摘要
革档金矿是近几年在滇东南地区新发现的较为典型的微细浸染型金矿,矿床中并伴生有较为丰富的Pt、Pd等有益铂族元素.矿化以浸染型为主,属浅成低温热液浸染型矿床.金为不可见金,成矿物质主要来源于泥盆系坡脚组地层,印支期基性岩浆侵入提供了部分成矿物质.通过对矿床地质地球化学特征、成矿物质来源和成矿物理化学条件的研究,阐述了矿床的成矿模式.
Gedang gold deposit is not only one of the typical micrograin-disseminated gold deposit in Yunnan-GuizhouGuangxi gold metallogenic province, Southwest China but also the first one that contains relative abundance of PGE in this type of gold deposit.Based on the research of regional geology and the characters of geology and geochemistry of Gedang gold deposit, the authors, by using the geochemistry and physicochemieal methods of trace element, rare earth element, stable isotope and fluid inclusions, have discovered that the main ore-forming materials come from the sedimentary rocks, part of the ore-forming materials come from the Mesozoic basic intrusives, and during the metallization there was Mesozoic meteoric water incooperatod into the ore-forming fluid. The authors have also concluded that it is a epithermal mierograin-disseminated gold deposit.
出处
《地质找矿论丛》
CAS
CSCD
1992年第4期24-34,共11页
Contributions to Geology and Mineral Resources Research
