辽西柏杖子金矿控矿规律及成矿模式探讨

doi:10.11872/j.issn.1005-2518.2021.06.075

Abstract

Abstract:

Baizhangzi gold deposit is a typical magmatic hydrothermal deposit in the gold metallogenic belt of eastern Hebei and western Liaoning in China，and the orebody occurs in granite.After years of continuous mining，the amount of retained resources in the mine has gradually decreased.Therefore， it is of great significance to systematically carry out the research on the ore-controlling law in the mining area for the rational arrangement of prospecting projects and the increase of mine resource reserves.By summarizing the metallogenic geological conditions of Baizhangzi gold deposit and combining with the field geological survey，it is considered that the gold orebody in the mining area is mainly controlled by the combination of Baizhangzi rock mass and structural system.Among them，the primary joint-superimposed fracture inside the rock mass and the fracture outside the rock mass jointly control the vein orebody.The gold mineralization at the intersection of NE-trending and NEE-trending ore-bearing structure group is more developed，and it is easy to form altered rock type thick orebodies.Through comprehensive research，the metallogenic model of the mining area is established.It is considered that the metallogenic geological body of the Baizhangzi gold deposit is deep concealed rock mass，it is speculated that there may be porphyry orebodies in the depth of the mining area. The new quartz vein type orebody was found in the shallow part of Miaojingou in the southwest of the mining area，it suggests that there are quartz vein type and alter rock type orebodies similar to the those in the Baizhangzi rock mass in the depth.

Key words: vein-shaped orebody, altered rock type orebody, ore-controlling law, metallogenic model, deep concealed rock mass, Baizhangzi gold deposit, western Liaoning

CLC Number:

P618.51

Hailang QU,Shanlin CHENG,Yongzhe ZHANG,Boxin HU,Yanfei CUI. Ore-controlling Regularity and Metallogenic Model of the Baizhangzi Gold Deposit， Western Liaoning Province[J].Gold Science and Technology, 2021, 29(6): 795-804.

Figures/Tables 6

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Ore-controlling Regularity and Metallogenic Model of the Baizhangzi Gold Deposit， Western Liaoning Province

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