摘要
依据澜沧铅矿2004～2010《全国危机矿山接替资源找矿勘查工作》项目所获,结合以往勘探采矿和科研成果,在原提出"上铅、下铜"金属分带规律的基础上,根据铜矿体下部有矽卡岩化和花岗斑岩脉以及上部铅矿石矿物中有辉钼矿、钨、锡矿化等异常现象,推断深部可能存在钼、锡、钨等的矿化类型(第三矿化带)。据此提出"层脉结合,远、近结合,拆墙扩储"的12字找矿新思路,调整工作部署、优选找矿靶区(位),终于在深部发现厚大斑岩型钼(铜)矿体,证实了预测。认为澜沧老厂矿床"三元矿化结构",实质上是一个完整的斑岩成矿系列,成矿时代为燕山晚期—喜马拉雅早期(始新统晚期为主),矿床成因为与隐伏岩体有关的中偏高温热液矿床。
In the development of 2004 -2010 《The Prospecting ＆ Exploration of Successive Resources of Crisis Mine of the Country》, in combination with the secondary development and study, on the basis of the original proposition ＂upper Pb, lower Cu＂ metal zonation rule, according to the anomaly of skarnization and granite porphyry vein in the lower of ore body, molybdenite, W, Sn metallogenesis in upper Pb ore, we infer that there maybe the metallogenesis type of Mo, Sn, W etc, （the 3rd metallogenesis zone） in the deep. There- fore, we put forward the new prospecting thinking ＂combine bed with vein, integrate the far with the near ones, tear down the wall and extend the reserves＂, adjust the work arrangement, optimize the prospecting target, discover the thick porphyry type Mo （Cu） ore body in the deep finally and confirm the prognosis. We think that the ＂triple metallogenesis structure＂ of Laochang ore deposit, Lancang is essentially a complete porphyry metallogene- sis series （system）. The metallogenesis period is Late Yanshanian-Early Himalayan （mainly Late Eocene）. It is the middle -high T hydrothermal deposit related with the buried rock body in genesis.
出处
《云南地质》
2013年第3期251-258,263,共9页
Yunnan Geology
关键词
三元矿化结构
火山-斑岩成矿系统
新思路新部署
深部重大突破
云南澜沧铅矿
Triple Metallogenesis Structure
Volcanic - Porphyry Metallogenesis System
New Thinking and Arrangement
Important Breakthrough in Deep
Lancang Pb Deposit, Yunnan
