豫西偃龙煤田深部铝土矿地质特征及矿床成因
偃龙煤田深部铝土矿区位于豫西铝土矿成矿区嵩箕铝土矿成矿小区，是豫西铝土矿成矿区的重要组成部分。区内铝土矿赋存于上石炭统本溪组中上部，下伏具有岩溶特征的寒武～奥陶纪灰岩，沉积相为滨岸泻湖泥岩相区，属海相沉积的一水硬铝石岩溶型矿床，矿体主要填充在岩溶作用形成的负地形之中。本文系统阐述了矿区的含矿岩系、矿床地质及矿石质量特征等，研究了本区铝土矿的成矿地质条件、矿床的展布规律和富集规律，对矿床成因及控矿因素进行了分析，指出铝土矿床分布在坳陷区边部及隆起区的过渡带，铝土矿的厚度和品质与本溪组厚度有着明显的正相关关系，预测深部仍有较好的成矿远景。...
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| Published in | 地质与勘探 Vol. 52; no. 4; pp. 627 - 634 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0495-5331 |
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| Summary: | 偃龙煤田深部铝土矿区位于豫西铝土矿成矿区嵩箕铝土矿成矿小区，是豫西铝土矿成矿区的重要组成部分。区内铝土矿赋存于上石炭统本溪组中上部，下伏具有岩溶特征的寒武～奥陶纪灰岩，沉积相为滨岸泻湖泥岩相区，属海相沉积的一水硬铝石岩溶型矿床，矿体主要填充在岩溶作用形成的负地形之中。本文系统阐述了矿区的含矿岩系、矿床地质及矿石质量特征等，研究了本区铝土矿的成矿地质条件、矿床的展布规律和富集规律，对矿床成因及控矿因素进行了分析，指出铝土矿床分布在坳陷区边部及隆起区的过渡带，铝土矿的厚度和品质与本溪组厚度有着明显的正相关关系，预测深部仍有较好的成矿远景。 |
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| Bibliography: | 11-2043/P Yanlong bauxite, geological characteristics, deposit genesis, ore-controlling factors LU Zheng-qing, CHAI Shi-gang, LIU Hui-xing, HE Xu-qi, QU Yu-bing, GAO Xuan, LI Xiao-rong, WANG Jian-mei （ The Fourth Geo-exploration Institute,Henan Bureau of Geo-exploration and Mineral Development,Zhengzhou,Henan 450001 ） The deep-seated bauxite deposit beneath the Yanlong coalfield lies in the Songji bauxite mineralization area of western Henan bauxite min- eralization area,which is an important component of the West Henan bauxite mineralizatiou district. The bauxite occurs in the middle-upper part of the upper carboniferous series Benxi Formation,underlain by the Cambrian -ordoviciau limestone with karst characteristics. The sedimentary tacies is coastal lagoon mudstone, belonging to diaspore type karst ore deposit in a marine setting. The ore body mainly occurs in the karst terrain. This paper describes the ore-bearing rock system,ore deposit geology and ore features of this area, discusses the metallogenic geolo |
| ISSN: | 0495-5331 |