DOI: 10.1016/j.quascirev.2018.01.005
Scopus记录号: 2-s2.0-85041385725
论文题名: Quaternary glaciation of the Lato Massif, Zanskar Range of the NW Himalaya
作者: Orr E.N. ; Owen L.A. ; Saha S. ; Caffee M.W. ; Murari M.K.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 183 起始页码: 140
结束页码: 156
语种: 英语
英文关键词: Cosmogenic isotopes
; ELA
; Glaciation style
; Till deposits
; Zanskar Range
Scopus关键词: Deposits
; Snow
; Chronostratigraphy
; Cosmogenic isotopes
; Equilibrium line altitudes
; Glacial-interglacial cycles
; Glaciation style
; Sediment transfers
; Surface exposure dating
; Zanskar Range
; Glacial geology
; chronostratigraphy
; climate forcing
; dating method
; geomorphological mapping
; glaciation
; glacier
; Last Glacial-Interglacial
; moraine
; Quaternary
; till
; Himalayas
; Himalayas
; India
; Zanskar Himalayas
英文摘要: The glacial chronostratigraphy and history of the Lato Massif of Zanskar northern India is defined for the first time using geomorphic mapping and 10Be surface exposure dating. Three local glacial stages, the Lato, Shiyul and Kyambu, are dated to 244–49, 25–15 and 3.4–0.2 ka, respectively. The Lato glacial stage was the most extensive period of glaciation, characterized by expanded ice caps with glaciers advancing to ∼16 km from their present position. Large till deposits are associated with this glacial stage, which represent a time of heightened glacial erosion and localized incision, and increased rates of sediment transfer and deposition. The glacial style transitioned to entrenched valley glaciation during the Shiyul glacial stage. Hummocky moraine complexes reflecting fluctuating glacier margins characterize this glaciation. Glaciers have been confined to the cirques and headwalls of the massif during and since the Kyambu glacial stage. Equilibrium-line altitude (ELA) reconstructions help define the shifts in glaciation over time, with ELA depressions changing from 470 ± 140, 270 ± 80 to 100 ± 30 m for the Lato, Shiyul and Kyambu glacial stages, respectively. The change of glacial style during the latter part of the Quaternary is similar to other regions of the Transhimalaya and Tibet suggesting that this pattern of glaciation may reflect regional climatic forcing. The evolution of the Lato Massif from an isolated alpine plateau to a steeply incised massif over the last several glacial-interglacial cycles may have also influenced the shifts from ice cap to valley glaciation. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112285
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geology, University of Cincinnati, Cincinnati, OH 45221, United States; Department of Physics, Purdue University, West Lafayette, IN 47907, United States; Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN 47907, United States; Department of Geography, Justus Liebig University Giessen, Giessen, Hessen 35390, Germany
Recommended Citation:
Orr E.N.,Owen L.A.,Saha S.,et al. Quaternary glaciation of the Lato Massif, Zanskar Range of the NW Himalaya[J]. Quaternary Science Reviews,2018-01-01,183