胶莱盆地东南部可能存在砾岩型金矿——自然重砂异常的启示  

INDICATION OF HEAVY MINERAL ANOMALY:PROBABILITY OF CONGLOMERATE GOLD DEPOSIT IN SOUTH-EASTERN JIAOLAI BASIN

作　　者：张素荣 杨俊泉 张应德 贺福清 相振群[1] 聂仁祥 

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]山东省第四地质矿产勘查院,山东潍坊261021 [3]大地工程开发(集团)有限公司,天津300000

出　　处：《资源与产业》2015年第2期60-63,共4页Resources & Industries

基　　金：中国地质调查项目(1212010633901)

摘　　要：砾岩型金矿是金矿床类型中一种重要的类型。不同类型金矿床对应于不同的金赋存状态,为从自然重砂金矿物异常角度寻找金矿床提供了可能。总结了鲁东地区自然重砂金矿物异常分布规律,结果表明该区金矿物异常具有呈群、带分布的特点,大多数金矿物异常均与地层、侵入岩及金矿床(点)关系密切。对胶州市孝源店子地区的自然重砂金矿物异常进行查证发现,该异常的产生与杜村组砾岩中含金有关,指示胶莱盆地东南部可能存在砾岩型金矿。莱阳群砾岩层是胶莱盆地砾岩型金矿的找矿方向。Conglomerate gold deposit is an important gold category. The occurrence form of gold vary its category, making finding gold possible according to the gold heavy minerals. This paper summarizes the distribution of gold heavy minerals in eastern Shandong, showing clustering and zoning anomalies, which are closely related to strata, intrusives and gold deposits （occurrences）. A field investigation on Dianzi gold heavy mineral anomaly, Xiaoyuan, Jiaozhou city reveals the anomaly is connected to the Ducun formation gold-bearing conglomerate, indicating conglomerate gold potentials in southern-eastern Jiaolai basin in its Laiyang group conglomerate.

关 键 词：砾岩型金矿 自然重砂 金矿物异常 胶莱盆地 鲁东 

分 类 号：P618.51[天文地球—矿床学]