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| 沐川太平砂岩型铼钼（饿）矿点的地质特征和矿化时代 | |
| 引用本文： | 曹志敏,骆耀南,等.沐川太平砂岩型铼钼（饿）矿点的地质特征和矿化时代[J].地质学报,2002,76(1):95-99. |
| 作者姓名： | 曹志敏 骆耀南 |
| 作者单位： | 1. 青岛海洋大学地学院,266003南京大学内生矿床成矿机制国家重点实验室,210093 2. 四川省地质勘查局,成都,610041 3. 南京大学内生矿床成矿机制国家重点实验室,210093 4. AIRIE Program,Colorado State University,Fort Collins,美国 |
| 基金项目： | 国家重大基础研究发展规划项目(编号 G1999043205)，国家自然科学基金资助项目(编号 49633110,40072037) |
| 摘 要： | 四川沐川县民主-太平-带含钼砂岩为一新矿化类型——沉积砂岩型铼钼（锇）矿点。X-射线粉晶衍射分析结果表明其中微-细晶鳞片状含钼矿物为晶质辉钼矿；高精度质谱分析发现辉钼矿中分散元素Re和铂族元素Os含量很高，具有重要的综合利用价值；高精度Re-Os同位素测年证明辉钼矿形成年龄与含矿的中生代红物学和矿床学均具有重要的理论意义和应用价值。 |
| 关 键 词： | 铼钼矿床 砂岩 辉钼矿 Re－Os同位素测年 四川 沐川县 矿化时代 地质特征 |
| 修稿时间： | 7/2/2001 12:00:00 AM |
Geological Characteristics and Mineralization Age of the Sandstone Type Re-Mo(-Os) Mineral Occurrence in Muchuan, Sichuan |
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| CAO Zhimin,LUO Yaonan,WANG Rucheng,H. J. STEIN,J. L. HANNAH,R. J. MARKEY College of Marine Geology,Ocean University of Qingdao,Qingdao, Bureau of Geology and Mineral Exploration and Development of Sichuan Province,Chengdu, National Key L.Geological Characteristics and Mineralization Age of the Sandstone Type Re-Mo(-Os) Mineral Occurrence in Muchuan, Sichuan[J].Acta Geologica Sinica,2002,76(1):95-99. | |
| Authors: | CAO Zhimin LUO Yaonan WANG Rucheng H J STEIN J L HANNAH R J MARKEY College of Marine Geology Ocean University of Qingdao Qingdao Bureau of Geology and Mineral Exploration and Development of Sichuan Province Chengdu National Key L |
| Abstract: | Mo-bearing sandstone discovered in the Minzhu-Taiping area, Muchuan County, Sichuan Province, is a new type of mineral deposit-sedimentary sandstone type Re-Mo (-Os) deposit. X-ray powder diffractionanalysis shows that the finely crystalline-microcrystalline scaly Mo-bearing mineral in the ore is crystalline molybdenite. High-precision mass spectrbmetry indicates that the contents of the dispersed element Re and plat-inum-group element Os are high in molybdenite. So the two elements can be recovered for industrial uses. High-precision Re-Os isotope dating suggests that the Muchuan Re-Mo (Os) deposit form in 202~206 Ma, synchroneously with the ore-bearing Mesozoic red bed basin sandstone. No sign of hydrothermal activity or tec-tonic setting has been found. The authors think that the molybdenite is the product of the syngenetic sedimenta-ry period. This discovery and research are of great theoretical significance and practical value for the study of mineralogy and the geology of mineral deposits. |
| Keywords: | Mo-bearing sandstone molybdenite high-precision Re-Os isotope dating Muchuan County Sichuan Province |
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