• 责任者：Xu Yueren (Key Laboratory of Active Tectonics and Volcanoes ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; He Honglin
• 刊名：Quaternary Sciences
• 出版年：2013
• 卷期：33(4)
• 关键词：流水地貌 ; fluvial features ; 山西 ; Shanxi Province
• 页码：p.746-759
• 图表：9 illus., 1 table, 59 refs.
• 分类号：1400
• issnNo：ISSN1001-7410
• isbnNo：CN11-2708/P

     The quantitative study of river geomorphology is very important to understand the interaction between tectonic and surface processes.Mts.Huoshan,located in the middle of the Shanxi graben system,between Linfen basin and Taiyuan basin,has uplifted to 1500m because of the normal faulting of the Huoshan Piedmont Fault Zone（HPFZ）on the west foot slope of the mountains,is also famous for happened the 1303 MS8.0 earthquake.Our studies on a series of quantitative fluvial geomorphic parameters,such as longitudinal profile style,stream length-gradient index（SL index）,standard stream length-gradient index（SL/K index）,Hack profile,hypsometric integral curves and its values（HI）,etc.of selected 48 rivers around the Mts.Huoshan,across and not across the HPFZ,allow us to summarize the following general points：（1）To the rivers across the HPFZ,the longitudinal profiles of upstream and downstream,divided by the fault,show significantly different from each other,demonstrating obvious characteristics controlled by fault activity,to the other ones,the longitudinal profiles performance an approximate exponential curve,showing a near-equilibrium.（2）The HI values and Hypsometric integrate curves of all river basins indicate that all the rivers are in the prime of life or childhood,that is,Mts.Huoshan is in the state of strong uplift and weak erosion overall in Cenozoic era.（3）Convex Hack profiles of all rivers also shows that Mts.Huoshan is in the stage of intense tectonic uplift in the Cenozoic,while Hack profile of rivers across the HPFZ with sudden decreased change shape unlike the approximate arc-shaped of the other ones.（4）The river segments with abnormally high SL/K values are usually corresponded to the normal faulting,while random appearance of high SL/K values on the other rivers corresponds to the bedrock with weathering differences.There is a significant correlation between quantitative river geomorphic parameters and tectonic environment,these parameters of rivers across HPFZ shows the normal faulting of the Huoshan piedmont fault zone during Cenozoic.