| 四川甲基卡地区花岗岩型稀有金属矿找矿规律及标志 |
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| 作者姓名： | 秦宇龙 郝雪峰 徐云峰 王显锋 |
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| 作者单位： | （四川省地质调查院，成都 610081） |
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| 摘 要： | 四川甲基卡地区位于青藏高原东部扬子板块西缘巴颜喀拉地块,是我国重要的花岗岩型稀有金属矿成矿远景区,分布其中的甲基卡伟晶岩型稀有金属矿床是我国规模最大的固体锂矿床,形成了Li-Be-Nb-Ta等成矿系列。通过对甲基卡伟晶岩型稀有金属矿床成矿条件、含稀有金属伟晶岩脉分类、稀有元素矿物期次划分及产出特征、稀有元素品位变化规律及富集规律、矿床成因及找矿标志的分析研究,探讨了该区锂矿的成矿规律,总结出了寻找甲基卡式锂矿的一系列重要找矿标志,对矿床外围及区域其他相似地质条件地区找矿工作具有一定的指导意义。
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| 关 键 词： | 四川 伟晶岩 稀有金属元素 成矿规律 找矿标志 甲基卡 |
Metallogenic Regularity and Prospecting Criteria of Granite Type Rare #br#
Metal Deposits in Jiajika Area,Sichuan Province |
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| Authors: | QIN Yu-long HAO Xue-feng XU Yun-feng WANG Xian-feng |
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| Institution: | (Sichuan Institute of Geological Survey, Chengdu 610081, China) |
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| Abstract: | Jiajika is an important granite type rare metal prospecting area in Balyanlkalla Block which is the junction belt between the eastern part of Qinghai-Tibet Plateau and western margin of the Yangtze Plate. Jiajika pegmatite type rare metal deposit with Li-Be-Nb-Ta metallogenic series is the largest solid lithium deposit in China. Based on a comprehensive study of the metallogenic condition, dike type, mineral stage, occurrence, ore-grade variation, concentration regularity, genesis, and prospecting criteria of Jiajika pegmatite type rare metal deposit, the metallogenic regularity and regional prospecting criteria of Jiajika type lithium deposit are summarized. These provide guiding effect for ore prospecting in peripheral of Jiajika deposit and Jiajika area under similarity geological conditions. |
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| Keywords: | Sichuan pegmatite rare elements metallogenic regularity prospecting criteria Jiajika |
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