathering products from global rivers." Acta Geochemica, vol. 36, no. 3, 2017, pp. 405-409. |
| Y Tong, DE Ibarra, JK Caves, T Mukerji, SA Graham. "Constraining basin thermal history and petroleum generation using paleoclimate data in the Piceance Basin, Colorado." Basin Research, vol. 29, no. 4, 2017, pp. 542-553. |
| AS Wymore, RL Brereton, DE Ibarra, K Maher, WH McDowell. "Critical zone structure controls concentration-discharge relationships and solute generation in forested tropical montane watersheds." Water Resources Research, vol. 53, no. 7, 2017, pp. 6279-6295. |
| JK Caves, BU Bayshashov, A Zhamangara, AJ Ritch, DE Ibarra, DJ Sjostrom, HT Mix, MJ Winnick, CP Chamberlain. "Late Miocene uplift of the Tian Shan and Altai and reorganization of Central Asia climate." GSA Today, vol. 17, no. 2, 2017, pp. 19-26. |
| HT Mix, DE Ibarra, A Mulch, SA Graham, CP Chamberlain. "A hot and high Eocene Sierra Nevada, Geological Society of America Bulletin." Geological Society of America Bulletin, vol. 128, no. 3-4, 2016, pp. 531-542. |
| DE Ibarra, JK Caves, S Moon, DL Thomas, J Hartmann, CP Chamberlain, K Maher. "Differential weathering of basaltic and granitic catchments from concentration-discharge relationships." Geochimica et Cosmochimica Acta, vol. 190, 2016, pp. 265-293. |
| Y Gao, DE Ibarra, JK Caves, CS Wang, CM Huang, CP Chamberlain, SA Graham, HC Wu. "Mid-latitude terrestrial climate of East Asia linked to global climate in the Late Cretaceous: REPLY." Geology, vol. 44, no. 2, 2016, pp. e379. |
| JK Caves, DY Moragne, DE Ibarra, BU Bayshashov, Y Gao, MM Jones, A Zhamangara, AV Arzhannikova, SG Arzhannikov, CP Chamberlain. "The Neogene de-greening of Central Asia." Geology, vol. 44, no. 11, 2016, pp. 887-890. |
| Y Gao, CS Wang, ZF Liu, XJ Du, DE Ibarra. "Diagenetic and paleoenvironmental controls on Late Cretaceous clay minerals in the Songliao Basin, northeast China." Clays and Clay Minerals, vol. 63, no. 6, 2015, pp. 469-484. |
| Y Gao, DE Ibarra, CS Wang, JK Caves, CP Chamberlain, SA Graham, HC Wu. "Mid-latitude terrestrial climate of East Asia linked to global climate in the Late Cretaceous, Geology." Geology, vol. 43, no. 4, 2015, pp. 287-290. |
| DE Ibarra and CP Chamberlain. "Quantifying closed-basin lake temperature and hydrology by inversion of oxygen isotope and trace element paleoclimate records." American Journal of Science, vol. 315, no. 9, 2015, pp. 781-808. |
| F von Blanckenburg, J Bouchez, DE Ibarra, K Maher, K. "Stable runoff and weathering fluxes into the oceans over Quaternary climate cycles." Nature Geoscience, vol. 8, no. 7, 2015, pp. 538-542. |
| JL Oster, DE Ibarra, MJ Winnick, K Maher. "Steering of westerly storms over western North America at the Last Glacial Maximum." Nature Geoscience, vol. 8, no. 3, 2015, pp. 201-205. |
| DE Ibarra, AE Egger, and K Maher. "The late Pleistocene pluvial history of Surprise Valley, CA." Quaternary International, 2015, pp. 137. |
| DE Ibarra, AE Egger, KL Weaver, CR Harris, K Maher. "Rise and fall of late Pleistocene pluvial lakes in response to reduced evaporation and precipitation: Evidence from Lake Surprise, California." Geological Society of America Bulletin, vol. 126, no. 11-12, 2014, pp. 1387-1415. |
| K Maher, DE Ibarra, JL Oster, DM Miller, JL Redwine, MC Reheis, JH Harden. "Uranium isotopes in soils as a proxy for past infiltration and precipitation across the western United States." American Journal of Science, vol. 314, no. 4, 2014, pp. 821-857. |
| DE Ibarra. "APPLYING URANIUM-SERIES ISOTOPE GEOCHEMISTRY AND GEOCHRONOLOGY TO GREAT BASIN PLEISTOCENE PALEOHYDROLOGY." [], 2013, pp. 158. |
| JL Oster, K Maher and DE Ibarra. "Uranium isotopic variations in modern soils and dated soil minerals: calibrating a potential paleo-rainfall proxy." Quaternary International, 2013, pp. 239. |
| JL Oster, DE Ibarra, CR Harris, K Maher. "Influence of eolian deposition and rainfall on the U-isotopic composition of soil water and soil minerals." Geochimica et Cosmochimica Acta, vol. 88, 2012, pp. 146-166. |
My research interests include:
I am a geochemist and climate scientist working on the water and carbon cycles in terrestrial environments. My work includes studying the response of past and present terrestrial landscapes in the low- to mid-latitudes to changes in climate using modeling approaches, geochemical measurements, and field observations. Field sites include western North America, Central Asia, China, and the Philippines. Broadly, I am interested in the role that Earth's continents play in modulating habitable surface conditions over geologic time, and in using sediments to reconstruct past changes in weathering and hydrologic fluxes over Plio-Pleistocene to Phanerozoic timescales.
