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多滑脱层体系对川东南构造变形的影响分析
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Abstract:
川东渝湘鄂地区受雪峰山造山运动影响，从盆外到盆内，依次可以划分为雪峰山隆起区、挤出式变形带、隔槽式变形带、槽档过渡带、隔挡式变形带等5个构造变形带。虽受统一构造运动影响，但各变形区构造变形特征差异很大。本文研究以地震资料为基础，在精细解释的基础上，从滑脱层展布、厚度、能干性等方面入手，结合前人模拟实验分析成果，开展多滑脱体系对构造变形的影响分析，为今后川南地区构造研究提供参考。
Influenced by the orogeny of Xuefeng mountain, the area of East Sichuan, Chongqing, Hunan and Hubei can be divided into five structural deformation belts from the outside to the inside of the basin: Xuefeng mountain uplift, extrusion deformation belt, trough type deformation belt, trough type transition belt and trough type deformation belt. Although affected by the unified tectonic movement, the structural deformation characteristics of each deformation area are quite different. In this paper, based on the seismic data, on the basis of fine interpretation, from the distribution of detachment layer, thickness, dryness and other aspects, combined with the results of previous simulation experiments, the influence of multi detachment system on structural deformation is analyzed, which provides a reference for the future structural research in southern Sichuan.
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