The Sanjiang-Indochina region is one hot key area to study the evolutionof Tethys, and a lot of interesting topics have been excellently carried out by geologists from all over the world. One of the m
自从20世纪70年代末,George H Davis和Peter Coney首次将广泛分布于北美西部科迪勒拉造山带中一套独特的伸展构造和岩石组合定义为变质核杂岩之后,经过Crittenden,Coney以及Seyfert等人更为深入的研究,掀起了全世界对于这一独特的伸展构造的研究热潮,并将其定义为:变质核杂岩一般是呈近圆形或椭圆形的由强烈变形变质的岩石组成的孤立隆起,有岩体侵入其中,或者被远比核部