中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Quaternary glacial geomorphology and glaciations of Kongur Mountain, eastern Pamir, China

文献类型:期刊论文

作者Wang Jie2; Zhou ShangZhe1; Zhao JingDong3; Zheng JingXiong1; Guo XiangZhong1
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2011-04-01
卷号54期号:4页码:591-602
关键词Kongur Mountain glacial geomorphology ESR dating Quaternary glaciation hummocky moraine
ISSN号1674-7313
DOI10.1007/s11430-010-4165-y
通讯作者Zhou ShangZhe(zhsz@lzu.edu.cn)
英文摘要Kongur Mountain is the largest center of modern glaciation on the Pamir Plateau. During the glacial-interglacial cycles of the Quaternary, Kongur Mountain was extensively and repeatedly glaciated, and the glacial landforms from multiple glaciations are well-preserved in valleys, in basins, and on the piedmonts. Dating samples have been collected according to the distribution and weathering of the glacial tills, the relationship among the glacial deposits, and the loess or soil developed on the moraines. Electron spin resonance (ESR) dating of the samples was done using the germanium (Ge) centers in the glacial quartz grains, which are sensitive to both sunlight and grinding. The ages of the glacial deposits can be divided into four clusters, i.e., 13.1 +/- 0.8-27.0 +/- 2.2, 36.4 +/- 3.3-48.7 +/- 5.7, 65.6 +/- 6.8-86.6 +/- 8.9, and 105.6 +/- 9.4-178.3 +/- 17.8 ka. Six glacial advances in this region have been confirmed, which are equivalent in age to the Little Ice Age (LIA), Neoglaciation, marine oxygen isotope stages (MIS) 2, mid-MIS3, MIS4, and MIS6. The largest local last glacial maximum (LGM(L)) occurred during MIS4 rather than the global Last Glacial Maximum (LGM(G)) of MIS2, and a glacial advance that occurred during mid-MIS3 was also larger than the LGM(G). Furthermore, deeply weathered tills below 3500 m a.s.l. on the western slope of Kongur Mountain, when compared with the ages of the oldest glaciation of the Muztag Ata region, likely occurred prior to the penultimate glacial cycle. The glacial landforms prior to the penultimate glacial cycle on the northern slope are not well-preserved due to erosion after deposition. Several glacial deposits are only speculated to be distributed at higher elevations on the southwest side of the Gaizi Checkpoint. The extensive hummocky moraines on the western slope were formed by multiple glacial advances, and the latest glacial advance corresponded to mid-MIS3.
收录类别SCI
WOS关键词TIANSHAN MOUNTAINS ; TIBETAN PLATEAU ; EXPOSURE AGES ; MUZTAG ATA ; ESR ; HIMALAYA ; CLIMATE ; QUARTZ ; ICE ; PAKISTAN
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
语种英语
WOS记录号WOS:000289113000012
出版者SCIENCE PRESS
URI标识http://www.irgrid.ac.cn/handle/1471x/2556527
专题寒区旱区环境与工程研究所
通讯作者Zhou ShangZhe
作者单位1.S China Normal Univ, Geog Sci Coll, Guangzhou 510631, Guangdong, Peoples R China
2.Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Wang Jie,Zhou ShangZhe,Zhao JingDong,et al. Quaternary glacial geomorphology and glaciations of Kongur Mountain, eastern Pamir, China[J]. SCIENCE CHINA-EARTH SCIENCES,2011,54(4):591-602.
APA Wang Jie,Zhou ShangZhe,Zhao JingDong,Zheng JingXiong,&Guo XiangZhong.(2011).Quaternary glacial geomorphology and glaciations of Kongur Mountain, eastern Pamir, China.SCIENCE CHINA-EARTH SCIENCES,54(4),591-602.
MLA Wang Jie,et al."Quaternary glacial geomorphology and glaciations of Kongur Mountain, eastern Pamir, China".SCIENCE CHINA-EARTH SCIENCES 54.4(2011):591-602.

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来源:寒区旱区环境与工程研究所

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