Current work includes:
- Reconstructing the Plio-Pleistocene and Cenozoic water cycle in the Philippines, western United States and Tibet using speleothems, lake deposits and hydrothermal systems, including the use of triple oxygen isotopes and carbonate clumped isotopes, as well as modeling approaches.
- Quantifying weathering and nutrient fluxes from ultramafic catchments in the Philippines.
- Interrogating Cretaceous hothouse climate changes using terrestrial sediment cores in northeast China.
- Investigating the triple oxygen isotope systematics of the ocean, altered igneous rocks, and deep-sea sediments.
Grants (~$3.7m total, ~$1.3m to Ibarra group at Brown)
Active
Renewed support for paleoCAMP, a multidisciplinary summer school for graduate students in paleoclimatology, Heising-Simons Foundation, PI: J Tierney, co-PIs: DE Ibarra, KJ Anchukaitis, S Dee, A Reyes, K Johnson, 2025-2027.
Investigating Mineralogical, Geochemical and Thermodynamic Mechanisms Governing Lithium Enrichment in Lake Clay Deposits and Subsequent Release into Lithium-Rich Brine-Aquifer Systems, ISE Seed Research Award, PI: DE Ibarra, 2024-2025.
Floodplains vs. hillslopes: Informing the timing and tempo of clay formation an dorganic matter stabilization across an alpine watershed, DOE, Biological and Environmental Research, Earth and Environmental Systems Sciences Division, PIs: M Torres, E Ramos, DE Ibarra, MJ Winnick, KH Williams, 2023-2026.
Collaborative Research: RAPID: Characterizing the water isotope signature of an El Nino event for paleoclimate and hydroclimate studies, NSF Paleoclimate Program, PIs: JKC Rugenstein, DE Ibarra, 2023-2025.
Collaborative Research: Using a Combined Basin Analysis, Isotopic, and Modeling Approach to Reconstruct the LGM through Early Holocene Hydroclimate for Glacial Lake Mojave, NSF Paleo Perspectives on Present and Projected Climate Program, PIs: M Kirby, DE Ibarra, AN Daneshmand., 2023-2026.
Ice, Coral, Dust and Pollen: Multidisciplinary Approaches to Climate History, Brown University Cogut Instute for the Humanities, Collaborative Humanities Course Award. PIs: B Lander, DE Ibarra, 2023-2024.
Tropical Weathering and the Fate of Anthropogenic Carbon Emissions, IBES Research Seed Fund Multi-Investigator Research Project. PIs: DE Ibarra, S Porder, 2022-2024.
Life Beyond Earth: Determining the Habitability of Exoplanets, Brown University Seed Award, PIs: A Evans, DE Ibarra, S Parman, G Tucker, 2022-2024.
GOLD-EN: EAGER: Collaborative Research: Enhancing Asian American and Pacific Islander Participation and Belonging in the Geosciences, NSF Geoscience Opportunities for Leadership in Diversity – Expanding the Network. PIs: DE Ibarra, KV Lau, D Ho, S Legg, S Kim, J Wang, RI Rutberg, S Ying, 2021-2023.
Collaborative Research: Western U.S. hydroclimate during the Last Interglacial: developing proxy records and using model intercomparison to glimpse the future, NSF Paleo Perspectives on Climate Change Program. PIs: JL Oster, DE Ibarra, and WD Sharp, 2021-2025.
PaleoCAMP (Paleoclimate training in Climate Archives, Models, and Proxies): A multidisciplinary summer school for graduate students in paleoclimatology, Heising-Simons Foundation, PI: J Tierney, co-PIs: DE Ibarra, KJ Anchukaitis, T Bhattacharya, K Johnson, 2021-2024.
