DOI: 10.1007/s00531-015-1180-4
Scopus记录号: 2-s2.0-84945493087
论文题名: Structural model of the Balkassar area, Potwar Plateau, Pakistan
作者: Iqbal S. ; Akhter G. ; Bibi S.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2015
卷: 104, 期: 8 起始页码: 2253
结束页码: 2272
语种: 英语
英文关键词: Balkassar
; Crustal shortening
; Foreland basin
; Himalayan orogeny
; Potwar Plateau
Scopus关键词: crustal shortening
; diapirism
; foreland basin
; Himalayan orogeny
; normal fault
; reverse fault
; rifting
; structural geology
; Pakistan
; Potwar Plateau
; Punjab [Pakistan]
英文摘要: Balkassar is an important hydrocarbon producing area of the Potwar Plateau, Pakistan. Two-dimensional seismic reflection data of the area revealed tectonically controlled, distinct episodes of (1) normal faulting in the basement followed by (2) reverse faulting in the cover sequence. Himalayan orogeny and associated diapirism of the Precambrian Salt Range Formation have produced many salt-cored anticlines in the Potwar Plateau, and one such salt-cored anticline is present in the Balkassar. This anticline has NE–SW-oriented axis, and both the SE and NW limbs are bounded by reverse faults. The basement normal faults indicate Jurassic rifting and splitting of Pangaea. We interpret reverse faults with dip angles of about 60°–75° in the cover sequence, having both hinterland and foreland vergence. Both NW- and SE-dipping faults are present in contrast to the only southward-directed thrusts of previous models. Duplexes and triangle zones, which are common in the northern part of the Potwar Plateau, are not developed in the Balkassar area due to comparatively less crustal shortening in the area. The present interpretation can help in understanding the complex structures in other parts of the Potwar Plateau for hydrocarbons exploration and also in deformed foreland basins worldwide that display similar characteristics but are considered to be dominated by low-angle thrust tectonics. © 2015, Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945493087&doi=10.1007%2fs00531-015-1180-4&partnerID=40&md5=6c01967c7006e64127b11d683b5cfc02
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70239
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 Earth Sciences, Quaid-i-Azam University, Islamabad, Pakistan; Department of Geodynamics and Sedimentology, University of Vienna, Vienna, Austria; Schlumberger, Islamabad, Pakistan
Recommended Citation:
Iqbal S.,Akhter G.,Bibi S.. Structural model of the Balkassar area, Potwar Plateau, Pakistan[J]. International Journal of Earth Sciences,2015-01-01,104(8)