| 王方成.甘肃掉石沟铅锌矿矿床特征及找矿思路[J].地质与勘探,2010,46(5):836-843 |
| 甘肃掉石沟铅锌矿矿床特征及找矿思路 |
| A Preliminary Study on Mineralizational Structure of the YouqialangLead-Silver Deposit in Tibet |
| 投稿时间：2009-11-19 修订日期：2010-08-04 |
| DOI： |
| 中文关键词: 甘肃 掉石沟铅锌矿 矿床特征 找矿思路 |
| 英文关键词: Gansu, Diaoshigou lead-zinc deposit, deposit characteristic, prospecting ideas |
| 基金项目: |
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| 摘要点击次数: 2359 |
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| 中文摘要: |
| [摘要]掉石沟铅锌矿是敦煌地块南缘代表性的叠加改造层控夕卡岩型矿床。矿床赋存于敦煌
岩群第二岩组第二岩段的大理岩、石榴石透辉石夕卡岩及石墨斜长变粒岩、蚀变碎裂岩中,矿石类型主
要有夕卡岩型、蚀变碎裂岩型、石英脉型、石墨斜长变粒岩型,有用组分主要为Pb、Zn。铁锰帽及石墨斜
长变粒岩是矿床的直接找矿标志,铅族重砂异常及化探异常是间接的找矿标志。准确把握矿床的找矿
标志是寻找该类矿床有效途径,目前已在掉石沟外围发现多处铅锌矿点,说明在掉石沟铅锌矿区及外围
地区具有良好的找矿前景,进而提出了进一步找矿的新思路。 |
| 英文摘要: |
| Abstract:The Diaoshigou lead-zinc deposit is a typical skarn deposit controlled by superposition and reformed strata in the southern margin of the
Dunhuang block. It occurs in the marble, garnet-diopside skarn, graphite plagiogranulite, and altered cataclastic rock of the second section, second
group of the Dunhuang rock-group. The ore types include skarn, altered chipped rock, quartz vein, and graphite plagiogranulite types, with useful com鄄
positions of Pb and Zn. Iron and manganese caps and graphite plagiogranulite are the direct indicators, and lead clan placer anomalies and geochemical a鄄
nomalies are indirect markers for ore search. Grasping the ore prospecting markers is an effective way for search of these deposits. Lots of lead-zinc orepoints
have been found in the Diaoshigou area and its surroundings, showing a good prospect. And some new ideas for further survey in this region are pro鄄
posed in this paper. |
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