DISTRIBUTION OF FE AND MG BETWEEN GARNET STAUROLITE AND BIOTITE IN ALUMINUM-RICH SCHIST IN VARIOUS METAMORPHIC ZONES NORTH OF IDAHO BATHOLITH

被引：43

作者：

HIETANEN, A

机构：

来源：

AMERICAN JOURNAL OF SCIENCE | 1969年 / 267卷 / 03期

关键词：

D O I：

10.2475/ajs.267.3.422

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Garnet, staurolite, biotite, and muscovite were separated from aluminum-rich schists in various metamorphic zones north of Idaho batholith and analyzed chemically; chemical analyses of host rocks show that bulk composition of schist is fairly uniform; all rock analyses plot near Al corner on Al-Fe- Mg diagrams; pressures during second episode of metamorphism-episode responsible for present mineralogy-were fairly uniform, but temperature increased toward batholith; distribution of Mg and Fe between garnet and biotite changed with temperature.

引用

页码：422 / &