CAJ | 학술논문

早古生代加里东运动造成华南强烈的构造变形，此次构造运动在黔东桂北地区主要表现为都匀运动和广西运动两幕。综合构造变形与沉积环境的研究认为，都匀运动作为局部的构造运动在凯里-三都断裂以西的黔中南地区影响明显；广西运动源于扬子地块和华夏地块沿江山-绍兴断裂带陆内挤压作用，形成自南东向北西的挤压应力的远程效应，向NW影响的范围止于凯里-三都断裂带。两幕构造运动在时空格局联合影响下形成了以断裂为界的两类构造特征：断裂以西主要受都匀运动的影响，发育EW向平缓褶皱、正断层等构造；断裂以东主要受广西运动的影响，发育NE向的褶皱、剪切带等构造。采自高武地区NE 向韧性剪切带中的样品，其白云母40 Ar/39 Ar测年坪年龄为（416.4±1.8）Ma，等时线年龄为（417.7±1.8）Ma；采自黎平地区NE 向劈理带中的样品，其绢云母40 Ar/39 Ar测年坪年龄为（426.5±2.3）Ma，等时线年龄为（437±10）Ma，这些变形年龄代表了广西构造运动发生的时限。
조고생대가리동운동조성화남강렬적구조변형，차차구조운동재검동계북지구주요표현위도균운동화엄서운동량막。종합구조변형여침적배경적연구인위，도균운동작위국부적구조운동재개리-삼도단렬이서적검중남지구영향명현；엄서운동원우양자지괴화화하지괴연강산-소흥단렬대륙내제압작용，형성자남동향북서적제압응력적원정효응，향NW영향적범위지우개리-삼도단렬대。량막구조운동재시공격국연합영향하형성료이단렬위계적량류구조특정：단렬이서주요수도균운동적영향，발육EW향평완습추、정단층등구조；단렬이동주요수엄서운동적영향，발육NE향적습추、전절대등구조。채자고무지구NE 향인성전절대중적양품，기백운모40 Ar/39 Ar측년평년령위（416.4±1.8）Ma，등시선년령위（417.7±1.8）Ma；채자려평지구NE 향벽리대중적양품，기견운모40 Ar/39 Ar측년평년령위（426.5±2.3）Ma，등시선년령위（437±10）Ma，저사변형년령대표료엄서구조운동발생적시한。
Taking place in Eopaleozoic,Caledonian movement caused strong deformation in southern China and was mainly represented by episodic movements of Duyun and Guangxi.Comprehensive research on tectonic deformation and sedimentary environment holds that Duyun movement,as a local one,evidently influenced the middle and southern parts of Guizhou,the western area of Kaili-Sandu fault.Whereas,Guangxi movement orig-inated from the squeezing of the Yangtze block and the Cathaysian block along the Jiangshan-Shaoxing fault. Under the influence of time and space,together the two movement events have formed two types of tectonic char-acteristics bordered by fault fracture.To the west of the fault fracture,this area is mainly influenced by Duyun movement and structures like EW folds and normal faults are developed.To the east,Guangxi movement shows its power,and structures such as NE folds and shear zones can be seen.The time of the occurrence of Guangxi movement is determined by samples collected from the study area.Among which samples from the ductile shear zone in Gaowu show that the plateau age of 40Ar/39Ar of muscovite is (41 6.4 ±1.8)Ma,and isochron dating is (41 7.7 ±1.8)Ma;those from NE cleavage belt in Liping show that the plateau age of 40Ar/39Ar of sericite is (426.5 ±2.3)Ma,and isochron age is (437 ±1 0)Ma.