Effect of Karst Geomorphology on the Sedimentary Mineralization and Geochemical Distribution of Bauxite: An Example from the Xiaoyuan Area in Qingzhen, Guizhou Province

被引：4

作者：

Mo, Hongcheng ^{[1
,2
]}

Yang, Ruidong ^{[1
,2
]}

Luo, Chaokun ^{[1
,2
]}

Li, Xinzheng ^{[1
,2
]}

Ji, Yanbing ^{[1
,2
,3
]}

Yang, Guiyuan ^{[1
,2
]}

Zhou, Xumei ^{[1
,2
]}

Gao, Chuanqian ^{[1
,2
]}

Hu, Xu ^{[4
]}

Zeng, Zhimeng ^{[4
]}

机构：

[1] Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China

[2] Guizhou Univ, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang 550025, Peoples R China

[3] Chinese Acad Sci, State Key Lab Ore Deposit Geochem, Inst Geochem, Guiyang 550002, Peoples R China

[4] Guizhou Bur Geol & Mineral Explorat, Geol Party 115, Qingzhen 551400, Peoples R China

来源：

MINERALS | 2023年 / 13卷 / 08期

基金：

中国国家自然科学基金;

关键词：

karst bauxite; terrain modeling; paleogeomorphology; mineral genesis; elemental behavior; ore-forming; RARE-EARTH-ELEMENTS; BEARING ROCK SERIES; WESTERN GUANGXI; DEPOSIT; FRACTIONATION; EVOLUTION; GENESIS; CHINA; REDISTRIBUTION; MOBILITY;

D O I：

10.3390/min13081013

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Bauxite, in central Guizhou, is predominantly karst bauxite, but there is insufficient research on the effect of karst paleogeomorphology on bauxite development. Xiaoyuan bauxite is also a karst bauxite, and high- and low-iron bauxite deposits exist in the study area. This study conducts geological modeling of karst bauxite using controlled-source audio-frequency magnetotelluric (CSAMT) data and drill core data. The effects of karst paleogeomorphology on bauxite deposition and mineralization are evaluated by assessing karst paleogeomorphology, conducting a mineralogical analysis of drill cores at different locations, and determining the geochemical distribution characteristics of the elements in the horizontal and vertical directions. Combined with previous research results, we propose two metallogenic processes of high-iron and low-iron bauxite. The findings are significant for understanding the mechanism of bauxite formation.

引用

页数：24