| 广宁-罗定金矿带金矿成矿条件及预测 |
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| 引用本文： | 鲍庆忠.广宁-罗定金矿带金矿成矿条件及预测[J].地质与资源,2002,11(2):88-95. |
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| 作者姓名： | 鲍庆忠 |
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| 作者单位： | 1. 东北大学资源与土木工程学院, 辽宁 沈阳 110004;2. 沈阳地质矿产研究所, 辽宁 沈阳 110033 |
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| 基金项目： | 国家“八五”重点黄金地质科技攻关项目“广宁-罗定金矿带成矿条件研究及矿床预测”犤编号90051-05(01)-04犦资助. |
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| 摘 要： | 广宁-罗定断裂带隶属于粤西地区云开加里东褶皱系云开隆起，是广宁-罗定金矿带的控矿断裂带，前人曾把它称为断裂带、断褶带、断裂变质带、推覆构造带.目前，该矿带内已发现金矿床（点）120余处.自1983年以来，发现了河台等一系列大中型金矿，引起了对此矿带基础地质和成矿条件研究工作的重视.从目前的研究看，广宁-罗定金矿带内的一系列金矿床（点）均赋存于广宁-罗定韧性剪切带内，严格受剪切带内强变形糜棱岩-初糜棱岩带控制.河台金矿床、塔岗金矿点均为河台型金矿床，产于含炭细碎屑岩系中的韧性剪切带内.金矿床形成于韧性剪切构造活动的晚期构造扩容阶段，与印支期伍村单元花岗质岩石的侵入有明显的成因联系.通过对金矿带内金矿成矿条件研究及河台金矿典型矿床研究，成功地圈定出塔岗地区为广宁-罗定金矿带内的又一个最具找矿远景的预测靶区.进一步的工程验证，求得F级金矿储量8234kg.
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| 关 键 词： | 广宁-罗定金矿带 剪切带 花岗质岩石 金矿床 |
| 文章编号： | 1671-1947(2002)02-0088-08 |
| 收稿时间： | 2002-02-05 |
| 修稿时间： | 2002年2月5日 |
MINEROGENETIC CONDITIONS AND PROSPECT OF GUANGNING LUODING GOLD ORE BELT IN GUANGDONG PROVINCE |
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| BAO Qing-zhong.MINEROGENETIC CONDITIONS AND PROSPECT OF GUANGNING LUODING GOLD ORE BELT IN GUANGDONG PROVINCE[J].Geology and Resources,2002,11(2):88-95. |
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| Authors: | BAO Qing-zhong |
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| Institution: | 1. Institute of Resources and Civil Engineering, Northeast University, Shenyang 110004, China;2. Shenyang Institute of Geology and Mi neral Recourses, Shenyang 110033, China |
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| Abstract: | Guangning-Luoding fault belt in Yunkai uplift,Yunkai folding belt of Ca ledonian is a gold deposit-controlling fault belt,where more than 120gold d eposits have been found.The basic geology and minerogenetic conditions of gold deposits have been paid attention since 1983when a series of large gold deposits,such as Hetai gold depositetc.were discovered.The gold deposits are all located in Guangning-Luoding ductile shear zone and distributed stric tly in its mylonite-ultramylonite zones.Hetai and Tagang gold deposits are both t he Hetai-type,of which the gold deposits formed in the dilatancy period of the ductile shear zone,genetically related to Wucun ultra-unit granitic intrusiv e rocks.With studying on the minerogenetic condi tions and model deposit,some favora ble areas are delineated.One of them is Tagang target,from which an F-degree reserves of 8234kg gold is gained. |
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| Keywords: | Key words:Au deposit belt of Guangning-Luodin g ductile shear zone granitic rock Au deposit |
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