新疆南部祖母绿(绿柱石)成矿地质条件初探  

Preliminary discussion of the the metallogenic conditions of emerald deposit,Southern Xinjiang,China

作　　者：禹秀艳[1] 李甲平[1] 汪立今[1] 罗卫东[2] 石玉君[2] 陈勇[2] 陈俊华[2] 

机构地区：[1]新疆大学地质与勘查工程学院,新疆乌鲁木齐830046 [2]新疆地质矿产勘查开发局第二地质大队,新疆喀什844000

出　　处：《中国矿业》2011年第11期61-63,共3页China Mining Magazine

基　　金：国家自然科学基金项目资助(40862004);新疆维吾尔自治区科技厅自然科学基金项目资助(编号:2011211A018)

摘　　要：新疆南部首次发现质量好的祖母绿(绿柱石),其成矿地质条件研究意义重大。本文主要对新疆南部祖母绿(绿柱石)矿的成矿地质条件进行初步探讨,包括区域地质特征、矿区及矿体地质特征、矿石显微矿物学特征等。发现新疆祖母绿矿体的形成和分布,受区内地层、岩浆、构造等多种因素和条件限制。祖母绿(绿柱石)多产于含碳质灰岩、页岩的方解石、方解石-石英细脉中,含祖母绿(绿柱石)矿脉多以斜交脉、顺层脉产出。在此研究基础上,根据所采集的样品,进行了显微矿物组合特征和生成顺序的微观矿物学研究,将成矿作用过程划分为三个期次,即成矿前、成矿期、成矿后。得出在成矿期形成的主要矿物为方解石、石英、钠长石、绿柱石等。通过上述研究,对该区祖母绿(绿柱石)找矿具有重要的指导意义。The emeralds of Xinjiang are good in quality,and the deposit has enormous potential yields of excellent quality emerald.This paper is mainly to analyze the geological characteristics of this deposit,including the regional geological features;mining and geological characteristics of ore body;ore mineralogical characteristics of micro.The formation and distribution of emerald ore bodies found in Xinjiang are controlled by regional stratigraphy,magmatic,tectonic and other factors.Emerald（Beryl） Produced in the carbonaceous limestone,shale,calcite,calcite-quartz veinlets.Veins mostly were shaped by oblique veins,bedding pulse.Based on this study,according to samples collected,carrying on microscopic order of mineral assemblages and the formation of micro-mineralogy,mineralization process will be divided into three periods,namely before mineralization,mineralization period,after forming,obtained in the main ore minerals of the formation of calcite,quartz,albite,beryl,etc..Through this research,the area emerald（beryl） exploration of important guiding significance.

关 键 词：祖母绿(绿柱石) 成矿地质条件 矿物组合特征 

分 类 号：P578.969[天文地球—矿物学]