Geomorphic analysis reveals active tectonic deformation on the eastern flank of the Pir Panjal Range, Kashmir Valley, India

被引:48
作者
Ahmad, Shabir [1 ]
Bhat, M. I. [1 ]
Madden, Christopher [2 ]
Bali, B. S. [1 ]
机构
[1] Univ Kashmir, Dept Earth Sci, Srinagar 190006, Jammu & Kashmir, India
[2] Oregon State Univ, Dept Geosci, Corvallis, OR 97331 USA
关键词
Geomorphic indices; Drainage anomalies; Balapur Fault; Field findings; SW Kashmir; EVOLUTION; STRATIGRAPHY; FAULT;
D O I
10.1007/s12517-013-0900-y
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
There are plenty of faults that show evidence that they are active. Most of the valley's floor is occupied by unconsolidated Karewa deposits, in particular on the south-southwest of the Kashmir Valley. In such situations, geomorphic data can reveal the location of active faults. Accordingly, we tried to identify geomorphic indices in SW of the Kashmir Valley (Veshav, Rambiara, and Romushi drainage basins), which revealed the area to be potentially tectonically active. This active faulting was further substantiated by drainage anomalies and field investigations, which provides evidence for an emergent out-of-sequence NE-dipping active reverse fault (identified first time on ground) named the Balapur Fault (BF). The BF can be traced over at least 40 km along the southwest side of the Kashmir Valley. The existence of the active Balapur Fault and of two other inferred faults north of the Panjal Thrust or Murree Thrust presents a picture of a more complex strain-partitioning regime in the Kashmir Himalayas than is usually visualized.
引用
收藏
页码:2225 / 2235
页数:11
相关论文
共 55 条
[1]  
Ahmad B, 2009, HIMAL GEOL, V30, P75
[2]  
[Anonymous], 1976, PROC 6 INDIAN C MICR
[3]  
[Anonymous], 1910, REC GEOL SURV INDIA
[4]  
[Anonymous], 1975, GEOL IND MISC PUB
[5]  
[Anonymous], 1989, DIR GEN GEOL SURVEY
[6]  
Bhat MI, 2008, WORKSH OCT 8 2005 KA, P39
[7]  
Bhatt D.K., 1976, Himal. Geol., V6, P197
[8]  
Bloom AL, 1979, GEOMORPHOLOGY
[9]   Bright spots, structure, and magmatism in southern Tibet from INDEPTH seismic reflection profiling [J].
Brown, LD ;
Zhao, WJ ;
Nelson, DK ;
Hauck, M ;
Alsdorf, D ;
Ross, A ;
Cogan, M ;
Clark, M ;
Liu, XW ;
Che, JK .
SCIENCE, 1996, 274 (5293) :1688-1690
[10]  
Bull W. B., 1977, Geomorphology in Arid Regions, P115