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郯庐断裂带南段并无巨大平移—来自安徽境内的证据
引用本文:汤加富,许卫.郯庐断裂带南段并无巨大平移—来自安徽境内的证据[J].地质论评,2002,48(5):449-456.
作者姓名:汤加富  许卫
作者单位:安徽地质调查院,合肥,230011
基金项目:中国地质科学院地质调查项目(编号:DKD2001010-1),地质行业基金项目(编号HY970829)
摘    要:本文根据新近1:5万地质填图和构造调查所获资料,依据郯庐断裂带两侧标志地质体(西冷岩组火山岩,宿松岩群和肥东岩群中磷矿层,大别岩群和阚集岩群)的构造型式和错位情况,拉伸线理的性质和动向,以及郯庐断裂带两侧的次级断裂带特征等,都不能判定郯庐断裂带存在巨大左行平移,故认为大别-苏鲁造山带呈弧形展布,基本代表了原始构造方位,郯庐断裂带是多期构造变动形成的负向构造带,综合造就的一种假位错效应。

关 键 词:郯庐断裂带  平移断裂  安徽  西冷岩组  宿松岩群  构造形式  位错

No Huge Strike Slip in the Southern Sector of the Tancheng-Lujiang Fault-Tectonic Evidence from Anhui Province
TANG Jiafu,XU Wei Anhui Academy of Geological Survey,Hefei.No Huge Strike Slip in the Southern Sector of the Tancheng-Lujiang Fault-Tectonic Evidence from Anhui Province[J].Geological Review,2002,48(5):449-456.
Authors:TANG Jiafu  XU Wei Anhui Academy of Geological Survey  Hefei
Abstract:The new 1 : 50,000 regional geological survey and tectonic study conducted by the authors, strike slips of the key geologic bodies on two sides of the Tancheng-LuJiang (Tanlu) fault (volcanic rocks of the Xileng Rock Formation, phosphorus ore beds of the Susong and Feidong Rock Groups, Dabie Rock Group and Kanji Rock Group), the character and trend of the extension lineation, and the second-order faults on two sides of the Tanlu fault all revealed that the southern section of the Tanlu fault has no huge left-handed strike slip. Thus, a new explanation was proposed in regard to the huge dislocation between the Dabie Mountains and Sulu (North Jiangsu-South Shandong Province) orogenic belt. The authors think that the Dabie-Sulu orogenic belt has arcuate distribution, basically representing its original tectonic orientation, and that the Tanlu fault is a negative structural zone resulting from multi-stage tectonic events.
Keywords:Tancheng-Lujiang fault  left-handed strike slip  no huge strike slip
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