Plate tectonic analysis of basin systems interspersed in orogenic belts requires that the effects of approximation be carefully distinguished from those of separation . 分析造山带中盆地系的板块构造时,需要将靠近作用与分离作用仔细区分开来。
At the same time , attained following fruits : 1 . the tectonic analysis indicated that the distortion of the foreland basin was mainly attributed to the movements of longmen mountains , the structural features , forming periods , and transformation fashions are different between the northern and southern segments 主要取得如下成果: 1 、构造研究表明川西坳陷形成与形变主要受控于龙门山造山带,表现为坳陷内部南、北段构造特征、形成期及其变形方式上的差异。
Basing on the acquaintence of the stratum , the rock , the structural setting , the tectonic framework and the research in the stratum , the rock and the structure of dam area in detail , using the modern principle of tectonic analysis , this paper analyzes the geometry characteristics , the deformation characteristics , the dynamics characteristics , kinematics characteristics of the dislocation interfaces . further more this paper discuss " the structural generation , the structural sequence and the structural evolution of the dislocation interfaces 在了解区域地层、岩石、构造背景和格局等基础上,结合对坝区地层、岩石和构造的详细调查研究,采用现代构造解析的原理和方法,对坝区错动带几何学特征、变形特征、动力学特征和运动学特征进行了全面的分析,并在此基础上探讨分析了坝区错动带的构造世代、变形序列及构造演化。
Based on the theory of plate tectonics and the new knowledge of continental dynamics , this paper starts mostly with tectonic analysis and then makes a comprehensive view on the characteristic of stratum composition , gold mine mineralized , magmatic activity as well as ruptures activity to discuss the yanshanian tectonic evolution of the xiaoqinling area under the regional tectonic framework of qinling orogenic belt 本文以板块构造理论和大陆动力学研究的新认识为指导,采用以构造分析为主线,结合区内地层沉积、金矿成矿、岩浆活动以及南北两侧断陷盆地形成演化等综合分析,在秦岭区域构造大框架下对小秦岭燕山期的构造演化特征进行探讨。
Tectonic analysis controlling gold mine mineralization in taihua group suggest that ductile fractures chang into brittle - ductile ones going with upliftling of xiaoqinling area after in - china orogeny . brittle fractures form on the basis of brittle - ductile ones that develop and inherit the characteristic of the latter stress field . folds and faults analysis in taihua group and its bilateral reveal that yanshanian tectonic evolution of xiaoqinling area undergo at least three phases of deformation 太华群内金矿成矿构造分析表明,印支期碰撞造山后小秦岭挤压抬升,控矿韧性剪切带向脆韧性转化( 207 148ma ) ,在脆韧性剪切带基础上叠加改造形成容矿断裂,脆性断裂的发育继承了韧脆性剪切带发育时的应力场特征。