| 厚结壳的形成条件及控制因素分析 |
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| 引用本文：.2007.Formation conditions and control factors of thick Co-rich ferromanganese crusts[J].Mineral Deposits,26(3):296~306 |
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| 基金项目:国际海底区域研究开发“十五”富钴结壳特征对比及资源远景评价（dy-01-01-8） |
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| 中文摘要:当前对于大洋厚结壳的研究较少，而厚结壳是未来开发利用的重点，同时它记录的地质历史长，控制和影响结壳生长发育的各种因素必然能在厚结壳上充分体现出来。因此，开展厚结壳的形成条件及控制因素的研究，具有重要的理论与现实意义。文章利用GIS空间分析技术与地质统计方法，对厚结壳的定义、结壳厚度与水深、结壳厚度与基岩、结壳生长与构造活动、结壳厚度与沉积速率、结壳厚度与经纬度、结壳厚度与主成矿元素之间的关系进行了分析，结果表明，结壳的厚度变化受控于水深、基岩、构造活动、沉积速率、经纬度等因素，同时结壳厚度与主成矿元素之间存在明显的相关性。 |
| 中文关键词:地质学 富钴结壳 厚度 形成条件 控制因素 |
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| Formation conditions and control factors of thick Co-rich ferromanganese crusts |
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| Abstract:Researches on thick cobalt_rich ferromanganese crusts have been insufficient in spite of the facts that thick crusts are very important in exploitation and development of potential resources and that, as these crusts have experienced a long geological history, they have embodied all kinds of factors controlling and affecting their development. It is therefore of great theoretical and practical significance to investigate the formation conditions and controlling factors of thick cobalt_rich ferromanganese crusts. The relationships of such controlling factors of the Co_rich ferromanganese crust as depth, basement rocks, tectonic setting, sedimentary rate, longitude and latitude, main ore_forming elements and thickness are analyzed in detail in this paper with the help of GIS spatial analysis and geological statistic methods. The results indicate that the thickness of the crust is controlled by above factors and related to main metallogenic elements. |
| keywords:geology, Co_rich ferromanganese crust, thickness, formation conditions, controlling factor |
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