DOI: 10.1007/s12040-019-1280-9
论文题名: Redefining the timing of Tongul glacial stage in the Suru valley, NW Himalaya, India: New insights from luminescence dating
作者: Ali S.N. ; Morthekai P. ; Bajpai S. ; Phartiyal B. ; Sharma A. ; Quamar M.F. ; Prizomwala S.
刊名: Journal of Earth System Science
ISSN: 23474327
出版年: 2020
卷: 129, 期: 1 语种: 英语
英文关键词: Global last glacial maximum (gLGM)
; Optically stimulated luminescence (OSL) dating
; Southwestern Zanskar
Scopus关键词: climate change
; geochronology
; glacier advance
; Last Glacial Maximum
; luminescence dating
; moraine
; reconstruction
; Himalayas
; Zanskar Himalayas
英文摘要: The present study investigates latero-frontal moraines to reconstruct the pattern of glacier advances and associated climate variability in the Suru valley, southwestern Zanskar Himalaya. Impressive sets of latero-frontal moraines and discontinuous morainic ridges (recessional) represent the records of the past glacier advance and retreat. The northerly trending latero-frontal moraines that descend down the tributary valleys and terminate at the trunk Suru valley are the geomorphic expression of one of the oldest preserved record of glacier advance and is named as Tongul glacial stage. Previous studies (based on 10Be and 14C ages) defining the chronology of Tongul glacial stage are either limited in number (14C ages) or have a large spread (10Be ages) and hence demand further investigation. Optically stimulated luminescence (OSL) dating suggests that the Tongul glacial stage responded to the global last glacial maximum (gLGM) dated between ~20 and 24 ka. We suggest that the Tongul glacial stage was driven by enhanced mid-latitude westerlies and reduced temperature (viz., continental cooling) during MIS 2 and facilitated by corresponding long winters. © 2019, Indian Academy of Sciences. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158046
Appears in Collections: 气候变化与战略
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作者单位: Birbal Sahni Institute of Palaeosciences, Lucknow, India; Institute of Seismological Research, Gandhinagar, India
Recommended Citation:
Ali S.N.,Morthekai P.,Bajpai S.,et al. Redefining the timing of Tongul glacial stage in the Suru valley, NW Himalaya, India: New insights from luminescence dating[J]. Journal of Earth System Science,2020-01-01,129(1)