摘要
云开隆起区不同混合岩化程度的混合岩在空间多以黑云母花岗岩为中心,呈环带状分布,混合岩的矿物空间分布研究表明,新成体矿物具有随机分布特点,说明为熔浆结晶成因,结晶温度在560~580℃.条带状混合岩的质量平衡研究表明,新成体和古成体的成分具有很好的相关性。
The migmatites in the Yunkai uplift are distributed as zones around a center of biotitegranite. The minerals in the neosome of migmatites show a random distribution resulting from the crystallization of melts, with a temperature about 560~580℃. The results of mass balance calculation of the banded migmatites show that the composition of the neosome is positively related to that of the paleosome's. A progressive melting model is used to explain the formation of the migmatites in the Yunkai uplift and its spatial distribution style.
出处
《地球科学(中国地质大学学报)》
EI
CAS
CSCD
北大核心
1997年第3期332-338,T001,共8页
Earth Science-Journal of China University of Geosciences
基金
地质矿产部八.五攻关项目
地质矿产部壳幔体系组成
物质交换及动力学开放研究实验室基金