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College of Arts and Sciences


Faculty and Staff

Robert Thunell

Title: Carolina Distinguished Professor
Senior Associate Dean for Natural Sciences
Department: It is with immeasurable sadness that we inform you of the passing of Bob Thunell from cancer on Monday, July 30th. Bob touched the lives of countless people inside and outside the walls of this university and will be greatly missed. He was surrounded by his loved ones at the time of his passing. Please direct any work/lab related questions or comments to Eric Tappa (tappa@geol.sc.edu 803.394.8226). Personal tributes or rememberances can be sent directly to his email (thunell@geol.sc.edu) where his family will receive them. You may also post a comment on this guest book: https://www.legacy.com/obituaries/thestate/obituary.aspx?n=robert-thunell&pid=189760608
College of Arts and Sciences
Email: thunell@geol.sc.edu
Phone: 803 777-0525
Office: EWS, Room 514
Resources: Curriculum Vitae [pdf]
School of the Earth, Ocean and Environment

Education

  • A.B., 1973 Brown University
  • M.S., 1975, Ph. D., 1978, University of Rhode Island
  • Postdoctoral Fellow, 1978-1979, Woods Hole Oceanographic Institution

Specialization

  • Biogeochemistry & Geochemistry
  • Climate Change
  • Oceanography

Research

Reconstructing paleoceanographic and paleoclimatic conditions using deep sea sediments; measuring the production and flux of sediments in the ocean; calibration of paleoclimate proxies.

Publications

Tems, C., Berelson, W., Thunell, R., Tappa, E., Xiaomei, X., Khider, D., Lund, S., and Gonzalrz-Yajimovich, O., 2016. Sedimentary δ15N reveal decadal frequency fluctuations in the eastern tropical north Pacific oxygen minimum zone during the last 1200 years, Paleoceanography 31, doi:10.1002/2015PA002904.

Raven, M., Sessions, A., Adkins, J., and Thunell, R., 2016. Rapid organic matter sulfurization in sinking particles from the Cariaco Basin water column, Geochimica Cosmochimica Acta 190, 175-190

Gibson, K., Thunell, R., Machain-Castillo, M., Fehrenbacher, J, Spero, H., Wejnert, K, Nava-Fernandez, X., and Tappa, E., 2016. Evaluating controls on planktonic foraminiferal geochemistry in the Eastern Tropical North Pacific, Earth and Planetary Science Letters 452, 90-103.

Osborne, E., Thunell, R., Marshall, B., Holm, J., Tappa, E., Benitez-Nelson, C., Cai, W., and Chen, B., 2016. Calcification of the planktonic foraminifera Globigerina bulloides and carbonate ion concentration: Results from the Santa Barbara Basin, Paleoceanography 31, doi.10.1002/2016PA002933.

Gibson, K., Thunell, R., Tappa, E., Peterson, L., and McConnell, M., 2015. The influence of rapid, millennial-scale climate change on nitrogen isotope dynamics of the Cariaco Basin during Marine Isotope Stage 3, Paleoceanography 30, 253-268, DOI: 10.1002/2014PA002684.

Pinckney, J., Benitez-Nelson, C., Thunell, R., Muller-Karger, F., Lorenzoni, L., Troccoli, L., Varela, R., 2015. Phytoplankton community structure and depth distribution changes in the Cariaco Basin between 1996 and 2010. Deep-Sea Research 101. 27-37.

Marshall, B., Thunell, R., Spero, H., Henehan, M., Lorenzoni, L., and Astor, Y., 2015. Morphometric and stable isotope differentiation of Orbulina universa morphotypes from the Cariaco Basin, Venezuela, Marine Micropaleontology 120, 46-64.

Calvert, S., Piper, D., Thunell, R., and Astor, Y., 2015. Elemental settling and burial fluxes in the Cariaco Basin, Marine Chemistry 177, 607-629

Marshall, B., Thunell, R., Henehan, M., Astor, Y., and Wejnert, K., 2013. Planktonic foraminiferal area density as a proxy for carbonate ion concentration: A calibration study using the Cariaco Basin ocean time series, Paleoceanography 28, 363-376, doi: 10.1002/paleo.20034.

Wejnert, K., Thunell, R., and Astor, Y., 2013. Comparison of species-specific oxygen isotope paleotemperature equations: Sensitivity analysis using planktonic foramifera from the Cariaco Basin, Venezuela, Marine Microplaeontology 101, 76-88.

Scranton, M., Taylor, G., Thunell, R., Benitez-Nelson, C., Muller-Karger, F., Fanning, K., Lorenzoni, L., Montes, E., Varella, R. and Astor, Y., 2014. Interannual to subdecadal variability in the nutrient geochemistry of the Cariaco Basin, Oceanography 27, 148-159

Pichevin, L., Ganeshram, R., Gelbert, W., Thunell, R., and Hinton, R., 2014. Silica burial enhanced by iron limitation in oceanic upwelling regions, Nature Geoscience 7, 541-546.

