贵州织金文家坝地区铝土质泥岩成因分析
Study on Formation Causes of Bauxitic Mudstone in Wenjia Dam Area,Zhijin,Guizhou
向奉祥 1孙亢1
作者信息
- 1. 中冶赛迪工程技术股份有限公司,重庆 400013
- 折叠
摘要
该文以贵州织金文家坝龙潭组下段铝土质泥岩为研究对象,结合沉积学、岩石学、地层学、矿床学、地球化学等理论和方法,划分了区域内龙潭组沉积相类型,认为铝土质泥岩为峨眉山玄武岩风化产物,经历了三个阶段的铝富集,但因峨眉山玄武岩风化作用不彻底,风化物中铝含量少,成岩后没有受构造运动抬升地表经受风化淋滤而未形成铝土矿.
Abstract
Taking bauxitic mudstone at the lower section of Longtan Formation in Wenjia Dam Area,Zhijin,Guizhou as the research object,combined with theories and methods related to sedimentology,stratigraphy,petrology,mineral deposit geology,geochemistry and so on,the sedimentary facies types of Longtan Formation in the region are divided.It's believed that bauxitic mudstone is the weathering product of Emeishan basalt,which has experienced three stages of aluminum enrichment.However,due to the incomplete weathering of the Emeishan basalt,the aluminum content in the weathered material is less,and the surface is not uplifted by the tectonic movement after diagenesis,and the bauxite is not formed by weathering and leaching.
关键词
铝土质泥岩/峨眉山玄武岩/沉积环境/龙潭组/文家坝Key words
bauxitic mudstone/Emeishan Basalt/sedimentary environment/Longtan Formation/Wenjia Dam引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据