沉积与特提斯地质2025，Vol.45Issue(4)：701-711,11.DOI:10.19826/j.cnki.1009-3850.2025.09008
综合物探方法在大关铝土矿勘查中的应用研究
Application research of comprehensive geophysical exploration methods in the exploration of Daguan bauxite
摘要
Abstract
Aluminum plays an extremely important role in the national economic development,and has been included in the list of strategic key minerals.As the main source of aluminum,the urgency of bauxite exploration has become increasingly prominent.Therefore,it is of great significance to study and construct an effective combination of geophysical exploration methods and technologies for the rapid search for concealed bauxite deposits.Aiming at sedimentary bauxite,this paper proposes that the main objective of geophysical exploration is to locate the top and bottom interfaces of ore-bearing strata.Taking the bauxite in Daguan County,Yunnan Province as an example,four geophysical exploration methods,namely audio magnetotelluric sounding,high-density resistivity,high-density induced polarization,and microtremor survey,are selected to carry out experimental research in combination according to geological and physical characteristics.Secondly,according to the experimental results of each method in the area,combined with geological data and drilling data,the exploration results of each method are discussed.Finally,favorable interpretation markers of"low apparent resistivity,high apparent polarization,and medium-to high-velocity characteristics"are established,and a combination of geophysical exploration methods for concealed bauxite deposits at different depths of less than 150 m(AMT and high-density resistivity method)and greater than 150 m(AMT and microtremor survey method)is constructed.关键词
铝土矿/音频大地电磁/激电/微动探测Key words
bauxite/audio magnetotelluric/induced polarization(IP)/microtremor survey分类
天文与地球科学引用本文复制引用
李富,夏时斌,梁生贤,王子正,郭阳,廖国忠,周邦国,陈子聪..综合物探方法在大关铝土矿勘查中的应用研究[J].沉积与特提斯地质,2025,45(4):701-711,11.基金项目
中国地质调查局项目(DD20240072,DD20230337,DD20240071,DD20242114) （DD20240072,DD20230337,DD20240071,DD20242114）
西南地质科技创新中心刘宝珺院士基金 （）
