Stalagmite Trace Element and Its Implications from Yangzi Cave during 76~69 ka B.P.

LI ChenSi; YANG XunLin; HUANG Fan; LI GuoJun; LV ChunYan; YANG Yan

doi:10.14027/j.cnki.cjxb.2015.02.009

ISSN 1000-0550 CN 62-1038/P

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Volume 33 Issue 2

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Article Navigation > Acta Sedimentologica Sinica > 2015 > 33(2): 299-305

LI ChenSi, YANG XunLin, HUANG Fan, LI GuoJun, LV ChunYan, YANG Yan. Stalagmite Trace Element and Its Implications from Yangzi Cave during 76~69 ka B.P.[J]. Acta Sedimentologica Sinica, 2015, 33(2): 299-305. doi: 10.14027/j.cnki.cjxb.2015.02.009

Citation:

LI ChenSi, YANG XunLin, HUANG Fan, LI GuoJun, LV ChunYan, YANG Yan. Stalagmite Trace Element and Its Implications from Yangzi Cave during 76~69 ka B.P.[J]. Acta Sedimentologica Sinica, 2015, 33(2): 299-305. doi: 10.14027/j.cnki.cjxb.2015.02.009

Stalagmite Trace Element and Its Implications from Yangzi Cave during 76~69 ka B.P.

doi: 10.14027/j.cnki.cjxb.2015.02.009

1.
School of Geographical Sciences, Southwest China University, Chongqing 400715;
2.
Key Laboratory of Eco-environments in Three Gorges Reservoir(Ministry of Education), Chongqing 400715

Received Date: 2014-04-15
Rev Recd Date: 2014-05-22
Publish Date: 2015-04-10

Abstract

Using Chongqing Fengdu Yangzi Cave Stalagmite Y02 ICP-MS dating data, trace element data and stalagmite oxygen isotope data reconstruct the paleoclimate and paleoenvironment of Chongqing area during 76~69ka BP periods. We have contrasted the stalagmite Y02 test data with the curve of local solar radiation, the Greenland NGRIP ice core, the surface temperature of south sea, and results show that: Mg/Ca in stalagmite response to changes in precipitation mainly, while Sr/Ca, Ba/Ca and U/Ca response to surface soil conditions and local atmospheric dust activities, and thus in response to changes in precipitation indirectly; oxygen isotope and trace elements not synchronous changes appeared in stalagmite Y02, stalagmite δ¹⁸O heavy trend appeared 1ka later than the trace element ratios increased, shows that the changes of trace element ratios also affected by temperature in stalagmite.
- stalagmite,
- trace elements,
- Yangzi Cave,
- Three Gorges Reservoir
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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