胶南造山带变质岩系中角闪石的初步研究

PRELIMINARY STUDY ON THE AMPHIBOLITES IN THE METAMORPHIC ROCK SERIES OF JIAONAN OROGENIC ZONE

摘要:

本文对胶南造山带变质岩系中角闪石的基本特征及形成条件进行了初步研究，根据不同地质单元中角闪石的类型、赋存状态、矿物组合等矿物学特点及电子探针分析结果，认为该区角闪石主要属钙质角闪石亚类。其形成的温压范围是：温度５４５～８０６．５℃，压力主要在０．２５～１．２ＧＰａ之间

Abstract:

In this paper,the basic characteristics and forming condition of the amphibolites in metamorphic rock series of Jiaonan orogenic zone have been preliminarily studied.According to the types,occurrence states,mineral associations and electronprobe analysis results of the amphibolites in different geological units,it is said that the amphibolites in this area mainly belong to a calcareous amphibolite′s subtype.The scopes of their forming temperature and pressure are as follows:temperature varies from 545℃ to 8...