Completed
Utilizing Stalagmites from the Philippines (USPS):Quantifying and understanding interannual hydroclimate variability in the Philippines through cave monitoring and stalagmite analyses, National Cave and Karst Research Institute (NCKRI) National Seed Grants Program. PIs: DE Ibarra, N Sekhon, 2021-2022.
Acquisition of a continuous flow isotope ratio mass spectrometer (IRMS) system for the Organic Geochemistry Core Facility at Brown University, NSF Earth Sciences: Instrumentation and Facilities, PI: Y Huang, co-PIs: DE Ibarra, S Clemens, T Herbert, J Russell, 2020-2022
Balik Scientist Program, Short-Term Category, Department of Science and Technology, Republic of the Philippines, 2018-2019
Fellowships
Miller Postdoctoral Fellowship, Miller Institute for Basic Research in Science, University of California, Berkeley, Reconstructing Water Cycle Changes in the American West, 2019-2021
University of California President’s Postdoctoral Fellowship Program, Climate, Weathering, and Erosion: How have glacial cycles influenced global sediment transport? 2019-2021
Invited Seminars (^=virtual)
2025 (all upcoming): Yale University, Duke University, Massachusetts Institute of Technology
2024: Stanford University
2023: ^University of Southern California; Washington University; Syracuse University; UMass Amherst; University of Utah; Utah State University; University of Kansas; Woods Hole Oceanographic Institute (Steinbach Visiting Scholar); Northwestern University.
2022: ^University of Minnesota Duluth (Darwin Day Lecture); ^Colorado College; ^University of Texas at Arlington; ^James Madison University; ^Rutgers University - Newark; Skidmore College (Strock Lecture); ^University of Montana; ^Yale University (2x); University of Connecticut; Massachusetts Institute of Technology; Penn State; Columbia University/Lamont–Doherty Earth Observatory.
2021: ^China University of Geosciences, ^Institut de Physique du Globe de Paris, ^University of California, Davis, ^University of Texas, Austin, ^University of Nevada, Reno; ^Boston College; ^Caltech; ^University of Göttingen; Dartmouth College.
2020: University of California, Berkeley (Geography); University of Washington; ^University of California, Berkeley (Integrated Biology/UC Museum of Paleontology); ^University of Queensland; ^University of California, Santa Cruz; ^Yale University (2x); ^University of Wisconsin-Madison (2x); ^University of New Mexico.
2019: University of the Philippines Diliman (National Institute of Geological Sciences (2x) and Institute of Environmental Science and Meteorology (1x)); University of Alaska, Anchorage; University of Arizona; USGS Menlo Park.
2018: Virginia Tech; Brown University; University of California, Los Angeles (Geochemistry Seminar); Vanderbilt University; San Francisco State University; Stanford University (Atmosphere, Ocean and Climate Dynamics Seminar).
2017: University of California, Berkeley (Isotope Geochemistry Seminar); University of California, Los Angeles (Tectonics Seminar).
2016: GFZ Potsdam; Stanford University (Sedimentary Geology Seminar).
2015: San Jose State University; China University of Geosciences, Beijing.
Invited Conference Talks and Keynotes
2024: AGU Fall Meeting; GSA Connects; 2023: Rocky Mountain Geobiology Symposium; American Institute of Chemical Engineers; American Geophysical Union; 2022: American Quaternary Association; 21st International Sedimentological Congress; GSA Annual Meeting (2x); 2020: Goldschmidt; 2019: EGU General Assembly; Goldschmidt; GSA Annual Meeting; 2018: Lake Bonneville Geologic Conference, Utah Geological Survey; 2017: AGU Fall Meeting; 2016: AGU Fall Meeting; GSA Annual Meeting
For a complete list of conference abstracts, presentations and other work: https://sites.brown.edu/ibarra-lab/
| Year | Degree | Institution |
|---|---|---|
| 2018 | PhD | Stanford University |
| 2014 | MS | Stanford University |
| 2012 | BS | Stanford University |
| Postdoctoral Scholar – Fellow, Miller Institute Research Fellow and UC President’s Postdoctoral Fellow | University of California, Berkeley, Earth and Planetary Science | 2019-2021 | |
| Postdoc Affiliate | Lawrence Berkeley National Laboratory, Earth and Environmental Sciences | 2019-2021 | |
| Postdoctoral Research Fellow | Stanford Unviersity, Geological Sciences | 2018-2019 |
Graduate School Faculty Award for Advising and Mentoring, Brown University, 2024
