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EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > LOESS
Definition:
Loess is a deposit of wind-blown silt and dust of Pleistocene age that covers
large areas of the continents. It is predominently calcerous consisting of
quartz feldspars and micas. Loess is extensive in the North American Great
Plains, south-central Europe, Ukraine, central Asia, China, and Argentina.
Loess deposits in North America are related to large outwashes from the
Laurentide ice sheet and floodplains of large rivers. Loess deposits in Europe
are related to the former Alpine and Scandinavianice sheets. Loess in China and
central Asia are related to desert conditions.
Reference:
Jackson, J.A., ed. 1997. Glossary of Geology, 4th ed. American Geological
Institute.
Bradley, R.S. 1999. Paleoclimatology: Reconstructing Climates of the
Quaternary, 2nd ed. Harcourt Acadaemic Press.
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