Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL080065 |
Little Geodetic Evidence for Localized Indian Subduction in the Pamir-Hindu Kush of Central Asia | |
Perry, M.1; Kakar, N.2; Ischuk, A.3; Metzger, S.4; Bendick, R.1; Molnar, P.5; Mohadjer, S.6 | |
2019-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:1页码:109-118 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Afghanistan; Tajikistan; Germany |
英文摘要 | Geodetically derived velocities from Central Asia show that Northern Afghanistan, the Tajik Pamir, and northwestern Pakistan all move northward with comparable large velocities toward Eurasia. Steep velocity gradients, hence high strain rates, occur only across the Main Pamir Fault zone and with lesser magnitude between the northernmost Hindu Kush and the south and southeast margins of the Tajik Depression. Localized shortening is not apparent on any active India-Hindu Kush crustal boundary; hence, crustal convergence between India and Eurasia in Central Asia is absorbed primarily on the northern and western margins of the Pamir. This concentrated strain on the Pamir margins is consistent with one, geometrically complex, interface between subducting Asian lithosphere and the Pamir. That interface might curve westward such that the Hindu Kush seismic zone is a continuation of the Pamir seismic zone, or alternatively, Hindu Kush earthquakes might occur in convectively unstable mantle lithosphere mechanically detached from surface faults. Plain Language Summary Using Global Positioning System (GPS) measurements of surface velocities, we find that much of the relative motion between India and Eurasia in Central Asia is accommodated on a single crustal boundary on the north side of the Pamir, wrapping around the eastern and southern margins of the Tajik Depression. |
英文关键词 | continental collision tectonics Hindu Kush geodesy |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456938600013 |
WOS关键词 | INTERMEDIATE-DEPTH EARTHQUAKES ; FAULT PLANE SOLUTIONS ; BREAK-OFF ; GRAVITATIONAL-INSTABILITY ; MANTLE EARTHQUAKES ; EURASIA COLLISION ; DEFORMATION ; REGION ; BENEATH ; RANGE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28014 |
专题 | 气候变化 |
作者单位 | 1.Univ Montana, Dept Geosci, Missoula, MT 59812 USA; 2.Norwegian Afghanistan Comm, Kabul, Afghanistan; 3.Acad Sci Republ Tajikistan, Inst Geol Earthquake Engn & Seismol, Dushanbe, Tajikistan; 4.GFZ German Res Ctr Geosci, Lithosphere Dynam, Potsdam, Germany; 5.Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA; 6.Univ Tubingen, Dept Geosci, Tubingen, Germany |
推荐引用方式 GB/T 7714 | Perry, M.,Kakar, N.,Ischuk, A.,et al. Little Geodetic Evidence for Localized Indian Subduction in the Pamir-Hindu Kush of Central Asia[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(1):109-118. |
APA | Perry, M..,Kakar, N..,Ischuk, A..,Metzger, S..,Bendick, R..,...&Mohadjer, S..(2019).Little Geodetic Evidence for Localized Indian Subduction in the Pamir-Hindu Kush of Central Asia.GEOPHYSICAL RESEARCH LETTERS,46(1),109-118. |
MLA | Perry, M.,et al."Little Geodetic Evidence for Localized Indian Subduction in the Pamir-Hindu Kush of Central Asia".GEOPHYSICAL RESEARCH LETTERS 46.1(2019):109-118. |
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