LATE CARBONIFEROUS PALEOGEOGRAPHY OF THE YANLONG BAUXITE DEPOSIT IN HENAN PROVINCE: Ore-controlling Significance
-
摘要:
河南省偃龙铝土矿床是近年通过整装勘查新发现的超大型铝土矿床,通过对大量钻孔岩心数据的分析比较,认为区内存在障壁岛沉积相、浅湖-潟湖沉积相、潮坪-沼泽沉积相等3种主要类型沉积环境.铝土矿成矿过程中,在局部的障壁岛沉积相环境无沉积成矿;在浅湖-潟湖沉积相环境下容易沉积成矿,铝土矿的沉积厚度与浅湖-潟湖沉积相下含矿岩系的沉积厚度呈中度相关关系;在潮坪-沼泽沉积相受沉积环境条件的影响,沉积成矿的条件较差.偃龙地区晚石炭世古地理特征决定了含矿岩系的厚度,但不直接控制铝土矿成矿厚度,而是在其他成矿条件耦合作用下,古地理通过控制铝土矿的沉积环境间接控制铝土矿的形成.
Abstract:The Yanlong bauxite deposit is a recently discovered super-large bauxite deposit. By analysis and comparison of a large number of drill core data, it is considered that there existed three main types of sedimentary environment in the area, namely barrier island facies, shallow lake-lagoon facies, and tidal flat-swamp facies. In local barrier island environment, there is no sedimentary mineralization. It is easy to deposit and mineralize in the shallow lake-lagoon environment, in which the thickness of bauxite is moderately correlated with that of ore-bearing rock series. In the tidal flat-swamp environment, the conditions for sedimentary mineralization are poor. The paleogeographic characteristics of Yanlong area in Late Carboniferous determine the thickness of ore-bearing rock series, yet not directly control the mineralization thickness of bauxite. Instead, it indirectly controls the formation by affecting the sedimentary environment combined with other metallogenic conditions.
-
-
[1] 陈旺.豫西石炭纪铝土矿成矿系统[D].北京: 中国地质大学, 2009: 41-49.
[2] 吴国炎, 姚公一, 吕夏.河南铝土矿床[M].北京:冶金工业出版社, 1996:79-96.
[3] 温同想.河南石炭纪铝土矿地质特征[J].华北地质矿产, 1996, 11(4)491-579. http://d.old.wanfangdata.com.cn/NSTLQK/10.1063-1.3112702/
[4] 智强, 廉松洲.孙坡-管茅铝土矿矿体特征及找矿标志[J].华北国土资源, 2011, 42(1):28-30. doi: 10.3969/j.issn.1672-7487.2011.01.011
[5] 陈丽娟, 张建东.豫西偃师南部铝土矿地质特征及控矿地质条件[J].地质找矿论丛, 2008, 23(2):144-148. http://d.old.wanfangdata.com.cn/Periodical/dzzklc200802011
[6] 周红春, 刘文波, 陈永才, 等.偃龙煤下铝地球化学特征及微地貌控制[J].现代矿业, 2015, 554(6):84-88. doi: 10.3969/j.issn.1674-6082.2015.06.033
[7] 李战明, 马晓辉, 郭锐, 等.河南大冶矿区晚石炭世岩相古地理特征及铝土矿找矿方向[J].地质找矿论丛, 2012, 27(4):433-439. doi: 10.6053/j.issn.1001-1412.2012.04.007
[8] 焦赞超, 梁会娟, 刘传权, 等.河南新安县郁山铝土矿床地质特征、成矿规律及成矿物质来源[J].西北地质, 2014, 47(1):221-233. doi: 10.3969/j.issn.1009-6248.2014.01.020
[9] 刘学飞, 王庆飞, 李中明, 等.河南铝土矿矿物成因及其演化序列[J].地质与勘探, 2012, 48(3):449-459. http://d.old.wanfangdata.com.cn/Periodical/dzykt201203003
[10] 陈旺.豫西石炭系铝土矿出露位置的控矿因素[J].大地构造与成矿学, 2007, 31(4):452-456. doi: 10.3969/j.issn.1001-1552.2007.04.010
[11] 李建全, 周红春, 曹高社, 等.河南省偃龙煤田深部铝土矿地质特征[J].地质与资源, 2016, 25(4):345-351. doi: 10.3969/j.issn.1671-1947.2016.04.007
[12] 李建全, 席善峰, 李书文, 等.铝土矿资源量估算新方法探讨[J].地质与资源, 2017, 26(4):366-369. doi: 10.3969/j.issn.1671-1947.2017.04.006
[13] 周红春, 李建全, 陈永才, 等.河南偃龙煤田深部铝土等矿种的相变关系及资源量估算方法[J].地质与资源, 2016, 25(5):458-463. doi: 10.3969/j.issn.1671-1947.2016.05.007
[14] 李建全, 冯帅, 安超, 等.河南省偃龙铝土矿床地球化学特征及成矿物质来源分析[J].地质与勘探, 2017, 53(4):704-714. http://d.old.wanfangdata.com.cn/Periodical/dzykt201704010
[15] 李战明, 马晓辉, 郭锐, 等.河南大冶矿区晚石炭世岩相古地理特征及铝土矿找矿方向[J].地质找矿论丛, 2012, 27(4):433-439. doi: 10.6053/j.issn.1001-1412.2012.04.007
[16] 杨式溥, 侯鸿飞, 高联达, 等.中国的石炭系[J].地质学报, 1980, (3):167-175. http://d.old.wanfangdata.com.cn/Periodical/dcxzz200003011
[17] 张源有.豫西铝土矿物质来源和化学沉积分异作用[J].地质与勘探, 1982(10):2-10. http://www.cnki.com.cn/Article/CJFDTotal-DZKT198210000.htm
[18] 周红春, 刘文波, 陈永才, 等.偃龙煤下铝地球化学特征及微地貌控制[J].现代矿业, 2015, 554:84-88. http://d.old.wanfangdata.com.cn/Periodical/xdky201506033
[19] 席善峰, 冯帅, 安超, 等.河南省偃龙地区铝土矿矿体厚度、A/S值变化特征研究[J].矿产与地质, 2017, 31(4):676-679. doi: 10.3969/j.issn.1001-5663.2017.04.004
[20] 袁见齐, 朱上庆, 翟裕生.矿床学[M].北京:地质出版社, 1979:265-309.
-