摘要
江西蒙山东南部具有丰富的透辉石矿。通过收集蒙山东南部一大型透辉石矿采石场的第一手野外地质资料,总结了蒙山东南部透辉石矿床地质特征,探讨透辉石矿床成因。研究表明:蒙山东南部透辉石矿体主要有2层,赋存于二叠系中统栖霞组灰岩和花岗岩外接触带100~200 m;透辉石矿成矿物质来源为栖霞组地层本身的硅钙镁组分,热源为印支期的蒙山复式岩体;区域滑覆构造体系形成的各类裂隙有利于H_(2)O、CO_(2)及时外排;各种有利因素综合作用形成区内大型透辉石矿,矿床成因属接触热变质型矿床。
There are abundant diopside deposits in the southeast of Mengshan,Jiangxi.By collecting the first-hand field geological data of a large-scale diopside ore quarry in southeast of mengshan,the geological characteristics of diopside deposit in southeast of mengshan are summarized,and the genesis of diopside deposit is discussed. The study shows that there are two layers of diopside ore bodies in the southeastern part of Mengshan,which are located in the outer contact zone of limestone and granite in the Middle Permian Qixia Formation 100~200 m.The source of diopside ore-forming materials is the silicon-calcium-magnesium component of the Qixia Formation itself,and the heat source is the Mengshan composite rock mass of the Indosinian period. All kinds of cracks formed by the regional sliding structure system are conducive to the timely discharge of H_(2)O and CO_(2).The comprehensive action of various favorable factors forms a large diopside deposit in the area. The genesis of the deposit is a contact thermal metamorphic deposit.
作者
李洪斌
左德强
LI Hongbin;ZUO Deqiang(The Fifth Geological Brigade of Jiangxi Geologiacl Bureau)
出处
《现代矿业》
CAS
2022年第12期71-74,共4页
Modern Mining
关键词
透辉石矿
矿床地质特征
成因分析
diopside deposits
geological characteristics of deposit
genetic analysis