Deutsch, C., Berelson, W., Thunell, R., and others, 2014. Centennial changes in North Pacific anoxia linked to tropical trade winds, Science 345, 665-668.

Montes, E., Altabet, M., Muller-Karger, F., Scranton, M., Thunell., R., Benitez-Nelson, C., Lorenzoni, L., and Astor, Y., 2013. Biogenic nitrogen gas production at the oxic-anoxic interface in the Cariaco Basin, Vemezuela, Biogeosciences 10, 267-269

Krause, J., Brzezinski, M., Siegel, D., and Thunell, R., 2013. Biogenic silica standing stock and export in the Santa Barbara Channel ecosystem, Journal of Geophysical Research: Oceans 118, 736-749.

Turich, C., Schouten, H., Thunell, R., Varela, R., Astor, Y. and Wakeham, S., 2013. Comparison of TEX86 and temperature proxies in sinking particles in the Cariaco Basin, Deep-Sea Research 78, 115-133.

Montes, E., Thunell, R., Muller-Karger, F., Tappa, E., Lorenzoni, L., Troccoli, L., Astor, Y. and Varela, R., 2013. Sources of δ15N variability in sinking particulate nitrogen in the Cariaco Basin, Venezuela, Deep Sea Research II, 93, 96-107..

Astor, Y., Lorenzoni, L., Thunell, R., Varela, R., Muller-Karger, F., Troccoli, L., Taylor, G., Scranton, M., Tappa, E., and Rueda, D., 2013 Interannual variability in sea surface temperature and fCO2 changes in the Cariaco Basin, Deep Sea Research II, 93, 33-43.

Wurtzel, J., Black, D., Thunell, R., Peterson, L., Tappa, E., and Rahman, S., 2013. Mechanisms of southern Caribbean SST variability over the last two millennia, Geophysical research Letters 40, 1-5, doi:10.1002/2013GL058458.

Marshall, B., Thunell, R., Henehan, M., Astor, Y., and Wejnert, K., 2013. Planktonic foraminiferal area density as a proxy for carbonate ion concentration: A calibration study using the Cariaco Basin ocean time series, Paleoceanography 28, 363-376, doi: 10.1002/paleo.20034.

Wejnert, K., Thunell, R., and Astor, Y., 2013. Comparison of species-specific oxygen isotope paleotemperature equations: Sensitivity analysis using planktonic foramifera from the Cariaco Basin, Venezuela, Marine Microplaeontology 101, 76-88.

Scranton, M., Taylor, G., Thunell, R., Benitez-Nelson, C., Muller-Karger, F., Fanning, K., Lorenzoni, L., Montes, E., Varella, R. and Astor, Y., 2014. Interannual to subdecadal variability in the nutrient geochemistry of the Cariaco Basin, Oceanography 27, 148-159

Montes, E., Muller-Karger, F., Thunell, R. and others, 2012. Vertical fluxes of particulate biogenic material through the euphotic and twilight zones in the Cariaco Basin, Venezuela, Deep Sea Research 67, 73-84

Hertzberg, J., Black, D., Peterson, L., Thunell, R., and Haug, G., 2012. Decadal- to centennial-scale tropical Atlantic climate variability across a Dansgaard-Oeschger cycle, Paleoceanography 27, PA3218, doi:10.1029/2011PA002251.

Ren, H., Sigman, D., Thunell, R and Prokopenko, M., 2012. Nitrogen isotopic composition of planktonic foraminifera from the modern ocean and recent sediments, Limnology and Oceanography 57, 1011-1024.

Cronin, T., Rayburn, J., Guilbault, J., Thunell, R. and Franzi, D., 2012. Stable isotope evidence for glacial lake drainage through the St. Lawrence Estuary, eastern Canada, ~ 13.1-12.9 ka, Quaternary International 260, 55-65.

Pichevin, L., Ganeshram, R., Reynolds, B., Prahl, F., Pedersen, T., Thunell, R., and McClymont, E., 2012. Silicic acid biogeochemistry in the Gulf of California: Insights from sedimentary Si isotopes. Paleoceanography 27, PA2201, doi: 10.1029/2011PA002237..

McClymont, E., R. Ganeshram, L. Pichevin, H. Talbot, B. van Dongen, R. Thunell, A. Haywood, J. Singarayer and P. Valdes, 2012. Sea-surface temperature records of Termination 1 in the Gulf of California: challenges for seasonal and inter-annual analogues of tropical Pacific climate change, Paleoceanpgraphy 27, PA2202, doi:10.1029/2011PA002226.