物探与化探2016,Vol.40Issue(5):923-928,6.DOI:10.11720/wtyht.2016.5.13
双频激电法在西澳矿产勘查中的应用
The application of dual frequency IP method to the exploration of mineral resources in Western Australia
摘要
Abstract
This paper briefly describes the principle and characteristics of the dual frequency induced polarization method on the basis of the application in typical overburden area ( savanna area coverage) of Western Australia, and discusses such aspects as to how to solve the problems met in work plan design, array selection, selection of working frequency, and conductivity improvement, and how to overcome inductively coupled problems under the special geological landscape condition. What is more, the authors give the solutions of these problems and make a summary of some work principles of universal value. In conclusion, the dual frequency induced polarization method has good application effect in the special environment of a gold mine in Australia, the delineation of the IP anomalies is consist⁃ent with the expectation of geologists, and engineering verification is necessary for further work. It is held that the dual⁃frequency IP method in the process of design and field construction in overseas mineral exploration work should be based on the comprehensive analy⁃sis of the influencing factors in various aspects as well as scientific decision⁃making, and effective measures should be adopted to elimi⁃nate the possible factors affecting the accuracy of the measurement data. Only in this way can we enjoy the full play of the technical ad⁃vantages of the dua⁃frequency IP method and obtain satisfactory results.关键词
双频激电法/隐伏矿体/幅频率/偶极-偶极装置/电磁耦合/澳大利亚Key words
dual frequency induced polarization/concealed orebody/amplitude frequency/dipole-dipole device/electromagnetic in-duction/Australia分类
天文与地球科学引用本文复制引用
王宏宇,李涛..双频激电法在西澳矿产勘查中的应用[J].物探与化探,2016,40(5):923-928,6.基金项目
国家自然科学基金项目“大深度三维矢量广域电磁法仪器研制”(41227803);国外矿产资源风险勘查专项资金项目 ()