| 云南宣威—罗平稀土(铁、钛)多金属矿成矿机理及找矿前景 |
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| 引用本文：杨平,马亚雄,张道红,江洪飞,白磊,汪永华.2013.云南宣威—罗平稀土(铁、钛)多金属矿成矿机理及找矿前景[J].地球学报,34(s1):207-213. |
| DOI：10.3975/cagsb.2013.s1.32 |
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| 中文摘要:云南东部宣威—罗平一带, 在二叠纪玄武岩两大喷发旋回顶部的古风化壳中, 发现两层稀土、铁、钛多金属矿化层: ΣREO 0.016%~0.52%、TFe 10.09%~49.44%、TiO2 1.08%~10.94%; 含矿层厚度8.0~35.0 m; 矿化体分布广, 呈层状、似层状。矿化层的形成经历了源(富稀土、铁、钛的玄武岩)—转(古风化淋积作用)—储(有利古地理环境)的成矿机理, 成为稀土、铁、钛多金属矿极具潜力的远景区。 |
| 中文关键词:稀土 铁 钛多金属矿 古风化壳 成矿机理 找矿前景 |
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| Metallogenic Mechanism and Ore-searching Prospect of REE (Fe, Ti) Polymetallic Deposits in Xuanwei-Luoping Area, Yunnan Province |
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| Abstract:In Xuanwei–Luoping area of eastern Yunnan Province, two REE, Fe, Ti polymetallic mineralized beds were discovered at the tops of paleoweathering crusts formed by two eruptive cycles of Permian basalts. The thickness of the ore-bearing beds is 8.0~35.0 m, and they contain ΣREO 0.016%~0.52%, TFe 10.09%~49.44% and TiO2 1.08%~10.94%. Mineralized bodies are widely distributed and assume stratified and stratoid forms. The formation of the mineralized bed experienced the metallogenic mechanism of initial source formation (basalts rich in REE, Fe and Ti) —transformation (leaching and infiltration of paleoweathering crust) —storage (stored in favorable paleogeographic environment), and hence this area has become a prospective area of great potential for REE, Fe, Ti polymetallic deposits. |
| keywords:REE iron titanium, polymetallic deposit paleoweathering crust metallogenic mechanism ore-searching prospect |
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