Hydrogeological Characteristics of the Yushan Bauxite Deposit in Xinan County, Henan Province

详细信息   

• 责任者：Luo Wenjin(Henan institute of Geology Survey ; Zhengzhou ; Henan 450001 ; China) ; Liu Baishun
• 刊名：Geology and Prospecting
• 出版年：2012
• 卷期：48(3)
• 关键词：铝土矿 ; bauxite deposit ; 矿床水文地质 ; mineral deposit hydrogeology ; 河南 ; Henan Province
• 页码：p.533-537
• 图表：illus., 3 refs.
• 分类号：1701
• issnNo：ISSN0495-5331
• isbnNo：CN11-2043/P

摘要

Based on the research on regional hydrogeological conditions, combining with geological structure characteristics of the Yushan bauxite deposit, this paper elaborates the hydrogeological characteristics of the Yushan bauxite deposit in Xin＇ an county, Henan Province. The aquifer in this deposit is dominated by fissure karst water in carbonate rocks and fissure water in clastic rocks, and the water abundance is medium to weak. The mudstone on the top of the Carboniferous Benxi formation mudstone, Taiyuan formation Mudstone of permo-Carboniferous （water-resistion roof layer） , and the nardstone at the lower part of Carboniferous Benxi Formation （water-resistion bottom layer） are the main impervious beds. The main recharge sources of groundwater include meteoric rainfall and underground runoff, while its major discharge forms include artificial water-taking and spring discharge. Fault zones usually serve as vertical channels which link different aquifers because of their water storage and conductivity. Underground water is the main source, and surface water and meteoric rainfall are the influencing factors of deposit water filling. Water-filled channels are the primary penetrated courses, and gushing channels can be formed locally. Therefore, the Yushan bauxite in Xin＇ an county is a karst water-filled deposit where the roof and bottom are filled with water directly, with an intermediately complex hydrogeological condition and dominant karst water filling.