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Professor and Chair
Earth and Environmental Sciences
413 Comer
61 Route 9W - PO Box 1000
(845) 365-8417
(845) 365-8155


Fields of interest: 
geochronology, sedimentary geochemistry, paleoclimate, continental crust evolution

I consider my field to be Historical Geology.  Using the record from sediments and sedimentary rocks, I seek to document aspects of Earth's history.  Understanding the provenance and processes recorded in the geochemistry of sediments and sedimentary rocks lies at the heart of my research interests.  I have strong interest in tectonics and continental crust evolution questions on the longer time scale. I have an active program of applying radiogenic isotopes for tracing the sources of sediments with the goal of understanding Quaternary climate changes and associated changes in winds, currents and glaciers. Provenance studies of ice rafted detritus are key to working out the dynamic relationships among paleo-climate and paleo-ocean circulation and their interactions with the large ice sheets that covered the northern continents during the ice ages.  Geochronology is essential to my research and I am actively participating in projects to improve our ability to obtain reliable age estimates on events in Earth's history.

  • Ar Geochronology Lab
List of degrees from highest to lowest:
SUNY Stony Brook
Master of Science
Bachelor of Science

Lamont Projects:

Lamont/DEES Student List: 
Marissa Tremblay, Barnard College Senior

Research Blogs:

Referenced in the Following News Items:

Featured in the Following Videos:

Selected Publications:

Characterizing the sediment provenance of East Antarctica's weak underbelly: The Aurora and Wilkes sub-glacial basins, Pierce Pierce, E.L.; Williams T.; van de Flierdt, T.; Hemming, S.R.; Goldstein, S.L.; Brachfeld, S.A. Paleoceanography Volume: 26 Issue: PA4217 p.: 10.1029/2011PA002127 (2011)
Evidence for iceberg armadas from East Antarctica in the Southern Ocean during the late Miocene and early Pliocene Williams, T; van de Flierdt, T; Hemming, SR; Chung, E; Roy, M; Goldstein, SL Earth and Planetary Science Letters Volume: 290 p.: 351-361 (2010)
Contrasting compositions of Saharan dust in the eastern Atlantic Ocean during the last deglaciation and African Humid Period Cole, J. M.; Goldstein, S. L.; deMenocal, P. B.; Hemming, S. R.; Grousset, F. E. Earth and Planetary Science Letters Volume: 278 Issue: 3-4 p.: 257-266 (2009) doi:10.1016/j.epsl.2008.12.011
Use of strontium isotopes in detrital sediments to constrain the glacial position of the Agulhas Retroflection Franzese, A. M.; Hemming, S. R.; Goldstein, S. L. Paleoceanography Volume: 24 (2009) 10.1029/2008PA001706
Spectral analysis of the lower Eocene Wilkins Peak Member, Green River Formation, Wyoming: Support for Milankovitch cyclicity Machlus, M. L.; Olsen, P. E.; Christie-Blick, N.; Hemming, S. R. Earth and Planetary Science Letters Apr 15 Volume: 268 Issue: 1-2 p.: 64-75 (2008) DOI 10.1016/j.epsl.2007.12.024
Modeling the marine nd isotope variability with an offline ocean general circulation model Jones, K. M.; Khatiwala, S.; Goldstein, S. L.; Hemming, S. R.; van de Flierdt, T. Geochimica Et Cosmochimica Acta Jul Volume: 72 Issue: 12 p.: A439-A439 (2008)
Ar-40/Ar-39 ages of hornblende grains and bulk Sm/Nd isotopes of circum-Antarctic glacio-marine sediments: Implications for sediment provenance in the Southern Ocean Roy, M.; van de Flierdt, T. V.; Hemming, S. R.; Goldstein, S. L. Chemical Geology Oct 15 Volume: 244 Issue: 3-4 p.: 507-519 (2007) DOI 10.1016/j.chemgeo.2007.07.017
Heinrich events: Massive late pleistocene detritus layers of the North Atlantic and their global climate imprint Hemming, S. R. Reviews of Geophysics Mar 18 Volume: 42 Issue: 1 p.: - (2004) Doi 10.1029/2003rg000128
Radiogenic isotopes as tracers of sediment provenance and flux: Paleoceanography of the South Atlantic Franzese, A. M.; Hemming, S. R.; Goldstein, S. L.; Anderson, R. F.; Broecker, W. S. Geochimica Et Cosmochimica Acta Sep Volume: 67 Issue: 18 p.: A102-A102 (2003)
Ar-40/Ar-39 ages and Ar-40* concentrations of fine-grained sediment fractions from North Atlantic Heinrich layers Hemming, S. R.; Hall, C. M.; Biscaye, P. E.; Higgins, S. M.; Bond, G. C.; McManus, J. F.; Barber, D. C.; Andrews, J. T.; Broecker, W. S. Chemical Geology Feb 15 Volume: 182 Issue: 2-4 p.: 583-603 (2002) Pii S0009-2541(01)00342-4
Laschamp excursion at Mono Lake? Kent, D. V.; Hemming, S. R.; Turrin, B. D. Earth and Planetary Science Letters Apr 15 Volume: 197 Issue: 3-4 p.: 151-164 (2002) Pii S0012-821x(02)00474-0
Paleoclimate - Climate swings come into focus Broecker, W. S.; Hemming, S. Science Dec 14 Volume: 294 Issue: 5550 p.: 2308-2309 (2001)