Accession Number : ADP007354

Title :   Holocene Loess and Paleosols in Central Alaska: A Proxy Record of Holocene Climate Change,

Corporate Author : ALASKA UNIV FAIRBANKS

Personal Author(s) : Bigelow, N. H. ; Beget, J. E.

Report Date : MAR 1992

Pagination or Media Count : 5

Abstract : Episodic Holocene loess deposition and soil formation in the sediments of the Nenana valley of Central Alaska may reflect Holocene climate change. Periods of loess deposition seem to correlate with times of alpine glacier activity, while paleosols correspond to times of glacial retreat These variations may reflect changes in solar activity Stuiver and Braziunas, 1989. Other mechanisms, such as orbitally forced changes in seasonality, volcanism, and atmospheric C02 variability may also have affected Holocene climates and loess deposition.

Descriptors :   *ALASKA, *CLIMATE, *DEPOSITION, *SEDIMENTS, *SOILS, ATMOSPHERICS, GLACIERS, SOLAR ACTIVITY, VALLEYS, VARIATIONS, VOLCANISM, SYMPOSIA, POLAR REGIONS, WIND.

Subject Categories : Geography
      Physical and Dynamic Oceanography
      Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE