Geochemistry

The Geochemistry faculty study a wide range of processes and interactions, including products of large-scale Earth differentiation, such as the composition, evolution and age of the mantle and core, the formation and evolution of oceanic and continental crust, interactions between the geochemical environment (soil, water, air) and human health, fundamental questions involving the oceans and continental water systems, global geochemical cycles involving the atmosphere, oceans and Earth's interior, natural and engineered methods for carbon capture and storage, and using a wide range of geochemical archives to understand how and why the ocean and climate have changed at timescales ranging from seasons to millions of years. The faculty has developed strong collaborations with Columbia University engineers, biologists, public health researchers and American Museum of Natural History petrologists, planetary geologists and paleontologists.

Robert F. Anderson
Personal Information
Robert
F.
Anderson
Ewing Lamont Research Professor
Lamont-Doherty Earth Observatory
Geochemistry
Adjunct Professor
Earth and Environmental Sciences
Contact Information
231 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8508

Fax: 

(845) 365-8155

Fields of interest: 

Chemical Oceanography, Marine Biogeochemistry, Paleoclimatology

CHEMICAL OCEANOGRAPHY, I am involved in planning an international program to study the marine biogeochemical cycles of trace elements and isotopes, known as GEOTRACES. GEOTRACES will study trace elements that serve as essential micronutrients for marine organisms, trace elements and isotopes that serve as proxies for past ocean conditions, and radionuclides that allow us to derive rates of processes of interest to oceanographers, such as fluxes of particulate oganic carbon exported from surface waters.

MARINE BIOGEOCHEMISTRY, I am interested in the ocean carbon cycle and its sensitivity to global change. This interest spans a range of topics, from climate-related changes in the ocean's carbon cycle in the past, associated with changes in ocean circulation and marine ecosystems, to understanding the fluxes of carbon in the modern ocean, to predicting the ocean's response to anticipated global warming, and the implications for the ocean's uptake of fossil fuel CO2. Of particular interest is the Southern Ocean, around Antarctica, where deep waters exchange carbon dioxide andother gases with the atmosphere, and where ecosystems are particularly sensitive to perturbations in ways that may impact the ocean's carbon cycle.

PALEOCLIMATOLOGY, My interest in paleoclimate is, in a way, an application of the principles learned through the study of modern ocean processes. My main interests are in understanding climate related changes in ocean circulation and in marine ecosystems (both ecosystem structure and biological productivity) across glacial-interglacial cycles, as well as during events of shorter duration (i.e., abrupt climate change). Much of my effort is focused on developing, testing and validating (or rejecting!) methods used in paleoceanography.

 

PDF files of three recent papers that discuss the end of the last ice age can be downloaded here:

Anderson et al., Deglacial CO2, Science, 2009

Denton et al., The last glacial termination, Science 2010

Uncorking the Southern Ocean's Vintage CO2provides a brief comparison to two leading hypotheses to expain the ocean's release of vast quantities of carbon dioxide as the last ice age ended.  These hypotheses involve changes in ocean circulation (bipolar seewaw) and changes in global wind patterns (the "wind hypothesis").  

