云南金矿带划分及成矿规律  

ON THE DIVISION OF AU METALLOGENETIC ZONE AND METALLOGENETIC RULE IN YUNNAN

作　　者：薛步高[1] 

机构地区：[1]云南省乡镇企业局,昆明650011

出　　处：《云南地质》2008年第3期261-277,共17页Yunnan Geology

摘　　要：云南岩金矿床可划分9条成矿带(区),金矿储量占全省岩金上表总储量96.42%,有充分代表性。金沙江—哀牢山富碱斑岩金矿带,包括北衙(大型)、金厂箐(中型)、小水井(大型)、长安(大型)等金矿,上表储量66.06 t,远景储量240 t。首次将小水井、长安金矿列为富碱斑岩型金矿床。广南—富宁矿集区,包括老寨湾(大型)、那能(中型)、堂上(中型)等金矿,上表储量35.889 t,工程控制储量达82.549 t。P31β、P32β、P3l等层位赋存玄武岩型金矿;D1、T1、T2层位赋存卡林型金矿,成因与岩浆活动有关,为燕山期中—低(主)温热液矿床,属扬子地块西南缘低温成矿区重要组成部分。The bedrock Au deposit of Yunnan can be divided into 9 metallogenetic zones （provinces）. The Au ore reserves of them amount to 96. 42% of total bedrock Au reserves on balance - sheet of Yunnan, which have the full representativeness. The Jinshajiang-Ailaoshan Au metallogenetic zone of porphyry rich in alkali includes Beiya （large scale ） , Jinchangqing （middle）, Xiaoshuijing （large） and Changan Au deposit （ large）, etc, with reserves on balance - sheet 66. 06 t, prospective reserves 240 t. The Xiaoshuijing and Changan Au deposits are first divided into the Au deposit type of porphyry rich in alkali. The Guangnan--Funing ore concentration region includes Laozhaiwan （large）, Naneng （ middle）, Tangshang Au deposit （ middle）, etc, with reserves on balance - sheet 35. 889 t, reserves controlled, by engineering 82t. 549 t. The Au deposits of basalt type occur in P2β^1, P2β^2, P2l, ere; the Au deposits of Carlin -type occur in D1, T1, T2. The genesis of them is related to the Yanshanian magmation. They are the Yanshanian middle - low T hydrothermal deposit, which belong to the important part of low T metallogenetic province of SW margin of Yangzi Massif.

关 键 词：成矿带(区)划分 富碱斑岩型金矿 玄武岩型金矿 卡林型金矿 云南 全省 

分 类 号：P618.51[天文地球—矿床学]