滇中地区前地槽大地构造演化─运动特征  

PREGEOSYNCLINAL TECTONIC EVOLUTION MOVEMENT FEATURES OF CENTRAL YUNNAN

作　　者：赖健清[1] 陈国达[1] 彭省临[1] 

机构地区：[1]中南工业大学地洼学说成矿学研究所

出　　处：《中南工业大学学报》1999年第4期350-353,共4页Journal of Central South University of Technology(Natural Science)

基　　金：国家自然科学基金;国家教育部博士点基金

摘　　要：滇中地区前地槽构造层可以细分为活动构造层和“稳定”构造层，分别以哀牢山群及大红山群老厂河组为代表．它们是原陆壳活动阶段和原陆壳“稳定”阶段的产物．原陆壳活动阶段与地槽和地洼２个活动阶段在构造层分布特征、物质来源、沉积建造、岩浆建造、构造变形和区域变质作用等方面存在明显的区别．原陆壳“稳定”区已经初步具备陆壳特征，沉积区属于稳定的浅海，其沉积物来源于同期的稳定陆岛．The pregeosynclinal structural layer can be sub divided into mobile structural layer and “stable” structural layer, which is represented by Ailaoshan Group and Laochanghe Formation of Dahongshan Group, respectively. They were formed successively in protocontinental crust mobile stage and “stable” stage. The protocontinental crust mobile stage was distinctly different from other two mobile stages geosynclinal stage and diwa(geodepression) stage in distribution of the structural layers, material source, sedimentary formation, magmatic formation, tectonization, normal metamorphism, etc . The protocontinental crust “stable” region has taken the features of continental crust where the sedimentary environment was stable shallow sea, and sediments came from equivalent stable continental islands.

关 键 词：前地槽 地洼学说 云南 大地构造演化 构造运动 

分 类 号：P541[天文地球—构造地质学] P542[天文地球—地质学]