Geochemical Evidence for Ore-Controlling Structure in the Lushi Area of East Qinling

详细信息   

• 责任者：Yang Ronghua (Henan Institute of Geological Survey ; Zhengzhou 450012 ; China) ; Meng Xiangang
• 刊名：Geology and Prospecting
• 出版年：2012
• 卷期：48(2)
• 关键词：多金属矿 ; polymetallic ores ; 构造控制 ; structural controls ; 地球化学异常 ; geochemical anomaly ; 秦岭 ; Qinling Mountains
• 页码：p.207-216
• 图表：5 illus., 1 table, 21 refs.
• 分类号：1001
• issnNo：ISSN0495-5331
• isbnNo：CN11-2043/P

摘要

///Hundreds of deposits and mine occurrences were found in the Lushi area, which is located at the intersection of the North China Block and Qinling tectonic belt, forming a unique metallogenetic background of geological structure. The Mesozoic porphyry molybdenum deposits and the associated vein-type lead-zinc deposits in east Qinling are presented in the fault intersection, swelling part and bending portions of faults where large mines and high-grade ores formed. The structural ore-controlling characteristics are supported by geochemical evidence in the Lushi area. The survey of water system sediments indicates that the geochemical anomalies of tungsten,molybdenum,lead and zinc are of large scales with high intensity and clear sub-bands and clear concentration centers that have a close relationship with regional fault structure systems. The spatial distribution of the geochemical anomalies of tungsten, molybdenum, lead and zinc in the Lushi area are effective prospecting indicators which can be used as reference for further exploration and development of similar deposits in the Lushi area and eastern China.