Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1130/G23378A.1 |
Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany) | |
Mohr, Markus; Warren, John K.; Kukla, Peter A.; Urai, Janos L.; Irmen, Anton | |
通讯作者 | Mohr, Markus |
来源期刊 | GEOLOGY
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ISSN | 0091-7613 |
出版年 | 2007 |
卷号 | 35期号:11页码:963-966 |
英文摘要 | In the Northwest German Basin of Central Europe, Late Triassic interaction of normal faulting and salt diapirism during regional extension in subsalt basement locally initiated lateral flow of surface-piercing salt in namakiers (salt glaciers). Using seismic sections and variance attribute maps derived from high-resolution three-dimensional seismic data, we show that when a syndepositional fault cuts a near-emergent diapir crest, the caprock carapace was breached, opening a pathway for salt extrusion. The fault escarpment and the adjacent fault-induced depression allowed focused gravity-driven downward flow of salt across the land surface (a namakier) and its subsequent preservation and encasement in continental (arid redbed) sediments. Geodynamically there is an apparent distinction between the compressional setting of modern namakiers in the and deserts of Iran and the fault-intersected extensional setting of stacked Keuper namakiers. Stacked namakiers preserved in thicknesses that are seismically resolvable are interpreted to indicate hyperarid conditions in Keuper time. The climate was typical of the highly continental Late Triassic Pangaean supercontinent as it rifted and sagged to form the incipient Atlantic Ocean. |
英文关键词 | salt glacier diapirs Northwest German Basin continental redbeds extension |
类型 | Article |
语种 | 英语 |
国家 | Germany ; Oman |
收录类别 | SCI-E |
WOS记录号 | WOS:000250543900001 |
WOS关键词 | NW-GERMANY |
WOS类目 | Geology |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/154315 |
作者单位 | (1)Rhein Westfal TH Aachen, Inst Geol, D-52056 Aachen, Germany;(2)Sultan Qaboos Univ, Shell Chair Carbonate Studies, Muscat, Oman;(3)Gaz France Prod Explorat Deutschland GmbH, Lingen, Germany |
推荐引用方式 GB/T 7714 | Mohr, Markus,Warren, John K.,Kukla, Peter A.,et al. Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany)[J],2007,35(11):963-966. |
APA | Mohr, Markus,Warren, John K.,Kukla, Peter A.,Urai, Janos L.,&Irmen, Anton.(2007).Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany).GEOLOGY,35(11),963-966. |
MLA | Mohr, Markus,et al."Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany)".GEOLOGY 35.11(2007):963-966. |
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