初论陆内造山带的造山模式──以四川龙门山为例  

A PRIMARY DISCUSSION ON THE OROGENIC MODEL FOR INNER CONTINENTAL OROGENIC BELTS──On the example of Longmenshan orogenic belt

作　　者：林茂炳[1] 

机构地区：[1]成都理工学院地质系

出　　处：《四川地质学报》1996年第3期193-198,共6页Acta Geologica Sichuan

摘　　要：四川龙门山造山带是陆内造山带的一个典型实例。陆内造山带经历了漫长的发展演化历史。前寒武纪时期的环境是属于古板块俯冲、碰撞的历史。具活动性大陆边缘性质，岩浆变质作用强烈，构造混杂明显。古生代以来转入地台环境，形成台相沉积。中生代早期转入陆内造山阶段。由早期的褶皱造山进而转化为推覆造山。两类不同性质的造山运动伴随了两类不同性质的前陆沉积盆地的形成和两类不同性质的沉积体系的形成。最终的区域构造特征不同程度地保留了陆内造山各阶段的地质记录，而以最后一次的推覆造山作用的影响最深刻。陆内造山的动力机制是与区域性的板块构造活动的大环境密切相关的。Longmenshan orogenic belt is a typical example of inner continental orogenic belts. It has a long evolution history. During the Precambrian, it represented an active continental margin with stong magmatism and metamorphism as well as tectonic mixing. In the Paleozoic, it was in a condition of platform with tremendous platform facies sediments predominated by carbonate rock.In the early Mesozoic, it began to enter into inner continental orogenic stage and changed from fold orogeny in the early stage to nappe orogeny in the late stage. The two orogenies were companied by two types of foreland basins with different sediments. The last regional tectonics recorded and preserved more or less features of different inner continental orogenies. Of course,the last nappe orogeny had the heaviest and deepest influence. Dynamics of inner continental orogeny is closely related to the general environment of plate movement.

关 键 词：造山模式 龙门山造山带 褶皱造山 推覆造山 板内(陆内)造山作用 

分 类 号：P542[天文地球—构造地质学]