Cosmogenic 10Be dating of Guxiang and Baiyu glaciations

被引：95

作者：

Zhou ShangZhe ^{[1
]}

Xu LiuBing

Colgan, Patrick M.

Mickelson, David M.

Wang XiaoLi

Wang Jie

Zhong Wei

机构：

[1] S China Normal Univ, Dept Geog, Guangzhou 510631, Peoples R China

[2] Grand Valley State Univ, Dept Geol, Allendale, MI 49401 USA

[3] Univ Wisconsin, Dept Geol, Madison, WI 53706 USA

[4] Univ Wisconsin, Dept Geol & Geophys, Madison, WI 53706 USA

[5] Lanzhou Univ, Dept Geog, Lanzhou 730000, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2007年 / 52卷 / 10期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

Guxiang Glaciation; Baiyu glaciation; cosmogenic Be-10 dating;

D O I：

10.1007/s11434-007-0208-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 [理学]; 0710 [生物学]; 09 [农学];

摘要：

Guxiang and Baiyu Glaciations are two previously recognized local glaciations of the Tibetan Plateau. They have been widely used as the reference standard for classifying Late Quaternary glaciations on the Tibetan Plateau and its surrounding mountains. However, the numerical chronologies of both glaciations have been lacking. In this study, cosmogenic Be-10 dating was undertaken to define the timing of these two glaciations. The surface boulders deposited by the glaciers of the Guxiang and Baiyu Glaciations have exposure ages of 112.9 +/- 16.7-136.5 +/- 15.8 ka BP and 11.1 +/- 1.9-18.5 +/- 2.2 ka BP, respectively. It is likely that the Guxiang and Baiyu Glaciations correspond to marine isotope stages 6 and 2,respectively.

引用

页码：1387 / 1393

页数：7

共 21 条

[1]

Rates and timing of earth surface processes from in situ-produced cosmogenic Be-10 [J].

Bierman, PR ;

Caffee, MW ;

Davis, PT ;

Marsella, K ;

Pavich, M ;

Colgan, P ;

Mickelson, D ;

Larsen, J .

BERYLLIUM: MINERALOGY, PETROLOGY, AND GEOCHEMISTRY, 2002, 50 :147-205

[2]

BROOK EJ, 1995, GEOLOGY, V23, P1063, DOI 10.1130/0091-7613(1995)023<1063:COAEAU>2.3.CO

[3]

[4]

GOSSE JC, 1995, GEOLOGY, V23, P877, DOI 10.1130/0091-7613(1995)023<0877:PCBMIW>2.3.CO

[5]

[6]

BE-10 DATING OF THE DURATION AND RETREAT OF THE LAST PINEDALE GLACIAL SEQUENCE [J].

GOSSE, JC ;

KLEIN, J ;

EVENSON, EB ;

LAWN, B ;

MIDDLETON, R .

SCIENCE, 1995, 268 (5215) :1329-1333

[7]

Terrestrial in situ cosmogenic nuclides: theory and application [J].

Gosse, JC ;

Phillips, FM .

QUATERNARY SCIENCE REVIEWS, 2001, 20 (14) :1475-1560

[8]

Relative variations in geomagnetic intensity from sedimentary records: The past 200,000 years [J].

Guyodo, Y ;

Valet, JP .

EARTH AND PLANETARY SCIENCE LETTERS, 1996, 143 (1-4) :23-36

[9]

*LANZH I GLAC CRYO, 1994, GLAC INV CHIN NYAINQ

[10]

LI BY, 1986, QUATERNARY GLACIAL D

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