摘要
香口－湖口滑脱断层沿上泥盆统五通组与中石炭统黄龙组之间的构造软弱面发育，产状大部分地段与地层产状一致，局部切层，总体走向北东，倾向北西，上盘为石炭－二叠系碳酸盐岩，下盘为志留－泥盆系碎屑岩，主要表现为上盘向北西滑动的正断层性质。断层主要形成于印支－燕山期，属大型隆拗构造背景上沉积盖层内部的层间滑脱。该断层早、中更新世曾有过微弱活动，但晚更新世以来无活动。
Xiangkou-Hukou d'ecollement fracture developed along the structural surface of weakness between the Upper Devonian Wutong formation and the middle Carboniferous Huanglong formation.The occurrence of most part of section is consistent with that of stratigraphy,namely,local tangential fault,trending north in total and dipping towards northwest.The hangingwall is Carboniferous-Permian carbonate,while th footwall is the lower Silurian-Devonian elastic rock,which represents the property of the normal fracture that the hanging wall slides towards the northwest.The fracture was mainly formed during the Indo-Chinese-Yanshanian period, belonging to the interlayer d' ecollement within the sedimentary cover over the background of large-scale rift and depression structure.This fracture was undergone weak activity during the early and middle Pleistocene Epoch, but no activity since Late Pleistocene Epoch.
出处
《江西地质》
1996年第4期280-288,共9页
Jiangxi Geology
