摘要
苏北中—晚元古代云台岩群属苏鲁高压—超高压变质带的一部分。它经历了三期主要变质作用,即低绿片岩相(T=350℃~425℃、P=0.4GPa)、蓝闪绿片岩相(T=370℃~405℃、P=0.7GPa)和高绿片岩相(T=510℃~560℃、P=1.2GPa)变质作用,变质时代分别为泥盆—石炭纪、二叠纪和三叠纪。
The middlelower proterozoic Yuntai Group belongs to the part of SuLu High Pressure—UltralHigh Pressure metamorphic belt.It undergone three stage metamorphism mainly,i.e.the low greenschist facies(T=350~425℃,P=04Gpa),glaucophanegreenschist facies (T=370~405℃,P=07 GPa)and High greenschist facies(T=510~560℃,P=12 Gpa).The metamorphic ages are DevonianCarboniferous,Permian and Triassic respectively.
出处
《江苏地质》
1997年第4期204-211,共8页
Jiangsu Geology