Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/jqs.2559 |
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 | |
Selvaraj, Kandasamy1,2,3; Chen, Chen-Tung Arthur1; Babu, C. Prakash1,4; Lou, Jiann-Yuh5; Liu, Ching-Ling1; Hsu, Kenneth J.6 | |
通讯作者 | Chen, Chen-Tung Arthur |
来源期刊 | JOURNAL OF QUATERNARY SCIENCE
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ISSN | 0267-8179 |
出版年 | 2012 |
卷号 | 27期号:7页码:725-733 |
英文摘要 | Establishing the precise timing of continental glacial dynamics and abrupt high-latitude climate events is crucial to understanding the causes of global climate change. Here we present multi-proxy records in a lake sediment core from arid Inner Mongolia (Wuliangsuhai Lake) that show two distinct glacially derived sedimentation events at similar to 26.221.8 and similar to 17.311.5k cal a BP. Fine sediments from the Last Glacial Maximum separate these glacially derived coarse sediments. Within these intervals, the occurrence of granite clasts at similar to 2423.5, 17.317 and 15.614.1k cal a BP implies either sediment discharge by meltwater as well as strong current flow in the Yellow River and/or sediment influx through hill-slope mass wasting and landsliding from the nearby Yin Mountains. Surface microfeatures of quartz grains and spot elemental analysis of black specks in these intervals, however, indicate that physical weathering is dominant and that the provenance of the rocks is probably from a glacial source. To the best of our knowledge, this is the first time glacier-derived materials have been detected in any desert lake in the Yellow River basin. The occurrence of granite clasts roughly correlates with Heinrich events in the North Atlantic, suggesting synchronous ice sheet dynamics in high- and mid-latitude regions during the Last Glacial period. Although our data provide unprecedented evidence for the influence of glacier-related processes in arid Inner Mongolia, further well-dated records are clearly needed to re-evaluate the correlative inference drawn between granite clast layers in Wuliangsuhai Lake and Heinrich events in the North Atlantic. Copyright (C) 2012 John Wiley & Sons, Ltd. |
英文关键词 | glacially derived sediments Inner Mongolia Last Glacial period mountain glaciation Wuliangsuhai Lake Yellow River |
类型 | Article |
语种 | 英语 |
国家 | Taiwan ; Peoples R China ; India ; England |
收录类别 | SCI-E |
WOS记录号 | WOS:000309743800008 |
WOS关键词 | LATE QUATERNARY ; NORTH-ATLANTIC ; TIBETAN PLATEAU ; CLIMATE RECORDS ; CHINESE LOESS ; ASIAN MONSOON ; GLACIATION ; ICE ; GREENLAND ; SEDIMENTS |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173824 |
作者单位 | 1.Natl Sun Yat Sen Univ, Inst Marine Geol & Chem, Kaohsiung 80424, Taiwan; 2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China; 3.Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan; 4.Natl Inst Oceanog, Geol Oceanog Div, Panaji, Goa, India; 5.Naval Acad, Dept Marine Sci, Kaohsiung, Taiwan; 6.Tarim Resources Recycling Co, Haslemere, England |
推荐引用方式 GB/T 7714 | Selvaraj, Kandasamy,Chen, Chen-Tung Arthur,Babu, C. Prakash,et al. Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2[J],2012,27(7):725-733. |
APA | Selvaraj, Kandasamy,Chen, Chen-Tung Arthur,Babu, C. Prakash,Lou, Jiann-Yuh,Liu, Ching-Ling,&Hsu, Kenneth J..(2012).Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2.JOURNAL OF QUATERNARY SCIENCE,27(7),725-733. |
MLA | Selvaraj, Kandasamy,et al."Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2".JOURNAL OF QUATERNARY SCIENCE 27.7(2012):725-733. |
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