Lagoon sediments geochemistry and its significance in study of climatic and environmental changes in Barrow, Alaska

Weili, Yang and Qingsong, Zhang and Guo, Wang (1998) Lagoon sediments geochemistry and its significance in study of climatic and environmental changes in Barrow, Alaska. Advances in Polar Science, 9 (1). pp. 59-65.

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Abstract

This paper deals with the features and distribution of chemical elements in the Borecore AB-67 (60 cm long, it covered a time span of past 450 a) from Elson Lagoon in Barrow, Arctic Alaska. The analyzing data show that concentration of major elements, trace elements, rare and rare-earth elements are quite different between the upper part (0 - 20 cm) and the lower part (20 - 60 cm). And the correlation between contents of clay and organic material and concentration of chemical elements are discussed. Based on the characters of sediment geochemistry of Borecore AB-67, the history of climatic and environmental changes in Barrow in the past 450 a can be reconstracted as follows: 1) Relatively cold and dry with low sea level stage occurred prior to 1740 A. D.; 2) It was becoming warm accompanied by transgression from 1740 A. D. to 1827 A. D.; 3) From 1827 A. D. to 1994 A. D. (0 - 20 cm), it was fluctuated warming accompanied by continuous transgression, in this period relatively cold appeared around 1935 A. D. and 1969 A. D. .

Item Type:	Article
Related URLs:
Keywords:	Arctic, Barrow, Lagoon, geochemistry, climate.
Subjects:	Unspecified
Organizations:	Unspecified
Date Deposited:	25 Apr 2023 10:54
URI:	http://library.arcticportal.org/id/eprint/2152

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