GEOCHEMISTRY OF SEDIMENTS AND ENVIRONMENT IN XIHU LAKE OF GREAT WALL STATION OF CHINA, ANTARCTICA

The determined results in this paper, which were obtained by the multielement analysis of the 260 cm-deep core sediments under the water of Xihu Lake in the Great Wall Station area, are as follows: The Cenozoic volcanic rocks around Xihu Lake are the main source of sediments in the lake. The chemica...

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Bibliographic Details
Main Authors: XIE, YY, GUAN, P, YANG, SJ, CHEN, BR, YANG, YN
Other Authors: XIE, YY (reprint author), ACAD SINICA,INST GEOG,BEIJING 100101,PEOPLES R CHINA., BEIJING UNIV,DEPT GEOL,BEIJING 100871,PEOPLES R CHINA., ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100080,PEOPLES R CHINA., ACAD SINICA,INST GEOG,BEIJING 100101,PEOPLES R CHINA.
Format: Journal/Newspaper
Language:English
Published: 中国科学b辑 化学英文版 1992
Subjects:
CORE OF XIHU LAKE
SOURCE ROCK
REE MODEL
CLIMATE CHANGE
Great Wall Station
Antarc*
Antarctica
Ice Sheet
Online Access:https://hdl.handle.net/20.500.11897/403311
Description
Summary:The determined results in this paper, which were obtained by the multielement analysis of the 260 cm-deep core sediments under the water of Xihu Lake in the Great Wall Station area, are as follows: The Cenozoic volcanic rocks around Xihu Lake are the main source of sediments in the lake. The chemical differentiation in very fine particles is still detectable. From the variation of ratios of the Cs/Rb, Br/CI and La/Yb in the clay fraction with depth and from the variation or CaCo3 contained in the sediments, cation replacing amount in the clay grains and the sediment grain sizes in time, it can be seen that since 3600 a. B. P., there has existed the climatic variation of warm-cold-warm, which embodies the advance and retreat history of the ice sheet in this area. Chemistry, Multidisciplinary SCI(E) 3 ARTICLE 6 758-768 35

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