Remote Sensing Analysis of Neotectonics Development Along Pyanj River in Pamir
The India-Eurasia hyper-collision is a result of subduction of continental crust, intra-continental thrusting and internal deformation. The Pamir mountains are an outstanding example of extreme crustal shortening during continental collision that may have been accommodated by formation of a thick crust much thicker than is currently thought and/or by continental subduction. The Pyanj River is one of the biggest tributary of the Amu Darya and it is 1,125 km long and flows mostly along the Afghanistan-Tajikistan border in the region of Pamir. The study focuses on the application of remote sensing techniques in order to show the spatial variation of uplift and deformation in this region. The main objective of this study is to identify active tectonics and estimation of deformation using power-law scaling relation between the slope channel and the drainage area. River profile analysis is considered to be a salient tool to study landscape responses due to tectonic influence. This method delineates breaks in scaling that may be associated with tectonic boundaries. It also facilitates in understanding the river response to rock uplift rate and serves as a qualitative tool to investigate the neotectonic developments, extraction of quantitative information regarding vertical displacements directly from the surface topography over large areas. With the help of geomorphological methods applied to die digital elevation models we have come to know that detection and mapping of active tectonics can be achieved at low cost and results are available rapidly. The data analysis shows variable distribution of relative uplift rates in this region.
Syed Amer Mahmood Richard Gloaguen
TU Bergakademie Freiberg, Institut für Geologic, Bernhard-v.-Cotta Str. 2, D-09596 Freiberg, Germany
国际会议
The 12th Conference of the International Association for Mathematical Geology(第12届国际数学地质大会)
北京
英文
522-525
2007-08-26（万方平台首次上网日期，不代表论文的发表时间）