新疆阿尔泰山南缘产于泥盆纪火山-沉积盆地铅锌矿床地质特征——以可可塔勒铅锌矿为例  

GEOLOGICAL CHARACTERISTICS OF Pb-Zn DEPOSITS IN DEVONIAN VOLCANIC-SEDIMENTARY BASINS IN THE SOUTH MARGIN OF ALTAY MOUNTAIN: CASE STUDY OF KEKETALE Pb-Zn DEPOSIT,XINJIANG,CHINA

作　　者：王书来[1] 郭正林 王玉往[1] 毛政利[3] 

机构地区：[1]北京矿产地质研究院,北京100012 [2]新疆有色地质勘查局706大队,阿勒泰836500 [3]平顶山工学院,平顶山467001

出　　处：《地质与勘探》2005年第6期27-33,共7页Geology and Exploration

基　　金：国家重点基础研究发展规划项目(编号:2001CB409806);国土资源大调查项目(编号:200210200022)资助

摘　　要：可可塔勒矿床位于新疆阿尔泰造山带南缘,产于泥盆纪火山-沉积盆地内铅锌矿(可可塔勒)体呈似层状、透镜状,矿石构造以条纹条带状、块状、斑杂状为主,矿物成分相对简单,矿体直接容矿围岩为火山-沉积岩。矿床属火山-沉积岩容矿的块状硫化物矿床。为介于典型的火山岩容矿的块状硫化物型矿床(VHMS)和典型沉积岩容矿的硫化物矿床(SEDEX型)之间的过渡类型(一种新类型块状硫化物矿床),其矿化特征与伊比利亚型矿床相类似。Keketale Pb-Zn deposit is located in the south margin of the Altay orogenic belt. The ore bodies in the Devonian volcano-sedimentary basin occur in stratiform and lens shapes, and are closely hosted in volcanic-sedimentary rocks. Ore structures are predominantly banded, massive and mottled textures with relatively simple ore mineral composition. It is suggested that the deposit belongs to a volcanic-sedimentary rock-hosted massive sulfide deposit, i. e. , a new-type massive sulfide deposit or an intermediate type between typical volcanic rock-hosted massive sulfide deposit （ VHMS type） and typical sedimentary exhalative deposit （SEDEX type）. Mineralization characteristics are similar to that of “Iberian-type” deposits.

关 键 词：可可塔勒铅锌矿 火山-沉积盆地 伊比利亚(IPB)型 新疆 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]