云南个旧老厂锡矿矿田构造垂直分带研究  

STUDY ON VERTICAL ZONING OF OREFIELD STRUCTURES IN LAOCHANG TIN OREFIELD IN GEJIU AREA,YUNNAN PROVINCE

作　　者：高阳[1] 张寿庭[1] 

机构地区：[1]中国地质大学地质过程与矿产资源国家重点实验室

出　　处：《大地构造与成矿学》2007年第3期335-341,共7页Geotectonica et Metallogenia

基　　金：云南锡业集团有限责任公司重点科技项目(编号:3-4-05-50)

摘　　要：在对老厂矿田构造分类及其控矿构造特征分析的基础上,依据空间分布位置,将构造分为浅部,深部两个构造层次,依次为浅部的断裂及层间滑动破碎带和深部的接触带构造。二者分别控制了层间氧化矿和接触带矽卡岩锡石硫化物矿床。此外,岩体和地表之间的节理裂隙带控制了细脉带型矿床。这些类型组合在一起构成了矿田构造的垂直分带。Based on a study on the characteristics of the ore-controlling structures, the orefield structure in the Laochang orefield can be classified into three zones. The first zone consists of the system of faults and interbedded gliding fractural zone. The second zone consists of the system of joints or little fractures. The third zone consists of the contact structural system of magmatic intrusion. The three zones occur respectively as epizone, mesozone and hypozone in space, which respectively control the interbedded oxide deposit, the tin-bearing veinlets extending from the earth surface to the intrusive, and the skarn type cassiterite-bearing sulfide. When the three zones occur together in a combined form, an integrated structural zoning is formed.

关 键 词：个旧 矿田构造 垂直分带 

分 类 号：P613[天文地球—矿床学]