中国地质2012，Vol.39Issue(3)：595-604,10.
基于DEM的活动构造研究
An analysis of relative active tectonics based on DEM
摘要
Abstract
Geomorphic indices are useful tools for studying relative active tectonics. This paper presents a new method for evaluating relative active tectonics based on DEM data, using several tectonic geomorphic indexes which include hypsometric integral, drainage basin asymmetry, stream-gradient index, mountain-front sinuosity, valley floor width ~ valley height ratio, drainage basin shape etc. Iat is an index of relative active tectonics, which is obtained by the average of the different classes of geomorphic indices. The authors divide them into four classes: low, moderate, high, and very high from relatively low to the highest tectonic activity. Exemplified by the upstream region of the Weihe River, the authors consider the drainage is relatively higher tectonic activity (Iat=1.50), and that the method has ideal effects and significance for exploring diversities of relative tectonic activities on an area! basis.关键词
地貌参数/活动构造/构造地貌/DEM/渭河上游流域Key words
geomorphic index/active tectonics/geomorphology/digital elevation model (DEM)/upstream region of the Weihe River分类
天文与地球科学引用本文复制引用
李利波,徐刚,胡健民,于新兵..基于DEM的活动构造研究[J].中国地质,2012,39(3):595-604,10.基金项目
中国地质调查局“全国地表形变遥感地质调查综合研究项目”(1212011140043)及“中国主要活动构造带构造研究及系列构造图编制”项目(1212011120099)资助. （1212011140043）
