| 郭奎城.黑龙江省北大沟金矿床矿石特征及金的赋存状态研究[J].地质与勘探,2010,46(4):616-621 |
| 黑龙江省北大沟金矿床矿石特征及金的赋存状态研究 |
| Study of Ore Features and Gold Occurrence of the Beidagou Gold Deposit in Heilongjiang Province |
| 投稿时间：2010-03-01 修订日期：2010-06-07 |
| DOI： |
| 中文关键词: 北大沟 石英脉型金矿 赋存状态 |
| 英文关键词: Beidagou,quartz vein type gold deposit,occurrence |
| 基金项目:中央财政补助矿产勘查项目(编号:2006-029)资助。 |
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| 中文摘要: |
| [摘要]黑河市北大沟金矿床是近年来在大兴安岭燕山期成矿带发现的与火山热液有关的浅成
中-低温热液型金矿床,矿床的矿石类型主要为石英脉型。矿石的结构为半自形-它形粒状结构、交代结
构、胶状结构。矿石的构造为致密块状构造、稀疏浸染状构造、细脉状构造。金矿物为自然金,以裂隙金
为主,其次是粒间金,包裹金只占少数,金矿物以细粒为主,载金矿物主要为石英。金的赋存状态较简
单,属易浸型矿石,有用组分含量较高,具有较高的工业利用价值。北大沟金矿与三道湾子金矿的矿石
特征和金的赋存状态相似,显示北大沟金矿的深部及外围具有巨大找矿潜力。 |
| 英文摘要: |
| Abstract:The Beidagou gold deposit in Heilongjiang Province is a newly-discovered mesothermal-epithermal gold deposit related to the Yanshanian
volcanism,located in the Da Hinggan Ling Mountains metallogenic belt. The ore type of the Beidagou gold deposit is quartz vein type. The ore textures are
hypautomorphic-xenomorphic granular,metasomatic and colloidal. The ore is characterized by dense block,disseminate and veinlet structures. Gold appears
as natural gold at the state of intergranular,crevice and enclosure,occurring in the major gold-carrying mineral quartz. Gold minerals are commonly fine
grain size. The ore is easy leaching. It has useful composition and industrial value. The ore features and gold occurrence of the Beidagou gold deposit is sim鄄
ilar to the Sandaowanzi gold deposit,showing a great potential to search for other large-scale gold deposits at depth and in the surrounding areas. |
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