| 蒋文程,张有军,谭宁,高攀,段焕春.厄立特里亚阿斯马拉(Asmara)铜金多金属成矿带研究进展[J].矿产勘查,2017,8(4):700-707 |
| 厄立特里亚阿斯马拉(Asmara)铜金多金属成矿带研究进展 |
| Progress of geological study in Asmara copper-gold polymetallic metallogenic belt, Eritrea |
| 投稿时间：2017-02-09 |
| DOI： |
| 中文关键词: 阿斯马拉铜金多金属成矿带 块状硫化物矿床 造山型金矿 成矿规律 厄立特里亚 |
| 英文关键词: Asmara copper-gold polymetallic metallogenic belt, VMS, orogenic gold deposit, metallogenic regularity, Eritrea |
| 基金项目:中央地勘基金项目(编号:[2011]D3-05)资助。 |
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| 中文摘要: |
| 阿斯马拉铜金多金属成矿带位于非洲东北部的厄立特里亚中部,是厄立特里亚重要的成矿带之一。文章在成矿地质特征,地球化学特征,Cu、Zn、Au、Ag等金属矿成矿规律研究的基础上,对Emba Derho铜锌矿床、Debarwa锌铜矿床、Adi Nefas铜金矿床和Gupo金矿4个典型矿床特征进行了分析,总结了阿斯马拉(Asmara)成矿带成矿规律和找矿潜力。该带的主要矿床类型有火山块状硫化物矿床和造山型金矿,Cu、Zn、Au、Ag等金属块状硫化物矿床主要发育于双峰式火山岩中,造山型金矿主要发育于韧性剪切带的石英脉中。 |
| 英文摘要: |
| The Asmara Cu-Au polymetallic metallogenic belt is one of the important polymetallic belts in the middle of Eritre. Based on studies of geology, geochemistry and metallogenic regularity of known deposits in the area, four typical deposits,i.e., Emba Derho Cu-Zn, Debarwa Zn-Cu, Adi Nefas Cu-Au and Gupo Au deposits, have been analyzed. By the study on the typical deposits, the metallogenic regularity and prospecting potential in Asmara metallogenic belt were summarized. The types of deposits include volcanic-associated massive sulfide deposit and orogenic gold deposit in this belt. The polymetallic sulfide deposits are mainly hosted by bimodal volcanic rock, but the orogenic gold deposit is found in shear zone-hosted quartz vein. |
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