H. Burr Steinbach Visiting Scholar, Marine Geology and Geophysics, Woods Hole Oceanographic Institute, 2023
Best Paper, European Association of Science Editors (EASE), for Pourret et al. International disparities in open access practices in the Earth Sciences, 2022
Member, Earth and Space Sciences Division, National Research Council of the Philippines, Department of Science and Technology, Republic of the Philippines, 2021
Elected Full Member, The Philippine-American Academy of Science and Engineering (PAASE), 2021
Miller Research Fellow, Miller Institute for Basic Research in Science, University of California, Berkeley, 2019
University of California President's Postdoctoral Fellow, University of California, Berkeley, 2019
National Science Foundation Earth Science Postdoctoral Fellow (NSF EAR-PF), 2019 (declined)
Balik Scientist, Department of Science and Technology, Republic of the Philippines, 2018
Graduate Student Award for Scholarly and Research Achievement, Earth System Science, Stanford University, 2018
Editor’s Citation for Excellence in Refereeing (reviews for Geophysical Research Letters in 2017), American Geophysical Union, 2018
On To The Future Diversity Program, Geological Society of America, 2013
Enhancing Diversity in Graduate Education (EDGE) Fellowship, Stanford University, 2013
Firestone Medal for Excellence in Research, Stanford University, 2012
David E. Lumley Young Scientist in Energy and Environmental Science, American Geophysical Union, 2011
Faculty Affiliate, Data Science Institute, Brown University, 2024-Present
Executive Committee, Initiative for Sustainable Energy, Brown University, 2023-Present
Advisory Board, GradMAP Phillippines, 2022-2023
Associate Editor, Frontiers in Earth Science, 2022-Present
Editorial Board, Philosophical Transactions of the Royal Society A, 2022-Present
Councilor (Paleoclimatology) for American Quaternary Association, 2022- Present
Organizer and Instructor, paleoCAMP (Paleoclimate Training in Climate Archives, Models, and Proxies) summer school, 2021-Present
Associate Editor, All Earth, 2021-Present
Member-at-Large, Diversity in the Geosciences Committee, Geological Society of America, 2021-2024
Associate Editor, American Journal of Science, 2019-Present
Community Engagement Board, California Alliance/Research Exchange for Graduate Education & The Professoriate (NSF AGEP Program), 2018-2020
Advisory Council, EarthArXiv Preprint Server, 2017-2020
Member of American Geophysical Union, Geological Society of America, Geochemical Society, European Geophysical Union, American Quaternary Association, National Association of Geoscience Teachers
On Campus Teaching:
ENVS 0070G - Historical climatology and global climate change (Fall 2022, co-taught with Natasha Sekhon; 18 students): https://sites.brown.edu/envs-0070g/
EEPS 1380 - Environmental Stable Isotopes (Spring 2023, co-taught with Yongsong Huang, 13 students; next taught Spring 2025)
EEPS 1960N - Seminar in Analytical Geochemistry (Spring 2023, co-taught with Yongsong Huang; 10 students)
EEPS 2910U - Terrestrial Paleoclimatology Seminar (Spring 2024; 10 students/postdocs)
ENVS 1917 - Ice, Coral, Dust and Pollen: Multidisciplinary Approaches to Climate History (Spring 2024, co-taught with Brian Lander; 9 students)
EEPS/ENVS 1300 - Terrestrial Biogeochemistry, Ecosystems and the Global Carbon Cycle, (Fall 2024)
Off Campus Teaching:
paleoCAMP graduate student summers school (https://paleoclimate.camp/), Board of Directors and Instructor, 2021-2027
Brown Environmental Leadership Labs: Eastern Sierras (https://precollege.brown.edu/programs/bell-program/eastern-sierras), lead instructor, Summer 2023 and 2024
Graduate Student Mentees:
Catherine A. Gagnon, 2020-Present, PhD Candidate; DOE SCGSR Recipient
Sebastian Muñoz, 2021-Present, PhD Candidate; NSF GRFP Recipient
M. Justin Custado, 2022-Present, PhD Student
Mónica Geraldes Vega, 2023-Present, PhD Student
Riley Havel, 2024-Present, PhD Student; NSF GRFP Recipient
Theodore Bobik, 2022-2024, MS
| EEPS 1300 - Terrestrial Biogeochemistry, Ecosystems and the Global Carbon Cycle |
| EEPS 1380 - Environmental Stable Isotopes |
| EEPS 1960N - Seminar in Analytical Geochemistry |
| EEPS 2910U - Terrestrial Paleoclimatology Seminar |
| ENVS 0070G - Historical Climatology and Global Climate Change |
| ENVS 1917 - Ice, Coral, Dust and Pollen: Multidisciplinary Approaches to Climate History |