Education
Ph.D. Chemical Oceanography
Massachusetts Institute of Technology/ Woods Hole Oceanographic Institution
1981
B.S. Oceanography and Chemistry (double major)
University of Washington
1975
Christopher Hayes (PhD 2013)
Selected Publications:
Using the natural spatial pattern of marine productivity in the Subarctic North Pacific to evaluate paleoproductivity proxies, Serno, S.; Winckler, G; Anderson, R.F.; Hayes, C.T.; Ren, H.; Gersonde, R.; Haug, G.H. Paleoceanography, Volume: 29, Issue: 5 p.: 438-453 (2014) 10.1002/2013PA002594
Eolian dust input to the Subarctic North Pacific, Serno, S.; Winckler, G.; Anderson, R.F.; Hayes, C.T.; McGee, D.; Machalett, B.; Ren, H.; Straub, S.M.; Gersonde, R.; Haug, G.H. Earth and Planetary Science Letters, Volume: 387 p.: 252-263 (2014)
Biogeography in Pa-231/Th-230 ratios and a balanced Pa-231 budget for the Pacific Ocean, Hayes, C.T.; Anderson, R.F.; Fleisher, M.Q.; Serno, S.; Winckler, G.; Gersonde, R. Earth and Planetary Science Letters, Volume: 391 p.: 307-318 (2014)
GEOTRACES: Changing the way we explore ocean chemistry, Anderson, R F; Mawji, E; Cutter G A; Measures C I; Jeandel C. Oceanography, Volume: 27 p.: 50-61 (2014)
Deep ocean carbonate chemistry and glacial-interglacial atmospheric CO2 changes, Yu, J; Anderson, R F; Rohling, E. Oceanography, Volume: 27 p.: 16-25 (2014)
Iron fertilization of the Subantarctic Ocean during the Last Ice Age, Martinez-Garcia, A; Sigman, D M; Ren, H; Anderson, R F; Straub, M; Hodell, D A; Jaccard, S L; Eglinton, T I; Haug, G H. Science, Volume: 343 p.: 1347-1350 (2014)
Two Modes of Change in Southern Ocean Productivity Over the Past Million Years, Jaccard, S. L.; Hayes, C. T.; Martinez-Garcia, A.; Hodell, D. A.; Anderson, R. F.; Sigman, D. M.; Haug, G. H. Science, Volume: 339 (2013) 10.1126/science.1227545
Quantifying lithogenic inputs to the North Pacific Ocean using the long-lived thorium isotopes, Hayes, C.T.; Anderson, R.F.; Fleisher, M.Q.; Serno, S.; Winckler, G.; Gersonde, R. Earth and Planetary Science Letters, Volume: 383 p.: 16-25 (2013)
A new perspective on boundary scavenging in the North Pacific Ocean, Hayes, C T; Anderson, R F; Jaccard, S L; François, R; Fleisher, M Q; Soon, M; Gersonde, R. Earth and Planetary Science Letters, Volume: 369-370 p.: 86-97 (2013)
Responses of the deep ocean carbonate system to carbon reorganization during the Last Glacial interglacial cycle, Yu, J; Anderson, R F; Jin, Z; Rae, J W B; Opdyke, B N; Eggins, S M. Quaternary Science Reviews, Volume: 76 p.: 39-52 (2013)
Analysis of 232Th, 230Th and 231Pa in seawater: Lessons learned during GEOTRACES Intercalibration, Auro, M; Robinson, L F; Burke, A; Bradtmiller, L I; Fleisher, M Q; Anderson, R F. Limnology and Oceanography: Methods, Volume: 10 p.: 464-474 (2012)
The mystery of the missing deglacial carbonate preservation maximum, Mekik, F A; Anderson, R F; Loubere, P; François, R; Richaud, M Quaternary Science Reviews, Volume: 39 p.: 60-72 (2012)
GEOTRACES Intercalibration of 230Th, 232Th, 231Pa and prospects for 10Be, Anderson, R F; Fleisher, M Q; Robinson, L F; Edwards, R L; Hoff, J A; Moran, S B; Rutgers van der Loeff, M; Thomas, A L; Roy-Barman, M; François, R. Limnology and Oceanography: Methods (2012)
The Zn abundance and isotopic composition of diatom frustules, a proxy for Zn availability in ocean surface seawater, Andersen, M. B.; Vance, D.; Archer, C.; Anderson, R. F.; Ellwood, M. J.; Allen, C. S. Earth and Planetary Science Letters, Volume: 301 p.: 137-145 (2011)
Opal accumulation rates in the equatorial Pacific and mechanisms of deglaciation, Hayes, C T; Anderson, R F; Fleisher; M Q . Paleoceanography, Volume: 25 p.: PA1207 doi:101029/2010PA002008 (2011)
The last glacial termination, Denton, G. H.; Anderson, R. F.; Toggweiler, J. R.; Edwards, R. L.; Schaefer, J. M.; Putnam, A. E Science, Volume: 328 p.: 1652-1656 (2010)
A deeper respired carbon pool in the glacial equatorial Pacific Ocean, Bradtmiller, L. I.; Anderson, R. F.; Sachs, J. P.; Fleisher, M. Q. Earth and Planetary Science Letters, Volume: 299 p.: 417-425 (2010)
Sedimentary opal records in the Eastern Equatorial Pacific: It’s not all about leakage, Dubois, N.; Kienast, M.; Kienast, S.; Calvert, S. E.; Francois, R.; Anderson, R. F. Global Biogeochemical Cycles, Volume: 24 (2010) GB4020 doi:10.1029/2010GB003821
Uncorking the Southern Ocean’s Vintage CO2, Anderson, R. F.; Carr, M-E Science 05/2010, Volume: 328 p.: 1117-1118 (2010)
Wind-Driven Upwelling in the Southern Ocean and the Deglacial Rise in Atmospheric CO2, Anderson, R. F.; Ali, S.; Bradtmiller, L. I.; Nielsen, S. H. H.; Fleisher, M. Q.; Anderson, B. E.; Burckle, L. H. Science Mar 13, Volume: 323, Issue: 5920 p.: 1443-1448 (2009) DOI 10.1126/science.1167441
Comparing glacial and Holocene opal fluxes in the Pacific sector of the Southern Ocean, Bradtmiller, L I; Anderson, R F; Fleisher, M Q; Burckle, L H Paleoceanography, Volume: 24 p.: PA2214, doi (2009)
Covariant glacial-interglacial dust fluxes in the equatorial Pacific and Antarctica, Winckler, G.; Anderson, R. F.; Fleisher, M. Q.; McGee, D.; Mahowald, N. Science Apr 4, Volume: 320, Issue: 5872 p.: 93-96 (2008) DOI 10.1126/science.1150595
