湖北清江榨洞石笋中可溶硅的测定及其古气候意义研究

胡超涌; 黄俊华; 杨冠青; 唐璐; 方念乔

Volume 27 Issue 4

Jul. 2002

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Article Navigation > Earth Science > 2002 > 27(4): 453-455

HU Chao-yong, HUANG Jun-hua, YANG Guan-qing, TANG Lu, FANG Nian-qiao, 2002. Determination of Trace Dissolved Silicon in a Stalagmite from Qingjiang, Hubei, China, and Its Paleoclimatic Significance. Earth Science, 27(4): 453-455.

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Determination of Trace Dissolved Silicon in a Stalagmite from Qingjiang, Hubei, China, and Its Paleoclimatic Significance

1.
Testing Centre, China University of Geosciences, Wuhan 430074, China
2.
Marine Geology Institute, China University of Geosciences, Beijing 100083, China

Received Date: 2001-11-17
Publish Date: 2002-07-25

Abstract

Abstract

Speleothems contains abundant paleoclimatic information and the correct interpretation depends on the development of various paleoclimatic proxies. In this paper, an improved reduced molybdosilicic acid spectrophotometry is used to measure trace dissolved silicon in a stalagmite from Zha cave, Qingjiang, Hubei Province and reveals its indication of the paleoclimate. It is discovered that a 9 000 a dissolved silicon may have recorded the variability of local groundwater chemistry composition. Under the chemical weathering process, the dissolved silicon originated from the silicate in soil is found to be controlled by the weather condition. Therefore, the dissolved silicon may be a potential proxy for paleoclimate, especially for ancient moisture.
- dissolved silicon,
- stalagmite,
- chemical weathering,
- paleoclimate

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References(9)

References

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