摘要
庐山绿帘石花岗岩是“星子杂岩”的一部分,单颗粒错石U-Pb法定年表明其形成年龄为823±64Ma。绿帘石可能是在较高压力(0.5GPa)条件下,由岩浆结晶作用和岩浆自交代作用(角闪石的钾交代)形成的。绿帘石花岗岩的成岩年龄、岩石学和岩石化学特征表明,它可能是江南新元古代造山带造山晚期的产物。
The Lushan epidote granite is a part of the 'Xingzi complex'. Single-grain zircon U-Pb dating indicates that its age is 823±64 Ma. Epidote may be formed by crystallization and self-meta-somatism of magma (K-metasomatism of hornblende) at high pressure (approximate 0. 5 GPa). Its age, petrology and geochemistry show that it appears to be late-orogenic granite in the Late Proterozoic Jiangnan Orogenic Belt
出处
《地质论评》
CAS
CSCD
北大核心
1998年第2期143-148,共6页
Geological Review