Modeling the particle flux effect on distribution of 230Th in the equatorial Pacific, Siddall, M.; Anderson, R.F.; Winkler, G.; Henderson, G.M.; Bradtmiller, L.I.; McGee, D.; Franzese, A.; Stocker, T.F.; Müller, S.A. Paleoceanography, Volume: 23, Issue: PA2208 (2008) 10:1020/2007PA001556
Modern CaCO3 preservation in equatorial Pacific sediments in the context of late-Pleistocene glacial cycles, Anderson, R. F.; Fleisher, M. Q.; Lao, Y.; Winckler, G. Marine Chemistry Aug 16, Volume: 111, Issue: 1-2 p.: 30-46 (2008) DOI 10.1016/j.marchem.2007.11.011
Comment on "Do geochemical estimates of sediment focusing pass the sediment test in the equatorial Pacific?' by M. Lyle et al., Francois, R.; Frank, M.; van der Loeff, M. R.; Bacon, M. P.; Geibert, W.; Kienast, S.; Anderson, R. F.; Bradtmiller, L.; Chase, Z.; Henderson, G.; Marcantonio, F.; Allen, S. E. Paleoceanography Mar 6, Volume: 22, Issue: 1 p.: - (2007) Doi 10.1029/2005pa001235
Opal burial in the equatorial Atlantic Ocean over the last 30 ka: Implications for glacial-interglacial changes in the ocean silicon cycle, Bradtmiller, L. I.; Anderson, R. F.; Fleisher, M. Q.; Burckle, L. H. Paleoceanography Dec 19, Volume: 22, Issue: 4 p.: - (2007) Doi 10.1029/2007pa001443
Diatom productivity in the equatorial Pacific Ocean from the last glacial period to the present: A test of the silicic acid leakage hypothesis, Bradtmiller, L. I.; Anderson, R. F.; Fleisher, M. Q.; Burckle, L. H. Paleoceanography Oct 13, Volume: 21, Issue: 4 p.: - (2006) Doi 10.1029/2006pa001282
Glacial-interglacial variability in the delivery of dust to the central equatorial Pacific Ocean, Anderson, R. F.; Fleisher, M. Q.; Lao, Y. Earth and Planetary Science Letters Feb 28, Volume: 242, Issue: 3-4 p.: 406-414 (2006) DOI 10.1016/j.epsl.2005.11.061
Reduced Agulhas Leakage during the Last Glacial Maximum inferred from an integrated provenance and flux study, Franzese, A. M.; Hemming, S. R.; Goldstein, S. L.; Anderson, R. F. Earth and Planetary Science Letters Oct 15, Volume: 250, Issue: 1-2 p.: 72-88 (2006) DOI 10.1016/j.epsl.2006.07.002
Equatorial Pacific productivity and dust flux during the mid-Pleistocene climate transition, Winckler, G.; Anderson, R. F.; Schlosser, P. Paleoceanography Dec 17, Volume: 20, Issue: 4 p.: - (2005) Doi 10.1029/2005pa001177
Increased productivity in the subantarctic ocean during Heinrich events, Sachs, J. P.; Anderson, R. F. Nature Apr 28, Volume: 434, Issue: 7037 p.: 1118-1121 (2005) Doi 10.1038/Nature03544
Problems with paleoproductivity proxies, Anderson, R. F.; Winckler, G. Paleoceanography Sep 20, Volume: 20, Issue: 3 p.: - (2005) Doi 10.1029/2004pa001107
Role of marine biology in glacial-interglacial CO2 cycles, Kohfeld, K. E.; Le Quere, C.; Harrison, S. P.; Anderson, R. F. Science Apr 1, Volume: 308, Issue: 5718 p.: 74-78 (2005) DOI 10.1126/science.1105375
Sr isotope evidence for sources of terrigenous sediment in the southeast Atlantic Ocean: Is there increased available Fe for enhanced glacial productivity?, Rutberg, R. L.; Goldstein, S. L.; Hemming, S. R.; Anderson, R. F. Paleoceanography Mar 30, Volume: 20, Issue: 1 p.: - (2005) Doi 10.1029/2003pa000999
Comment on "On the importance of opal, carbonate, and lithogenic clays in scavenging and fractionating Th-230, Pa-231 and Be-10 in the ocean" by S. Luo and T.-L. Ku, Chase, Z.; Anderson, R. F. Earth and Planetary Science Letters Mar 30, Volume: 220, Issue: 1-2 p.: 213-222 (2004) Doi 10.1016/S0012-821x(04)00028-7
Does interplanetary dust control 100 kyr glacial cycles?, Winckler, G.; Anderson, R. F.; Stute, M.; Schlosser, P. Quaternary Science Reviews Oct, Volume: 23, Issue: 18-19 p.: 1873-1878 (2004) DOI 10.1016/j.quascirev.2004.05.007
Radiocarbon dating of diatom-bound organic compounds, Ingalls, A. E.; Anderson, R. F.; Pearson, A. Marine Chemistry Dec 1, Volume: 92, Issue: 1-4 p.: 91-105 (2004) DOI 10.1016/j.marchem.2004.06.019
Accumulation of biogenic and lithogenic material in the Pacific sector of the Southern Ocean during the past 40,000 years, Chase, Z.; Anderson, R. F.; Fleisher, M. Q.; Kubik, P. W. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 50, Issue: 3-4 p.: 799-832 (2003) Pii S0967-0645(02)00595-7
Assessing the collection efficiency of Ross Sea sediment traps using Th-230 and Pa-231, Fleisher, M. Q.; Anderson, R. F. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 50, Issue: 3-4 p.: 693-712 (2003) Pii S0967-0645(02)00591-X
Fidelity of alkenone paleotemperatures in southern Cape Basin sediment drifts, Sachs, J. P.; Anderson, R. F. Paleoceanography Oct 15, Volume: 18, Issue: 4 p.: - (2003) Doi 10.1029/2002pa000862
Scavenging of Th-230 Pa-231 and Be-10 in the Southern Ocean (SW Pacific sector): the importance of particle flux, particle composition and advection, Chase, Z.; Anderson, R. F.; Fleisher, M. Q.; Kubik, P. W. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 50, Issue: 3-4 p.: 739-768 (2003) Pii S0967-0645(02)00593-3
The U-series toolbox for paleoceanography, Henderson, G. M.; Anderson, R. F. Uranium-Series Geochemistry, Volume: 52 p.: 493-531 (2003)
Challenges in radiocarbon dating organic carbon in opal-rich marine sediments, Zheng, Y.; Anderson, R. F.; Froelich, P. N.; Beck, W.; McNichol, A. P.; Guilderson, T. Radiocarbon, Volume: 44, Issue: 1 p.: 123-136 (2002)
