| 陕西洛翠山卡岩型金矿地质特征及秦巴地区东部矽卡岩金矿找矿方向 |
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| 引用本文： | 李六全.陕西洛翠山卡岩型金矿地质特征及秦巴地区东部矽卡岩金矿找矿方向[J].陕西地质,2006,24(2):8-26. |
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| 作者姓名： | 李六全 |
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| 作者单位： | 陕西省地矿局综合地质大队,渭南,714000 |
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| 摘 要： | 洛翠山矽卡岩型金矿是商洛地区,乃至陕西省一种新类型金矿。矿体产于闪长岩与大理岩外接触带的镁橄榄石、透辉石矽卡岩和其外侧以热液交代作用为主生成的含白云石次生石英岩、铁方解石(或铁白云石)岩、石英黄铁矿(或黄铁矿石英)岩中。分铁铜金、铜金和单一金矿体三种矿体类型。由深到浅,由接触带向外具有的FeCuAu-CuAu-Au成矿分带特征。矿石自然类型达14种之多,矿石矿物成份较为复杂。将成矿分为三期(矽卡岩期、石英—硫化物期、表生期)、七阶段(矽卡岩阶段、氧化物阶段,石英—自然金生成阶段、石英—硫化物—自然金生成阶段、碳酸盐—硫化物—自然金生成阶段、无矿碳酸盐化与硅化阶段、氧化阶段);总结了六条主要找矿标志;对陕西境内秦巴地区东部提出了四个矽卡岩型金矿找矿有利区(带)。
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| 关 键 词： | 洛翠山 矽卡岩型金矿 找矿标志 秦巴地区东部 找矿方向 |
| 文章编号： | 1001-6996（2006）01-0008-19 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006-03-16 |
GEOLOGICAL FEATURES OF SKARN GOLD MINERALIZATION IN LUOCUISHAN AND SKARN GOLD PROSPECTING IN EASTERN QINLIN-DABASHAN AREA OF SHAANXI PROVINCE |
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| LI Liu-quan.GEOLOGICAL FEATURES OF SKARN GOLD MINERALIZATION IN LUOCUISHAN AND SKARN GOLD PROSPECTING IN EASTERN QINLIN-DABASHAN AREA OF SHAANXI PROVINCE[J].Geology of Shaanxi,2006,24(2):8-26. |
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| Authors: | LI Liu-quan |
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| Institution: | Geological Team of Shaanxi Bureau of Geology and Mineral Resources, Weinan 714000 |
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| Abstract: | The Luocuishan skarn gold deposit,a new type of gold deposit in Shaanxi province,is located in the Shangluo district of the province.The gold ore bodies,occurring in the external contact between diorite and marble,associate with forsterite,diopside skarn and dolomite-bearing secondary quartzite,ferroan calcite(or ankerite) and quartz pyrite that formed by hydrothermal metasomatism at external sides.The ore bodies can be divided into three types and zones of FeCuAu-CuAu-Au from bottom to top.The 14 types of natural ores are recognized and the components of ore materials are complicated.The gold mineralization can be divided into three phases(skarnization,quartz-sulfurization and epigenization) and seven steps(skarnization,oxidation,formation of quartz-nature gold,quartz-sulfide-natural gold,and carbonate-sulfide-natural gold,non-mineralized carbonation-silication and oxidation).Six ore prospecting indicators and four skarn-type gold mineralized areas in eastern Qinling-Dabashan areas of Shaanxi province are recommended in this paper. |
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| Keywords: | Luocuishan skarn-type gold deposit prospecting indicator eastern Qinling-Dabashan region prospecting guide |
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