| 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(Z1). |
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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： | 成都地质矿产研究所 四川成都610082
(沈敢富)，中国地质大学 湖北武汉430074
(杨光明)，成都地质矿产研究所 四川成都610082(徐金沙) |
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| 基金项目： | 国家自然科学基金项目 (40 2 72 0 2 7) |
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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polyakovite- (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 |
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(Z1). |
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| Authors: | SHEN Gan-fu YANG Guang-ming XU Jin-sha |
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| Institution: | SHEN Gan-fu1,YANG Guang-ming2,XU Jin-sha1 |
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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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