The influence of particle composition and particle flux on scavenging of Th, Pa and Be in the ocean, Chase, Z.; Anderson, R. F.; Fleisher, M. Q.; Kubik, P. W. Earth and Planetary Science Letters Nov 30, Volume: 204, Issue: 1-2 p.: 215-229 (2002) Pii S0012-821x(02)00984-6
Preservation of particulate non-lithogenic uranium in marine sediments, Zheng, Y.; Anderson, R. F.; Van Geen, A.; Fleisher, M. Q. Geochimica Et Cosmochimica Acta Sep, Volume: 66, Issue: 17 p.: 3085-3092 (2002) Pii S0016-7037(01)00632-9
Remobilization of authigenic uranium in marine sediments by bioturbation, Zheng, Y.; Anderson, R. F.; Van Geen, A.; Fleisher, M. Q. Geochimica Et Cosmochimica Acta May, Volume: 66, Issue: 10 p.: 1759-1772 (2002) Pii S0016-7037(00)00886-9
Sediment focusing creates 100-ka cycles in interplanetary dust accumulation on the Ontong Java Plateau, Higgins, S. M.; Anderson, R. F.; Marcantonio, F.; Schlosser, P.; Stute, M. Earth and Planetary Science Letters Oct 15, Volume: 203, Issue: 1 p.: 383-397 (2002) Pii S0012-821x(02)00864-6
Vertical budgets for organic carbon and biogenic silica in the Pacific sector of the Southern Ocean, 1996-1998, Nelson, D. M.; Anderson, R. F.; Barber, R. T.; Brzezinski, M. A.; Buesseler, K. O.; Chase, Z.; Collier, R. W.; Dickson, M. L.; Francois, R.; Hiscock, M. R.; Honjo, S.; Marra, J.; Martin, W. R.; Sambrotto, R. N.; Sayles, F. L.; Sigmon, D. E. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 49, Issue: 9-10 p.: 1645-1674 (2002) Pii S0967-0645(02)00005-X
The Southern Ocean's biological pump during the Last Glacial Maximum, Anderson, R. F.; Chase, Z.; Fleisher, M. Q.; Sachs, J. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 49 p.: 1909-1938 (2002)
Abrupt intensification of the SW Indian Ocean monsoon during the last deglaciation: constraints from Th, Pa, and He isotopes, Marcantonio, F.; Anderson, R. F.; Higgins, S.; Fleisher, M. Q.; Stute, M.; Schlosser, P. Earth and Planetary Science Letters Jan 15, Volume: 184, Issue: 2 p.: 505-514 (2001)
Benthic remineralization and burial of biogenic SiO2, CaCO3, organic carbon, and detrital material in the Southern Ocean along a transect at 170 degrees West, Sayles, F. L.; Martin, W. R.; Chase, Z.; Anderson, R. F. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 48, Issue: 19-20 p.: 4323-4383 (2001)
Evidence from authigenic uranium for increased productivity of the glacial Subantarctic Ocean, Chase, Z.; Anderson, R. F.; Fleisher, M. Q. Paleoceanography Oct, Volume: 16, Issue: 5 p.: 468-478 (2001)
Glacial surface temperatures of the southeast Atlantic Ocean, Sachs, J. P.; Anderson, R. F.; Lehman, S. J. Science Sep 14, Volume: 293, Issue: 5537 p.: 2077-2079 (2001)
Record of seafloor CaCO3 dissolution in the central equatorial Pacific, Broecker, W. S.; Anderson, R.; Clark, E.; Fleisher, M. Geochemistry Geophysics Geosystems Jun 28, Volume: 2 p.: art. no.-2000GC000151 (2001)
Sediment focusing in the central equatorial Pacific Ocean, Marcantonio, F.; Anderson, R. F.; Higgins, S.; Stute, M.; Schlosser, P.; Kubik, P. Paleoceanography Jun, Volume: 16, Issue: 3 p.: 260-267 (2001)
Similar glacial and Holocene Southern Ocean hydrography, Matsumoto, K.; Lynch-Stieglitz, J.; Anderson, R. F. Paleoceanography Oct, Volume: 16, Issue: 5 p.: 445-454 (2001)
The US Southern Ocean Joint Global Ocean Flux Study: Volume two, Anderson, R. F.; Smith, W. O. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 48, Issue: 19-20 p.: 3883-3889 (2001)
Authigenic molybdenum formation in marine sediments: A link to pore water sulfide in the Santa Barbara Basin, Zheng, Y.; Anderson, R. F.; van Geen, A.; Kuwabara, J. Geochimica Et Cosmochimica Acta Dec, Volume: 64, Issue: 24 p.: 4165-4178 (2000)
Carbon isotopic disequilibrium in polar planktonic foraminifera and its impact on modern and Last Glacial Maximum reconstructions, Kohfeld, K. E.; Anderson, R. F.; Lynch-Stieglitz, J. Paleoceanography Feb, Volume: 15, Issue: 1 p.: 53-64 (2000)
Intensification of the northeast Pacific oxygen minimum zone during the Bolling-Allerod warm period, Zheng, Y.; van Geen, A.; Anderson, R. F.; Gardner, J. V.; Dean, W. E. Paleoceanography Oct, Volume: 15, Issue: 5 p.: 528-536 (2000)
Recent warming in a 500-year palaeotemperature record from varved sediments, Upper Soper Lake, Baffin Island, Canada, Hughen, K. A.; Overpeck, J. T.; Anderson, R. F. Holocene Jan, Volume: 10, Issue: 1 p.: 9-19 (2000)
A review of the Si cycle in the modem ocean: recent progress and missing gaps in the application of biogenic opal as a paleoproductivity proxy, Ragueneau, O.; Treguer, P.; Leynaert, A.; Anderson, R. F.; Brzezinski, M. A.; DeMaster, D. J.; Dugdale, R. C.; Dymond, J.; Fischer, G.; Francois, R.; Heinze, C.; Maier-Reimer, E.; Martin-Jezequel, V.; Nelson, D. M.; Queguiner, B. Global and Planetary Change Dec 15, Volume: 26, Issue: 4 p.: 317-365 (2000)
The US Southern Ocean Joint Global Ocean Flux Study: an introduction to AESOPS, Smith, W. O.; Anderson, R. F.; Moore, J. K.; Codispoti, L. A.; Morrison, J. M. Deep-Sea Research Part Ii-Topical Studies in Oceanography, Volume: 47, Issue: 15-16 p.: 3073-3093 (2000)
Solange Duhamel
Personal Information
Solange
Duhamel
Lamont Assistant Research Professor
Lamont-Doherty Earth Observatory
Biology and Paleo Environment
Contact Information
15 Marine Biology
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8774

