辽宁八家子东部钼矿床地质特征及控矿条件分析  

Analysis on Geological Characteristics and Ore-controlling Condition of a Molybdenum Deposit in East Bajiazi of Liaoning Province

作　　者：王秋平[1] 王海涛[1] 褚冬莉[1] 

机构地区：[1]河南省地质矿产勘查开发局第三地质勘查院,河南洛阳471023

出　　处：《资源导刊（地球科技版）》2014年第9期16-19,共4页

摘　　要：辽宁八家子东部钼矿床为斑岩型钼矿床，主要产于花岗斑岩与其它岩体的内接触带以及断裂带附近，外接触带次之；成矿物质主要来源于花岗斑岩。矿石矿物成分主要为辉钼矿，呈片状、鳞片状、细脉状，具交代结构、粒状结构，细脉状、浸染状构造。围岩主要是花岗斑岩，热液蚀变较为强烈，硅化、云英岩化与辉钼矿化关系最为密切，常发育于矿脉的两侧或一侧。钼矿化对于地层并没有明显的选择性，燕山期岩浆活动和构造为该钼矿床的主要控矿因素。This molybdenum deposit is a part of the Bajiazi polymetallic metallogenic belt, located in the south of Jinxi-Qinglong fault zone. Ore deposit is porphyry molybdenum. The molybdenum is mainly hosted near the inner contact zone and fault zone between granite-porphyry and other rock mass, and the external contact zone took second place. Porphyry granite is the main mine sources of molybdenum deposit. Ore minerals are mainly molybdenlte, flake, scaly, and in fine vein. The ore texture is mainly metasomatic and granular. Ore structure is mainly fine vein and disseminated. Surrounding rock of ore body is mainly granite porphyry, hydrothermal alteration is relatively strong, and silicification and greisenization are most closely connected with the molybdenite mineralization, often developed on both sides of the vein or one side. Molybdenum mineralization is no obvious selectivity for stratum and magmatic activity in Yanshanian and structure are the main ore- controlling factors.

关 键 词：钼矿 地质特征 控矿因素 找矿标志 八家子 

分 类 号：P618.650.5[天文地球—矿床学]