| 牦牛坪矿-(Ce):一种新发现的稀土元素矿物 |
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| 引用本文： | 沈敢富, 杨光明, 徐金沙. 牦牛坪矿-(Ce):一种新发现的稀土元素矿物[J]. 沉积与特提斯地质, 2005, 25(1-2): 210-216. |
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| 作者姓名： | 沈敢富 杨光明 徐金沙 |
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| 作者单位： | 1.成都地质矿产研究所,四川 成都 610082; 2.中国地质大学,湖北 武汉 430074 |
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| 基金项目： | 国家自然科学基金项目(40272027) |
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| 摘 要： | 牦牛坪矿-(Ce)属硅钛铈矿亚族的新成员,发现于四川牦牛坪稀土矿床的碳酸岩、伟晶碳酸岩和碱性岩等矿脉中。与已知的同亚族矿物相比,新矿物要么是chevkinite-(Ce)B位上的Fe3+类似物,要么同时是po lyakovite-(Ce)B位和C位上的Fe3+类似物。牦牛坪矿-(Ce)直接从一类富F、水和REE的岩浆-热液过渡阶段的成矿流体中结晶所成。新矿物得名于产地和稀土元素中Ce居优。牦牛坪矿-(Ce)及其命名,已获国际矿物协会新矿物及矿物命名委员会投票批准。
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| 关 键 词： | 新矿物种 牦牛坪矿-(Ce) 硅钛铈矿亚族 稀土矿床 四川 |
| 收稿时间： | 2005-03-15 |
Maoniupingite-Ce: a new rare-earth mineral from the Maoniuping rare-earth deposit in Mianning,Sichuan |
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| SHEN Gan-fu, YANG Guang-ming, XU Jin-sha. Maoniupingite-Ce: a new rare-earth mineral from the Maoniuping rare-earth deposit in Mianning, Sichuan[J]. Sedimentary Geology and Tethyan Geology, 2005, 25(1-2): 210-216. |
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| Authors: | SHEN Gan-fu YANG Guang-ming XU Jin-sha |
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| Affiliation: | 1.Chengdu Institute of Geology and Mineral Resources,Chengdu 610082,Sichuan,China; 2.China University of Geosciences,Wuhan 430074,Hubei,China |
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| Abstract: | Maoniupingite-Ce approved by IMA CNMMN as a new rare-earth mineral and a new member of the chevkinite subgroup is identified in the veins of carbonatites, pegmatitic carbonatites and alkaline rocks from the Maoniuping rare-earth deposit in Mianning, Sichuan. Compared with the known equivalents, the new mineral is interpreted to be either the Fe3+ analogue of chevkinite-(Ce) at the B site or the Fe3+ analogue of polyakovite-(Ce) at the B and C sites, and directly crystallized from a type of F-, water- and REE-rich mineralizing fluids during the transitional stages of magmatic-hydrothermal processes. |
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| Keywords: | new mineral species maoniupingite-Ce chevkinite subgroup rare earth deposit Sichuan |
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