四川虎牙雪宝顶W-Sn-Be矿床矿物学标型特征及流体对矿物形态的影响

刘琰; 邓军; 孙岱生; 周应华

四川虎牙雪宝顶W-Sn-Be矿床矿物学标型特征及流体对矿物形态的影响

刘琰^{1, 2,},
邓军^{1, 2},
孙岱生²,
周应华²

1.
中国地质大学地质过程与矿产资源国家重点实验室, 北京 100083
2.
中国地质大学岩石圈构造、深部过程及探测技术教育部重点实验室, 北京100083

基金项目:

教育部跨世纪优秀人才培养计划和科学技术研究重点基金项目 03178

教育部跨世纪优秀人才培养计划和科学技术研究重点基金项目 01037

国家自然科学基金项目 40572063

国家自然科学基金项目 40172036

详细信息

作者简介:
刘琰(1982—), 男, 博士研究生, 矿物学、岩石学、矿床学专业.E-mail：ly_@0620@126.com

中图分类号: P618.3
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- 被引次数: 0
出版历程
- 收稿日期: 2006-02-28
- 刊出日期: 2007-01-25

Morphology and Gensis Typomorphism of Minerals in W-Sn-Be Deposit of Huya, Sichuan

LIU Yan^{1, 2
,},
DENG Jun^{1, 2},
SUN Dai-sheng²,
ZHOU Ying-hua²

1.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geoscienees, Beijing 100083, China
2.
Key Laboratory of Lithospheric Tectonics, Ministry of Education, China University of Geosciences, Beijing 100083, China

摘要

摘要: 四川虎牙乡雪宝顶钨锡铍矿床产出宝石级绿柱石、白钨矿、锡石、电气石等矿物且晶形完好.共生矿物有长石、方铅矿、石英、方解石、云母等.绿柱石、白钨矿和锡石色彩绚丽, 其成分较为复杂, 类质同象现象普遍, 晶体形貌具有标型意义.对该区代表性矿物绿柱石、白钨矿、锡石等进行了成分研究、形貌描述及矿物共生组合特点分析, 从矿物标型特征、围岩蚀变类型确定了矿床属于高温热液云英岩脉型矿床, 在此基础上重点探讨了板状绿柱石成因.
- 晶体形态 /
- 标型特征 /
- 矿床类型 /
- 虎牙 /
- 四川
Abstract: Many kinds of gem-grade minerals such as beryl, scheelite, cassiterite and tourmaline, and sub-products such as K-feldspar, galenite, tabular quartz, tabular calcite and mica were found in beryl-scheelite vein deposit of Huya, Pingwu County, Sichuan Province. The major minerals like beryl, scheelite and cassiterite have relatively complicated chemical composition and remarkable isomorphism, which enables them to have typomorphic significance. Studies on the chemical composition, configuration and mineral assemblages of the typical minerals such as beryl, scheelite, cassiterite, feldspar and tourmaline of this area reveal the typomorphic significance of the mineral assemblage and it is determined that the deposit is a high temperature epithermal quartz vein deposit. So the appearance of the minerals tabular configuration is concerned with alkali-rich chemical composition, environment of the mineral and the direction of the mineralized hydrothermal liquid.
- crystal morphology /
- gensis typomorphism /
- type of deposite /
- Huya /
- Sichuan Province

HTML全文

图 1 a.厚板状白钨矿与平行连生的白钨矿雪宝顶白钨矿; b.白钨矿粒状集合体和针状电气石

Fig. 1. a.Thick tabular scheelite and parallel growth of beryl; b.Scheelite crystal and acicular turamaline

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图 2 白钨矿晶体理想形态(王濮等, 1987)

Fig. 2. Ideal drawing of scheelite

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图 3 锡石的理想形态(王濮等, 1982)

Fig. 3. Ideal drawing of cassiterite

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图 4 锡石晶体的不同形态

Fig. 4. Cassiterite crystal of different configures

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图 5 状电气石晶体

Fig. 5. Tourmaline crystal

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图 6 石的晶形标型(王濮等，1984)

Fig. 6. Ideal drawing of K-feldsPar

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图 7 钾长石实际形态

Fig. 7. Practical drawing of K-feldspar

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图 8 矿物生长受流体影响示意图

Fig. 8. Sketch map of crystal morphology affected by mineralizing fluid

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表 1 四川雪宝顶绿柱石化学成分(%)

Table 1. Chemical compositions of beryl samples from Xuebaoding, Sichuan Province

表 2 雪宝顶白钨矿的化学成分(%)

Table 2. Chemical compositions of scheelite from Xuebaoding, Sichuan Province

表 3 锡石化学成分(%)

Table 3. Chemical compositions of cassiterite

参考文献(34)

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