Fax: 

(845) 365-8150

Fields of interest: 

Role of microorganisms as agents of biogeochemical transformations, and the reciprocal role of nutrients availability, in particular phosphorus (P), on the distribution, growth and productivity of microplankton
Education
Ph.D.
University of the Mediterranean
10/2007
Master
University of Paris 6
09/2004
Bachelor
University of Paris 6
09/2002
Benjamin Bostick
Personal Information
Benjamin
Bostick
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Geochemistry
Contact Information
431 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8659

Fax: 

(845) 365-8155

Fields of interest: 

Soils, aqueous geochemistry, sediment redox cycling, biogeochemistry, mineralogy, applications of spectroscopy in earth sciences.
Education
PhD
Stanford University
2002
MS
University of Idaho
1997
BS
University of Idaho
Steven N. Chillrud
Personal Information
Steven
N.
Chillrud
Lamont Research Professor
Lamont-Doherty Earth Observatory
Geochemistry
Contact Information
201 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8893

Fax: 

(845) 365-8155
Michael Kaplan
Personal Information
Michael
Kaplan
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Geochemistry
Contact Information
429 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8646

Fax: 

(845) 365-8155

Fields of interest: 

Glacial geology, paleoclimatology, glacier and ice sheet dynamics, geomorphology, geochronology, limnogeology, cosmogenic surface exposure dating

* Glacier and climate history of southern South America, New Zealand, Antarctica, and eastern North America. Whether past climate changes are in phase around the globe at low and high frequency timescales * Quantifying rates of landscape change in southern South America using cosmogenic nuclide measurements and understanding these changes in relation to development of the Andes

