Mesozoic regional metamorphism took plaee in Western Hills of Beijing, China, in which platformal and diwa struetural layers were involved. In Zhoukoudian, south of Western Hills, there was low-amphibolite facies in t...Mesozoic regional metamorphism took plaee in Western Hills of Beijing, China, in which platformal and diwa struetural layers were involved. In Zhoukoudian, south of Western Hills, there was low-amphibolite facies in the Triassie as staurolite and kyanite zones were confined to decollements: with decroue in the temperature and pressure in the Jurassic,greenschist facies appeared when chloritoid and andaulusite rones were formed extensively.Intraformational folds and bedding-parallel ductile shear zones are common in Zhoukoudian where regional metamorphism is relatively strong. These phenomena are seldom seen in diwatype orogens and deserve further tesearch in the future.展开更多
文摘Mesozoic regional metamorphism took plaee in Western Hills of Beijing, China, in which platformal and diwa struetural layers were involved. In Zhoukoudian, south of Western Hills, there was low-amphibolite facies in the Triassie as staurolite and kyanite zones were confined to decollements: with decroue in the temperature and pressure in the Jurassic,greenschist facies appeared when chloritoid and andaulusite rones were formed extensively.Intraformational folds and bedding-parallel ductile shear zones are common in Zhoukoudian where regional metamorphism is relatively strong. These phenomena are seldom seen in diwatype orogens and deserve further tesearch in the future.
