Banerjee 9526827 Three loess regions in central Europe, central North America, and Alaska have been selected for a multi-proxy investigation with a strong magnetic component in a study for rapid and sensitive measurements of late Pleistocene climate change. Such a comparative, within-region and between-regions investigation is necessary for continental areas. We can then compare such data with the more numerous oceanic and ice-core records to test the validity of both the gradual and abrupt climate change history suggested for the last 130,000 years in the Northern Hemisphere. Preliminary magnetic studies of the periglacial loess profiles suggest that signatures of wind strength, source aridity, and in situ oxidation or reduction can be separated through the use of multiple magnetic proxies. Such proxies will then be validated by coulometric carbon, elemental analysis, grain-size measurements, and Mossbauer spectra.

Agency
National Science Foundation (NSF)
Institute
Division of Earth Sciences (EAR)
Type
Standard Grant (Standard)
Application #
9526827
Program Officer
H. Richard Lane
Project Start
Project End
Budget Start
1996-03-15
Budget End
1999-02-28
Support Year
Fiscal Year
1995
Total Cost
$125,174
Indirect Cost
Name
University of Minnesota Twin Cities
Department
Type
DUNS #
City
Minneapolis
State
MN
Country
United States
Zip Code
55455