Education
B.A. summa cum laude
SUNY Buffalo
1992
M.S.
University of Maine-Orono
1994
Ph.D.
University of Colorado-Boulder
1999
Selected Publications:
Trans-pacific glacial response to the Antarctic Cold Reversal in the southern mid-latitudes, Sagredo, Esteban A.; Kaplan, Michael R.; Araya, Paola, S.; Lowell, Thomas V.; Aravena, Juan C.; Moreno, Patricio I.; Kelly, Meredith A.; Schaefer, Joerg M. Quaternary Science Reviews (2018)
Onset and Evolution of Southern Annular Mode-Like Changes at Centennial Timescale, Moreno, P. I.; Vilanova, I.; Villa-Martínez, R.; Dunbar, R. B.; Mucciarone, D. A.; Kaplan, M. R.; Garreaud, R.D.; Rojas, M.; Moy, C. M.; De Pol-Holz, R.; Lambert, F. Nature/Scientific Reports (2018)
Polar desert chronologies through quantitative measurements of salt accumulation, Graly, Joseph A.; Licht, Kathy J.; Druschel, Gregory K.; Kaplan, Michael R. Geology, AGU (2018)
The interconnected global climate system – a review of tropical-polar teleconnections, Yuan, Xiaojun; Kaplan, Michael R.; Cane, Mark Journal of Climate (2018)
Late Pleistocene glacial fluctuations in Cordillera Oriental, subtropical Andes, Martini, Mateo A.; Kaplan, Michael R.; Strelin, Jorge A.; Astini, Ricardo A.; Schaefer, Joerg M.; Caffee, Marc W.; Schwartz, Roseanne Quaternary Science Reviews (2017)
Recent climate warming and the Varas rock glacier activity, Cordillera Oriental, Central Andes of Argentina, Martinia, Mateo A.; Strelin, Jorge A.; Flores, Eliseo; Astinia, Ricardo A.; Kaplan, Michael R. GeoResJ (2017)
Regional mid-Pleistocene glaciation in central Patagonia, Hein, Andrew S.; Cogez, Antoine; Darvill, Christopher M.; Mendelova, Monika;. Kaplan, Michael R.; Herman, Frédéric; Dunai, Tibor J.; Norton, Kevin; Xu, Sheng, Marcus Christl, Marcus; Angel Rodés, Angel Quaternary Science Reviews (2017)
Glacial/interglacial changes of Southern Hemisphere wind circulation from the geochemistry of South American dust, Gili, Stefania; Gaiero, Diego M.; Goldstein, Steven L.; Chemale, Farid; Jweda, Jason; Kaplan, Michael R.; Becchio, Raúl A.; Koester, Edinei Earth and Planetary Science Letters (2017)
High particulate iron(II) content in glacially sourced dusts enhances productivity of a model diatom, Shoenfelt, Elizabeth M.; Sun, Jing; Winckler, Gisela; Kaplan, Michael R.; Borunda, Alejandra L; Farrell, Kayla R.; Moreno, Patricio I.; Gaiero, Diego M.; Recasens, Cristina; Sambrotto, Raymond N.; Bostick, Benjamin C. Science Advances (2017)
Geomorfología Y Cronología Glaciar Del Cuaternario En El Noroeste Argentino, Martini, Mateo A.; Strelin, Jorge A.; Astini, Ricardo A.; Kaplan, Michael R. Muruaga, C.M. and Grosse, P. (Eds.), Ciencias de la Tierra y Recursos Naturales del NOA. Relatorio del XX Congreso Geológico Argentino, San Miguel de Tucumán: 825-846. (2017)
East Antarctic ice sheet stability recorded in a high-elevation ice-cored moraine, Bader, Nicole A.; Licht, Kathy; Kaplan, Michael R.; Kassab, Christine; Winckler, Gisela Quaternary Science Reviews (2017)
Middle to Late Pleistocene stability of the central East Antarctic Ice Sheet at the head of Law Glacier, Kaplan, M R; Licht, K; Winckler, G; Schaefer, J M; Bader, N;, Mathieson, C; Roberts, M; Kassab, C M; Schwartz, R; Graly, J (2017)
Patagonian and southern South Atlantic view of Holocene climate, Kaplan, M.R., Schaefer, J.M., Strelin, J.A., Denton, G.H., Anderson, R.F., Vandergoes, M.J., Finkel, R.C., Schwartz, R., Travis, S.G., Garcia, J.L., Martini, M.A., Nielsen, S.H.H. Quaternary Science Reviews 2016 (2016)
Changing influence of Antarctic and Greenlandic temperature records on sea-level over the last glacial cycle, Siddall, M.; Kaplan, M.R.; Schaefer, J.M.; Putnam, A.; Kelly, M.A.; Goehring, B. Quaternary Science Reviews, Volume: 29, Issue: 3-4 p.: 410-423 (2010) 10.1016/j.quascirev.2009.11.007
A beryllium-10 production-rate for the Southern Hemisphere middle latitudes, Putnam, A E; Schaefer, J M; Vandergoes, M; Barrell, D; Kaplan, M; Goehring, B; Schwartz, R; Finkel, R; Kelley, S; Denton, G H Journal of Quaternary Geochronology (2010)
The chronology of the Last Glacial Maximum and Late-glacial events in central Argentine Patagonia, Hein, AS; Hulton, NRJ; Dunai, T; Sugden, D; Kaplan, MR; Xu, S Journal of Quaternary Geochronology (2010)
Glacier retreat in New Zealand during the Younger Dryas stadial, Kaplan, M. R.; Schaefer, J.M., Denton, G.H.; Barrell, D.J.A.; Chinn, T.J.H.; Putnam, A.E.; Andersen, B.G.; Finkel, R.C.; Schwartz, R.; Doughty, A. Nature (2010)
Surface exposure dating in the Holocene - Precise Be-10 technique for very young surfaces, Finkel, R.; Schaefer, J. M.; Barrell, D.; Brown, T. A.; Denton, G.; Kaplan, M.; Putnam, A.; Rood, D.; Schluchter, C.; Schwartz, R. Geochimica Et Cosmochimica Acta Jun, Volume: 73, Issue: 13 p.: A377-A377 (2009)
