云南关键矿产重要矿床成矿系列

Minerogenetic Series of Key Mineral Deposits in Yunnan Province,China

云南地处特提斯成矿域与滨太平洋成矿域交汇部位,地质构造复杂,岩浆活动频繁,成矿条件优越。本文将铅、锌、铜、锡、钨、金、银、磷、钛、稀土金属(16种)、稀有金属(9种)和分散元素(8种)列为云南优势关键矿产,总结其资源特征,并针对这些矿产开展矿床成矿系列研究。研究结果显示,全省共可划分出88个矿床成矿系列或亚系列,其中与以上优势关键矿产有关的矿床成矿系列或亚系列有48个,共118个矿床式;以成矿省为单元,华南(陆块)成矿省(云南部分)有8个矿床成矿系列或亚系列,16个矿床式;上扬子(陆块)成矿省(云南部分)有16个矿床成矿系列或亚系列,35个矿床式;三江(造山带)成矿省(云南部分)有19个矿床成矿系列或亚系列,57个矿床式;腾冲(造山带)成矿省有5个矿床成矿系列或亚系列,10个矿床式。按成矿时代,新生代矿床成矿系列或亚系列有16个、中生代12个、古生代12个、前寒武纪5个和跨中生代和新生代3个,成矿强度依次为新生代→中生代→古生代→前寒武纪。

Yunnan Province,located in the intersection of the Tethyan and the Circum-Pacific metallogenic domains,hosts complex geologic structures and frequent magmatic activities as well as favorable metallogenic conditions.This paper lists lead,zinc,copper,tin,tungsten,gold,silver,phosphorus,titanium,rare earth metals(16 species),rare resources(nine species)and rare scattered resources(eight species)as the dominant key minerals in Yunnan Province,summarizes their resource characteristics,and studies the minerogenetic series of these ore deposits.The results show that there are 88 minerogenetic series or sub-series,and 48 minerogenetic series or sub-series including 111 mineral deposit types related to these dominant key minerals in Yunnan Province.Taking the metallogenic province as the unit,there are eight minerogenetic series or sub-series including 16 mineral deposit types in the South China(continental block)metallogenic province(Yunnan part),16 minerogenetic series or sub-series including 35 mineral deposit types in the Upper Yangtze(continental block)metallogenic province(Yunnan part),19 minerogenetic series or sub-series including 57 mineral deposit types in the Sanjiang(orogenic belt)metallogenic province(Yunnan part),and five minerogenetic series or sub-series including ten mineral deposit types in the Tengchong(orogenic belt)metallogenic province(Yunnan part).Based on metallogenic epoches,there are 16 minerogenetic series or sub-series in Cenozoic,12 in Mesozoic,12 in Paleozoic,five in Precambrian and three in trans-Mesozoic and Cenozoic,with an increasing order of the metallogenic intensity from Cenozoic,Mesozoic,Paleozoic to Precambrian.