DOI: 10.1007/s00531-013-0916-2
Scopus记录号: 2-s2.0-84884412168
论文题名: Tectonic and climatic forcing on the Panj river system during the Quaternary
作者: Fuchs M.C. ; Gloaguen R. ; Pohl E.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 7 起始页码: 1985
结束页码: 2003
语种: 英语
英文关键词: Fluvial incision
; Glacial chronology
; Pamir
; Panj river network
; River profiles
; Tectonic geomorphology
Scopus关键词: alluvial deposit
; climate forcing
; drainage basin
; Eurasian plate
; geomorphological response
; Indian plate
; marine isotope stage
; morphodynamics
; mountain region
; plate convergence
; Quaternary
; structural component
; tectonic setting
; Asia
; Pamirs
; Panj River
英文摘要: Surface processes involve complex feedback effects between tectonic and climatic influences in the high mountains of Pamir. The ongoing India-Asia collision provokes the development of east-west-trending mountain ranges that impose structural control on flow directions of the Pamir rivers. The evolving relief is further controlled by strong moisture gradients. The decreasing precipitations from the southern and western margins of the Pamir Plateau to its center, in their turn, control the emplacement of glaciers. Chronologies of glacial records from the Pamir Plateau attest for strong climatic variability during the Quaternary. Corresponding remnants of glacial advances suggest glacial morphodynamic restricted to >4,000 m a.s.l. since marine isotope stage 4. The Panj, the trunk river of Pamir, deflects from the predominant westward drainage, connecting its main tributaries at the western margin of the drainage basin. The geometry of the river network and the pattern of incision characterize the Panj as a composite river. River reaches of indicated low incision coincide with west-trending valleys, parallel to domes and their bounding faults. Valley shape ratios reflect increased incision in north-trending sections, but do not match with changes in the catchment geometry or erodibility of rock types. Modelled riverbed profiles distinguish three Panj reaches. The upstream increase in convexity suggests successive river captures in response to local base-level changes. The northward-deflected river reaches link the local base levels, which coincide with the southern boundaries of the Shakhdara and Yazgulom Dome and Darvaz Range. We argue that tectonics plays a large role controlling the drainage system of the Panj and hence surface processes in the Pamir mountains. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884412168&doi=10.1007%2fs00531-013-0916-2&partnerID=40&md5=88b291ee468cd69317956d76785c9425
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70511
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Remote Sensing Group, TU Bergakademie Freiberg, 09599 Freiberg, Germany; Remote Sensing Group, Helmholtz Institute Freiberg of Resource Technology, 09599 Freiberg, Germany
Recommended Citation:
Fuchs M.C.,Gloaguen R.,Pohl E.. Tectonic and climatic forcing on the Panj river system during the Quaternary[J]. International Journal of Earth Sciences,2013-01-01,102(7)