DOI: 10.1007/s00531-013-0895-3
Scopus记录号: 2-s2.0-84884416788
论文题名: Was Himalayan normal faulting triggered by initiation of the Ramgarh-Munsiari thrust and development of the Lesser Himalayan duplex?
作者: Robinson D.M. ; Pearson O.N.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 7 起始页码: 1773
结束页码: 1790
语种: 英语
英文关键词: Himalaya
; Munsiari thrust
; Ramgarh thrust
; Thrust belts
Scopus关键词: fold and thrust belt
; footwall
; foreland basin
; hanging wall
; klippe
; Miocene
; normal fault
; Proterozoic
; strike-slip fault
; tectonostratigraphy
; Bhutan
; Himachal Pradesh
; Himalayas
; India
; Main Central Thrust Zone
英文摘要: The Ramgarh-Munsiari thrust is a major orogen-scale fault that extends for more than 1,500 km along strike in the Himalayan fold-thrust belt. The fault can be traced along the Himalayan arc from Himachal Pradesh, India, in the west to eastern Bhutan. The fault is located within the Lesser Himalayan tectonostratigraphic zone, and it translated Paleoproterozoic Lesser Himalayan rocks more than 100 km toward the foreland. The Ramgarh-Munsiari thrust is always located in the proximal footwall of the Main Central thrust. Northern exposures (toward the hinterland) of the thrust sheet occur in the footwall of the Main Central thrust at the base of the high Himalaya, and southern exposures (toward the foreland) occur between the Main Boundary thrust and Greater Himalayan klippen. Although the metamorphic grade of rocks within the Ramgarh-Munsiari thrust sheet is not significantly different from that of Greater Himalayan rock in the hanging wall of the overlying Main Central thrust sheet, the tectonostratigraphic origin of the two different thrust sheets is markedly different. The Ramgarh-Munsiari thrust became active in early Miocene time and acted as the roof thrust for a duplex system within Lesser Himalayan rocks. The process of slip transfer from the Main Central thrust to the Ramgarh-Munsiari thrust in early Miocene time and subsequent development of the Lesser Himalayan duplex may have played a role in triggering normal faulting along the South Tibetan Detachment system. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884416788&doi=10.1007%2fs00531-013-0895-3&partnerID=40&md5=db0308e465169731f35b0121a4ba86b1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70508
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: Department of Geological Sciences, The University of Alabama, Box 870338, Tuscaloosa, AL, 35487-0338, United States; U.S. Geological Survey, Denver Federal Center, MS 939 Box 25046, Denver, CO, 80225, United States
Recommended Citation:
Robinson D.M.,Pearson O.N.. Was Himalayan normal faulting triggered by initiation of the Ramgarh-Munsiari thrust and development of the Lesser Himalayan duplex?[J]. International Journal of Earth Sciences,2013-01-01,102(7)