| 摘要: |
| 笔者对金沙矿区的上部铅锌矿床(上部矿),从含矿建造、矿体产出(产状)、形态、矿石物质组分和结构构造等特征,通过稀土元素和有机地球化学的分析对比,笔者认为金沙矿区上部矿与下部矿完全不同。上部矿床属于沉积-成岩-有机成因 |
| 关键词: 上部铅锌矿床 含矿建造 金沙矿区 |
| DOI： |
| 附件 |
| 投稿时间：1999-09-02 |
| 基金项目: |
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| The Upper lead-zinc deposit in the Jinsha mining district, Yongshan, Yunnan |
| QIU Ding-mao |
| (Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, Sichuan, China) |
| Abstract: |
| The Jinsha lead-zinc mining district in eastern Yunnan cons is ts of Jinsha, Guanfang and Yanshan ore blocks. The ore bodies are mostly concent rated in the Upper Sinian Dengying Formation and Lower Cambrian Meishucun Format ion. The deposits here may be assigned to two types: the Upper deposit in black-phosphorite formation and Lower deposit in light-coloured carbonate formation. The results of research on ore formation, occurrence and morphology of ore bodie s, ore composition, texture and structure, in conjunction with the data on REE a nd organic geochemistry have led the author to conclude that unlike the Lower de posit, the Upper deposit is of sedimentary-diagenetic-organic origin. |
| Key words: Upper lead-zinc deposit ore formation Jinsha lead-zinc mining district |
