广西下雷锰矿区定量岩相图编制及其意义

金属矿山 ›› 2015, Vol. 44 ›› Issue (03): 128-132.

广西下雷锰矿区定量岩相图编制及其意义

谢华¹，伊海生^2,3，张超²，赵香玲¹，李勇⁴，李启来²

1.成都理工大学地球科学学院，四川成都 610059；2.成都理工大学沉积地质研究院，四川成都 610059；3.油气藏地质及开发工程国家重点实验室，四川成都 610059；4.核工业280研究所，四川广汉 618300

出版日期:2015-03-15 发布日期:2015-07-31
基金资助:
* “十二五”国家科技支撑计划项目（编号：2011BAB04B10），国家自然科学基金项目（编号：40972084），教育部博士点基金项目（编号：2010512211013）。

Compilation and Geological Implication of the Quantitative Lithofacies Map of Xialei Manganese Deposit，Guangxi Province

Xie Hua¹，Yi Haisheng^2,3，Zhang Chao²，Zhao Xiangling¹，Li Yong⁴，Li Qilai²

1.College of Earth Sciences，Chengdu University of Technology，Chengdu 610059，China；2.Institute of Sedimentary Geology, Chengdu University of Technology，Chengdu 610059，China；3.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Chengdu 610059，China; 4.The 280 Institute of Nuclear Industry，Guanghan 618300，China

Online:2015-03-15 Published:2015-07-31

摘要/Abstract

摘要： 以广西下雷锰矿区为例，通过对大量钻孔剖面资料进行整理、分析和统计，提取出锰矿区矿层数、矿层累计厚度、夹石累计厚度、矿层顶板厚度、矿层底板厚度等5类成矿参数，给出了岩相图编制的详细步骤，进而编制出定量岩相图、成矿参数等值线图。以岩相图为基础，结合上述5类成矿参数，对岩相分布、岩石组合特征与锰成矿之间的关系进行分析。结果表明，矿层数最多、矿层累计厚度最大、夹石累计厚度最大、矿层顶板厚度最大、矿层底板厚度最大的矿段主要分布于硅质岩相区；锰成矿主要受控于硅质岩相，硅质岩类的岩石组合特征控制了锰矿的沉积背景，锰矿主要沉积于深水宁静环境中。

关键词: 定量岩相图, 成矿参数, 岩相分布, 岩石组合特征, 硅质岩

Abstract: Taking the Xialei manganese deposit in Guangxi province as the research object，the large amount of the drilling data is sorted，analyzed and counted so as to obtain the five types of ore-forming parameters such as the number of seam，cumulative seam thickness，cumulative stone thickness，seam roof thickness，and seam floor thickness.The compilation process of lithofacies map is given in detail，and then，the lithofacies map and ore-forming parameters contour map are compiled.Based on the lithofacies map，the relationship between the characteristics of lithofacies distribution and rock association and the ore-forming process of manganese are analyzed.The results show that，the siliceous rock blocks usually owns the maximum number of seam，cumulative seam thickness，cumulative stone thickness，seam roof thickness and seam floor thickness; Manganese ore is mainly controlled by the siliceous rocks，and the sediment background of manganese ore deposit is controlled by the siliceous rock combination features.Manganese ore is mainly deposited in the environment of deepwater and tranquility.

Key words: Quantitative lithofacies map, Ore-forming parameters, Lithofacies distribution, Rock combination features, Siliceous rock

谢华, 伊海生, 张超, 赵香玲, 李勇, 李启来. 广西下雷锰矿区定量岩相图编制及其意义[J]. 金属矿山, 2015, 44(03): 128-132.

XIE Hua, YI Hai-Sheng, ZHANG Chao, ZHAO Xiang-Ling, LI Yong, LI Qi-Lai. Compilation and Geological Implication of the Quantitative Lithofacies Map of Xialei Manganese Deposit，Guangxi Province[J]. Metal Mine, 2015, 44(03): 128-132.

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