Cosmogenic dating of 'old' glacial events in Patagonia,, Hein, A. S.; Hulton, N. R. J.; Dunai, T. J.; Schnabel, C.; Kaplan, M. R.; Xu, S. Geochimica Et Cosmochimica Acta Jun, Volume: 73, Issue: 13 p.: A513-A513 (2009)
Can glacial erosion limit the extent of glaciation?, Kaplan, M. R.; Hein, A. S.; Hubbard, A.; Lax, S. M. Geomorphology Jan 15, Volume: 103, Issue: 2 p.: 172-179 (2009) DOI 10.1016/j.geomorph.2008.04.020
Renewed glacial activity during the Antarctic cold reversal and persistence of cold conditions until 11.5 ka in southwestern Patagonia, Moreno, P. I.; Kaplan, M. R.; Francois, J. P.; Villa-Martinez, R.; Moy, C. M.; Stern, C. R.; Kubik, P. W. Geology Apr, Volume: 37, Issue: 4 p.: 375-378 (2009) Doi 10.1130/G25399a.1
High-Frequency Holocene Glacier Fluctuations in New Zealand Differ from the Northern Signature, Schaefer, J. M.; Denton, G. H.; Kaplan, M.; Putnam, A.; Finkel, R. C.; Barrell, D. J. A.; Andersen, B. G.; Schwartz, R.; Mackintosh, A.; Chinn, T.; Schluchter, C. Science May 1, Volume: 324, Issue: 5927 p.: 622-625 (2009) DOI 10.1126/science.1169312
Southern mid-latitude terminations of MIS-4, the Last Glacial Maximum and the Late Glacial period in the New Zealand moraine record, Schaefer, J. M.; Kaplan, M.; Putnam, A.; Finkel, R.; Barrell, D.; Denton, G.; Schluchter, C. Geochimica Et Cosmochimica Acta Jun, Volume: 73, Issue: 13 p.: A1167-A1167 (2009)
Middle Pleistocene glaciation in Patagonia dated by cosmogenic-nuclide 2 measurements on outwash gravels, Hein, AS; Hulton, NRJ; Dunai, T; Schnabel, C; Kaplan, MR; Naylor, M; , Xu, S Earth and Planetary Science Letters, Volume: 286 p.: 184-197 (2009)
Chronologies of the LGM and its Termination in the Andes based on Surface Exposure Dating, Zech, R; Smith, J; Kaplan, M , Springer Netherlands (2009)
Climate Change in Southern South America during the last two Millennia, Moy, CM; Moreno, PI; Dunbar, RB; Francois, J-P; Kaplan, MR; Villalba, R; Haberzettle, T , Springer Netherlands (2009)
Southern Patagonian glacial chronology for the Last Glacial period and implications for Southern Ocean climate, Kaplan, M. R.; Fogwill, C. J.; Sugden, D. E.; Hulton, N.; Kubik, P. W.; Freeman, S. P. H. T. Quaternary Science Reviews Feb, Volume: 27, Issue: 3-4 p.: 284-294 (2008) DOI 10.1016/j.quascirev.2007.09.013
Glacial dynamics in southernmost South America during Marine Isotope Stage 5e to the Younger Dryas chron: a brief review with a focus on cosmogenic nuclide measurements, Kaplan, M. R.; Moreno, P. I.; Rojas, M. Journal of Quaternary Science Sep-Oct, Volume: 23, Issue: 6-7 p.: 649-658 (2008) Doi 10.1002/Jqs.1209
Climate science - A tale of two ice sheets, Siddall, M.; Kaplan, M. R. Nature Geoscience Sep, Volume: 1, Issue: 9 p.: 570-571 (2008) Doi 10.1038/Ngeo286
Cosmogenic nuclide measurements in southernmost South America and implications for landscape change, Kaplan, M. R.; Coronato, A.; Hulton, N. R. J.; Rabassa, J. O.; Kubik, P. W.; Freeman, S. P. H. T. Geomorphology Jul 1, Volume: 87, Issue: 4 p.: 284-301 (2007) DOI 10.1016/j.geomorph.2006.10.005
Major ice sheet response in eastern New England to a cold North Atlantic region, ca. 16-15 cal ka BP, Kaplan, M. R. Quaternary Research Sep, Volume: 68, Issue: 2 p.: 280-283 (2007) DOI 10.1016/j.yqres.2007.06.003
Cosmogenic nuclide surface exposure dating of boulders on last-glacial and late-glacial moraines, Lago Buenos Aires, Argentina: Interpretive strategies and paleoclimate implications, Douglass, D. C.; Singer, B. S.; Kaplan, M. R.; Mickelson, D. M.; Caffee, M. W. Quaternary Geochronology Feb, Volume: 1, Issue: 1 p.: 43-58 (2006) DOI 10.1016/j.quageo.2006.06.001
Comment on: Cosmogenic nuclide chronology of pre-last glacial maximum moraines at Lago Buenos Aires, 46 degrees S, Argentina (Quaternary Research 63/3, 2005, 301-315) - Reply, Kaplan, M. R.; Singer, B. S.; Douglass, D. C.; Ackert, R. P.; Caffee, M. W. Quaternary Research Sep, Volume: 66, Issue: 2 p.: 367-369 (2006) DOI 10.1016/j.yqres.2006.06.002
Spatial and temporal variability of Holocene temperature in the North Atlantic region, Kaplan, M. R.; Wolfe, A. P. Quaternary Research Mar, Volume: 65, Issue: 2 p.: 223-231 (2006) DOI 10.1016/j.yqres.2005.08.020
Cosmogenic nuclide chronology of pre-last glacial maximum moraines at Lago Buenos Aires, 46 degrees S, Argentina, Kaplan, M. R.; Douglass, D. C.; Singer, B. S.; Caffee, M. W. Quaternary Research May, Volume: 63, Issue: 3 p.: 301-315 (2005) DOI 10.1016/j.yqres.2004.12.003
Cosmogenic nuclide chronology of millennial-scale glacial advances during O-isotope stage 2 in Patagonia, Kaplan, M. R.; Ackert, R. P.; Singer, B. S.; Douglass, D. C.; Kurz, M. D. Geological Society of America Bulletin Mar-Apr, Volume: 116, Issue: 3-4 p.: 308-321 (2004) Doi 10.1130/B25178.1
David Walker
Personal Information
David
Walker
Higgins Professor
Earth and Environmental Sciences
Geochemistry
Contact Information
113 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 365-8658

