九顶山铜钼多金属矿床控矿因素及找矿标志  

Ore-controlling Factors and Prospecting Indicators of Jiudingshan Cu-Mo Polymetallic Deposit in Western Yunnan,China

作　　者：刀艳[1] 李峰[1] 陆世才[2] 

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]中国冶金地质总局广西地质勘查院,南宁530000

出　　处：《科学技术与工程》2015年第14期121-125,共5页Science Technology and Engineering

摘　　要：九顶山铜钼多金属矿床受地层岩性、岩体产状、岩石化学、岩体蚀变分带、接触带构造等控制。喜马拉雅期中期,富含钼、铜等金属及硫元素的的岩浆流体上升侵位,富成矿元素的岩浆热液,聚集于斑岩体顶部及围岩接触带,发生广泛蚀变交代作用,斑岩体内→外接触带出现浸染状辉钼矿-黄铜矿-黄铁矿化→细脉-浸染状黄铜矿-辉钼矿化。矿区北东接触带,斑岩体内部至围岩接触带蚀变发育之处,矿区褶皱核部、两翼层间滑脱带、岩体内外接触带构造等均可作为重要的找矿标志。The formation of the Jiudingshan porphyry molybdenum-copper deposit is controlled by lithology, oc- currence, chemical feature, alteration, metamorphic, structure and so on. In the middle of Himalayan, the mag- matism, with the rich of Mo, Cu and S, intruded into the earlier granite and lower Ordovician strata. The ore-form- ing magmatism gathered together in the top of porphyry and country rock and occurred strong metasomatic alteration and corresponding Mineralization, impregnated mineralize of molybdenite-chalcopyrite-pyrite and stringer-dissemina- ted chalcopyrite-molybdenite from granite porphyry to the contact zones of hornstone-skarn. The results show that the northeastern contact zone of mine, alteration from porphyry to country rock contact zone, the core of fold, inter- layer spondylolisthesis in fold＇s limbs, and the inside and outside contact belt of rock body are the main enrichment belt.

关 键 词：斑岩体 围岩蚀变 接触带构造 控矿因素 找矿标志 九顶山 

分 类 号：P611[天文地球—矿床学]