云南澜沧老厂多金属矿床矿化系统结构及找矿思路  

Mineralizing System Texture and Exploration Idea of the Laochang Polymetallic Deposits in Lancang,Yunnan

作　　者：李峰[1] 鲁文举 杨映忠 陈珲[1] 罗思亮[1] 石增龙 

机构地区：[1]昆明理工大学,昆明650093 [2]云南有色地质勘查局,昆明650051 [3]云南澜沧铅矿,云南澜沧665601

出　　处：《地质科技情报》2009年第6期45-50,共6页Geological Science and Technology Information

基　　金：国家危机矿山接替资源勘查项目(200653056)

摘　　要：云南澜沧老厂矿区由成因、形成时代、矿化类型和产出特征等均不同的6类矿体群组成,形成"六类一体"矿化系统。其中,包括3类与早石炭世火山喷流沉积作用有关的层状矿体群和3类与喜山期隐伏花岗斑岩有关的脉状和细脉状-浸染状矿体群,前者形成于大陆裂谷环境,后者形成于陆内碰撞造山环境。它们在空间上构成特有的"三层叠三带"的矿化结构。基于矿区"双系统同位叠加"成矿模式和良好的找矿潜力,确定了6个找矿靶区,并提出了深浅并举、综合找矿、分期交叉突破的找矿思路。There are six types of ore clusters in Laochang polymetallic deposits of Lancang, Yunnan, which are composed of poly-genesis, poly-epoch, poly-type and poly-occurrence ore bodies, and characterized by ＂six type in one＂ in mineralizing system. Three of them are stratabound ore clusters related to the Early Carboniferous volcano-exhalative sedimentary activity, which are formed in continental rift setting. The other three are vein and veinet -disseminated ore bodies related to Himalayan concealed granite-porphyry, which are formed in intracontinental collision orogenenesis setting. These six types of ore clusters constitute a special ＂three layers＋ three zones＂ mineralization texture in spatial distribution. Accordingly, this paper discusses six main prospecting targets and new exploration ideas based on the bio-system syntopogenic--superposition metallogenic model and great exploration potential.

关 键 词：矿化系统结构 成矿模式 找矿思路 澜沧老厂 

分 类 号：P624.6[天文地球—地质矿产勘探]