Fax: 

(845) 365-8155

Fields of interest: 

Experimental Petrology

Examination of the chemical and physical evolution of the terrestrial planets by the methods of experimental petrology. Parallel interest in the development of new experimental techniques and new materials.

Education
AB
Oberlin
1968
AM
Harvard
1970
Ph.D.
Harvard
1972
Selected Publications:
Partitioning of molybdenum to 60 kbar along a warped Fe-FeS liquidus, Walker, D.; Li, J. Chemical Geology Feb 28, Volume: 248, Issue: 3-4 p.: 166-173 (2008) DOI 10.1016/j.chemgeo.2007.04.006
Galena stability to 26 kbar, Wheeler, K. T.; Walker, D.; Johnson, M. C. American Journal of Science Mar, Volume: 307, Issue: 3 p.: 590-611 (2007) Doi 10.2475/03.2007.02
Constraints on core formation from Pt partitioning in mafic silicate liquids at high temperatures, Cottrell, E.; Walker, D. Geochimica Et Cosmochimica Acta Mar 15, Volume: 70, Issue: 6 p.: 1565-1580 (2006) DOI 10.1016/j.gca.2005.11.021
Core/mantle-like interactions in an electric field, Kavner, A.; Walker, D. Earth and Planetary Science Letters Aug 15, Volume: 248, Issue: 1-2 p.: 316-329 (2006) DOI 10.1016/j.epsl.2006.05.033
Experimental partitioning of uranium between liquid iron sulfide and liquid silicate: Implications for radioactivity in the Earth's core, Wheeler, K. T.; Walker, D.; Fei, Y. W.; Minarik, W. G.; McDonough, W. F. Geochimica Et Cosmochimica Acta Mar 15, Volume: 70, Issue: 6 p.: 1537-1547 (2006) DOI 10.1016/j.gca.2005.11.023
Core-mantle chemical issues, Walker, D. Canadian Mineralogist Oct, Volume: 43 p.: 1553-1564 (2005)
Halite-sylvite thermoconsolution, Walker, D.; Verma, P. K.; Cranswick, L. M. D.; Clark, S. M.; Jones, R. L.; Buhre, S. American Mineralogist Jan, Volume: 90, Issue: 1 p.: 229-239 (2005)
Experimental partitioning of Tc, Mo, Ru, and Re between solid and liquid during crystallization in Fe-Ni-S, Lazar, C.; Walker, D.; Walker, R. J. Geochimica Et Cosmochimica Acta Feb, Volume: 68, Issue: 3 p.: 643-651 (2004)
Halite-sylvite thermoelasticity, Walker, D.; Verma, P. K.; Cranswick, L. M. D.; Jones, R. L.; Clark, S. M.; Buhre, S. American Mineralogist Jan, Volume: 89, Issue: 1 p.: 204-210 (2004)
Thermal equations of state for B1 and B2 KCl, Walker, D.; Cranswick, L. M. D.; Verma, P. K.; Clark, S. M.; Buhre, S. American Mineralogist Jul, Volume: 87, Issue: 7 p.: 805-812 (2002)
Synthesis and thermal decomposition of tetragonal RbClO4 and volume of fluid O-2 from 2 to 9 GPa, Walker, D.; Hughes, G.; Cranswick, L. M. D.; Clark, S. M.; Buhre, S. Geochemistry Geophysics Geosystems Oct 11, Volume: 2 p.: art. no.-2001GC000154 (2001)
Core participation in mantle geochemistry: Geochemical Society Ingerson Lecture, GSA Denver, October 1999, Walker, D. Geochimica Et Cosmochimica Acta Sep, Volume: 64, Issue: 17 p.: 2897-2911 (2000)
Rapid methods for the calibration of solid-state detectors, Walker, D.; Clark, S. M.; Jones, R. L.; Cranswick, L. M. D. Journal of Synchrotron Radiation Jan 1, Volume: 7 p.: 18-21 (2000)
Marc W. Spiegelman
Personal Information
Marc
W.
Spiegelman
Professor
Earth and Environmental Sciences
Seismology Geology and Tectonophysics
Contact Information
108K Seismology
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
(845) 704-2323

Fax: 

(845) 365-8150

Fields of interest: 

Dynamic fluid flow, from magma migration theory to sedimentary basins and groundwater hydrology.

My early enthusiasm for earth sciences was fed by a steady diet of outdoor activities and PBS documentaries. While it rapidly became clear that I would not be the next Jacques Cousteau, I found that I could combine my tastes for backpacking and physics as a geology/geophysics major. As a Harvard undergraduate, I constructed physical models of mountain-building processes between stints as a U.S. Forest Service ranger, then moved to Cambridge, England, where I conducted my Ph.D. research on magma migration in the mantle.

At Lamont, I have been extending magma migration theory into a more general one that describes the interactions between solids and fluids in the earth. Magma migration provides an important link between large-scale mantle convection and petrology/geochemistry and my research seeks to close the gap between these two disciplines. This work also lends new insights into other fluid-flow problems, current research is attempting to extend this theory to investigate dynamic fluid flow in sedimentary basins and groundwater hydrology. My work is primarily computational and my students, colleagues and I are implementing new techniques and technologies to take advantage of parallel computing. With a quantitative basis for fluid-flow research, we hope to integrate this theory with Lamont's strong observational programs in petrology, basin dynamics and groundwater tracer studies.

Education
Ph.D.
Cambridge
1989
Bachelor of Arts
Harvard
1985