江西青塘地区盖层构造应力场分析  

An Analysis on Tectonic Stress Field in Covering Stratum in the Qingtang Area, Jiangxi

作　　者：蔡汝青 钟长汀[2] 

机构地区：[1]南方工业学校 [2]天津地质矿产研究所

出　　处：《江西地质科技》1997年第4期159-164,共6页

摘　　要：通过对青塘地区盖层的详细共轭节理的统计、分析,得出主压应力方位(σ_1)在海西印支期:向斜南翼为154°∠4°,北翼为314°∠22°;燕山早期:向斜南翼为102°∠40°,北翼为286°∠39°;燕山晚期:向斜南翼为157°∠41°,北翼为333°∠10°。从而得出海西印支期构造应力场主压应力为NW—SE,燕山早期为NWW—SEE,燕山晚期为NNW—SSE,与中国东部区域构造应力场一致,其构造机制为太平洋板块与亚洲板块相互作用和演化的结果。Based on detailed statistics and analysis on conjugated joints of the covering strata inQingtang area, the orientation of the principal compressive stress σ1 in this area was 4°/154° in the south limb and 22°/314° in the north limb of the syncline during the Hercynian -Indosmion Period , 22°/314° in the south limb and 39°/286° in the north limb during the Early Yanshanian Period, but 41°/157° in the south limb and 10°/333° in the north limb during the Late Yanshanian Period. Therefore the principal compressive stress of the tectonic stress field in this area was oriented NW-SE in the Hercynian- Indosmian Period, NWW - SEE in the Early Yanshanian Period and NNW - SSE in the Late Yanshanian Period which were in conformity with the regional tectonic stress field in East China. This tectonic mechanism has been resulted from the interaction and evolution of the Pacific Plate and the Asian Plate.

关 键 词：构造应力场 共轭节理 江西 青塘地区 盖层 

分 类 号：P554[天文地球—构造地质学]