重庆高燕地区菱锰矿热水沉积成因地球化学证据

周维贵; 李余生; 朱明忠; 张自贤; 张俊; 韩旭渊; 黄治清; 王学明

doi:10.13686/j.cnki.dzyzy.2016.02.011

重庆高燕地区菱锰矿热水沉积成因地球化学证据

1.
成都理工大学地球科学学院, 四川成都 610059;

2.
重庆市地质矿产勘查开发局 205 地质队, 重庆 402160;

3.
河海大学文天学院, 安徽马鞍山 243031

详细信息

作者简介: 周维贵(1990-),男,硕士研究生,矿物学、岩石学、矿床学专业,通信地址四川省成都市成华区二仙桥东三路1号,E-mail//zhouwg1990@163.com

中图分类号: P618.32

收稿日期: 2015-03-23

修回日期: 2015-09-28

刊出日期: 2016-04-30

GEOCHEMICAL EVIDENCE FOR THE HYDROTHERMAL SEDIMENTARY ORIGIN OF RHODOCHROSITE DEPOSIT IN GAOYAN, CHONGQING

1.
College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China;

2.
No. 205 Geological Team, Chongqing Bureau of Geology and Minerals Exploration, Chongqing 402160, China;

3.
Wentian College, Hohai University, Ma'anshan 243031, Anhui Province, China

Received Date: 23 March 2015

Revised Date: 28 September 2015

Publish Date: 30 April 2016

摘要

摘要: 重庆高燕锰矿床位于晚震旦世秦巴成锰沉积盆地，主要赋存于陡山沱组顶部，以鲕粒或球粒状产出.为了查明其成因，在收集该区锰矿相关成果的基础上，对ZK129-3#、ZK115-7#、ZK127-7#、ZK133-7#、ZK115-11#五个钻孔的陡山沱组鲕状菱锰矿进行系统采样，并测试了包括Mn、Fe、P、SiO2、CaO、MgO、Al2O3和LOI在内的8个地球化学指标，进而运用指相元素地球化学分析了Mn/Al、（MgO/Al2O3）×102、Al/（Al+Fe+Mn）和SiO2/Al2O3比值.结果表明：重庆高燕菱锰矿受陆源物质的影响很小，与海洋沉积有关，主要是海洋自生产物；Al/（Al+Fe+Mn）和SiO2/Al2O3值则指示其沉积过程中有热水参与，是热水沉积的产物.
- 菱锰矿 /
- 陡山沱组 /
- 热水沉积成因 /
- 地球化学特征 /
- 重庆高燕地区
Abstract: The Gaoyan manganese deposit in Chongqing is located in the Late Sinian Qinba Mn sedimentary basin. The rhodochrosite ores occur in the top of Doushantuo Formation in the form of ooid or pellet. Based on previous researches, samples of the ooid rhodochrosite are systematically taken from 5 boreholes in the Doushantuo Formation to test the geochemical items of Mn, Fe, P, SiO2, CaO, MgO, Al2O3 and LOI. The values of Mn/Al, (MgO/Al2O3)×102 and SiO2/Al2O3 are analyzed with indicating element geochemistry. The results show that the rhodochrosite is mainly marine authigenic product related to marine sedimentation, with little affection of terrigenous material. The deposition process of rhodochrosite is involved with hot water. The rhodochrosite is the result of hydrothermal sediment.
- rhodochrosite /
- Doushantuo Formation /
- hydrothermal sedimentary origin /
- geochemical characteristics /
- Gaoyan area in Chongqing

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重庆高燕地区菱锰矿热水沉积成因地球化学证据

1. 成都理工大学 地球科学学院, 四川 成都 610059; 2. 重庆市地质矿产勘查开发局 205 地质队, 重庆 402160; 3. 河海大学 文天学院, 安徽 马鞍山 243031

作者简介: 周维贵(1990-),男,硕士研究生,矿物学、岩石学、矿床学专业,通信地址 四川省成都市成华区二仙桥东三路1号,E-mail//zhouwg1990@163.com

GEOCHEMICAL EVIDENCE FOR THE HYDROTHERMAL SEDIMENTARY ORIGIN OF RHODOCHROSITE DEPOSIT IN GAOYAN, CHONGQING

1. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China; 2. No. 205 Geological Team, Chongqing Bureau of Geology and Minerals Exploration, Chongqing 402160, China; 3. Wentian College, Hohai University, Ma'anshan 243031, Anhui Province, China

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1.
成都理工大学地球科学学院, 四川成都 610059;

2.
重庆市地质矿产勘查开发局 205 地质队, 重庆 402160;

3.
河海大学文天学院, 安徽马鞍山 243031

作者简介: 周维贵(1990-),男,硕士研究生,矿物学、岩石学、矿床学专业,通信地址四川省成都市成华区二仙桥东三路1号,E-mail//zhouwg1990@163.com

1.
College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China;

2.
No. 205 Geological Team, Chongqing Bureau of Geology and Minerals Exploration, Chongqing 402160, China;

3.
Wentian College, Hohai University, Ma'anshan 243031, Anhui Province, China