Large Lakes Observatory

Erik T. Brown

Professor

Large Lakes Observatory
University of Minnesota
2205 E. 5th St.,
Research Laboratory Building 207
Duluth, MN 55812

Tel. (218) 726-8891

Fax: (218) 726-6979

email: etbrown at d.umn.edu

RESEARCH INTERESTS

• Paleoclimate records preserved in lake sediments and development of new climate proxies for paleolimnology.
• Biogeochemistry of trace metals and nutrients in lakes.
• Use of cosmogenic nuclides for quantitative examination of surface processes including erosion, landscape evolution, glacial history and neotectonics.

EDUCATION

MIT-Woods Hole Oceanographic Institution, Ph.D.
Princeton, A.B.

COURSES TAUGHT

• GEOL 2610, Oceanography
• GEOL 3710, Introduction to Geochemistry
• LIM 5002, Physical and Chemical Limnology
• GEOL 5710, Aqueous Geochemistry

RECENT PUBLICATIONS

C.A. Scholz, C.A., T.C. Johnson, A.S. Cohen, J.W. King, J.A. Peck, J.T. Overpeck, M.K. Talbot, E.T. Brown, L. Kalindekafe, P.Y.O. Amoako, R.P. Lyons, T.M. Shanahan, I.S. Castaneda, C.W. Heil, S.L. Forman, L.R. McHargue, K. Beuning, J. Gomez, and J. Pierson, 2007, East African megadroughts between 135-75 kyr ago and implications for early human history, Proc. Natl. Acad. Sci. U.S.A., 104, 16416-16421.

A.S. Cohen, J.R. Stone, K.R.M. Beuning, L.E. Park, P.N. Reinthal, D.Dettman, C.A. Scholz, T.C. Johnson, J.W. King, M.R. Talbot, E.T. Brown, and S.J. Ivory, 2007, Ecological Consequences of Early Late-Pleistocene Megadroughts in Tropical Africa, Proc. Natl. Acad. Sci. U.S.A., 104, 16422-16427.

E. T. Brown, T. C. Johnson, C. A. Scholz, A. S. Cohen and J. W. King, 2007, Abrupt change in tropical African climate linked to the bipolar seesaw over the past 55,000 years, Geophysical Research Letters, 34, doi:10.1029/2007GL031240.

R. Braucher, J. Kalvoda, D.L. Bourlès, E.T. Brown, Z. Engel, and J.-L. Mercier, 2006, Late Pleistocene deglaciation in the Vosges and the Krknose Mountains: Correlation of cosmogenic 10Be exposure ages, Geografický Casopis, 58, 3-14.

L.L. Siame , D.L. Bourlès and E T. Brown, editors. In Situ-Produced Cosmogenic Nuclides and Quantification of Geological Processes, Geological Society of America Special Paper 415. 158 pp., 2006.

J.-F. Ritz, R. Vassallo, R. Braucher, E.T. Brown, S. Carretier, and D.L. Bourlès, 2006, Using in situ-produced 10Be to quantify active tectonics in the Gurvan Bogd mountain range (Gobi-Altay, Mongolia), in In-Situ Produced Cosmogenic Nuclides and Quantification of Geological Processes, (L.L. Siame , D.L. Bourlès and E T. Brown, editors). Geological Society of America Special Paper 415, 87-109.

R. Braucher, L. Benedetti, D.L. Bourlès, E.T. Brown, and D. Chardon, 2005, Use of in situ produced 10Be in carbonate rich environments: A first attempt, Geochimica et Cosmochimica Acta ,69, 1473-1478.

E.T. Brown, P. Molnar, D.L. Bourlès, 2005, Technical comment on 'Slip-rate measurements on the Karakorum Fault may imply secular variations in fault motion'" Science, 309, 1326b.

R.M.L. McKay, D. Porta, G.S. Bullerjahn, M.M.D. Al-Rshaidat, J.A. Klimowicz, R.W. Sterner, T.M. Smutka, E.T. Brown, R.M. Sherrell, 2005, Bioavailable iron in oligotrophic Lake Superior assessed using biological reporters, Journal of Plankton Research, 27, 1033-1044.

E.T. Brown and T.C. Johnson,2005, Coherence Between Tropical East African and South American Records of the Little Ice Age, Geochemistry, Geophysics, Geosystems, 6, Q12005, doi:10.1029/2005GC000959.

R.W. Sterner, T.M. Smutka, R.L.M. McKay, Qin Xiaoming, E.T. Brown, and R.M. Sherrell, 2004, Phosphorus and trace metal limitation of algae and bacteria in Lake Superior, Limnology and Oceanography, 49, 495-507.

T.C. Johnson, E.T. Brown, and J. McManus, 2004. Diatom productivity in northern Lake Malawi during the past 25,000 years: Implications for the position of the intertropical convergence zone at millennial and shorter time scales, in Past climate variability through Europe and Africa, (R.W. Battarbee, F. Gasse, and C.E. Stickley eds) Springer, Dordrecht, 93-116.

R.M.L. McKay, G.S. Bullerjahn, D. Porta, E.T. Brown, R.M. Sherrell, T.M. Smutka, R.W. Sterner, M.R. Twiss, and S.W. Wilhelm, 2004, Consideration of the bioavailability of iron in the North American Great Lakes, Aquatic Ecosystem Health and Management, 7, 475-490.