大功率激发极化法及其在铜矿的应用

摘要

The uprated induced polarization methods have many characteristics like high transmitting power and strong supply current and can suppress all kinds of jamming signal and improve signal noise ratio. In the metal mineral exploration in recent years, especially in the new round of prospecting of searching for deep concealed and buried deposits, the induced polarization methods play important roles and get good prospecting effect. Based on the deep comprehension of the induced polarization methods system, this paper explores the basic principle and method of induced polarization methods, it mainly includes the relationship between frequency characteristics and time characteristics, common device principles and data interpretation methods of induced polarization methods. Based on these, this paper analyzes the characteristics of geology and geophysics in the work area, the quality evaluation of network arrangement, working methods and data collection of the field work. It deeply studies the two-dimensional inversion method of the induced polarization methods, this method gets good effect. At the end, this paper deduces and explains the treatment results in detail and takes the drilling verification at the vantage point in the mineralization.%大功率激发极化法具有发射功率大，供电电流强的特点，可以压制各种干扰信号，提高信噪比。在近年来的金属矿产勘查中，特别是在寻找隐伏矿和深部矿的新一轮找矿中，激电方法发挥了重要作用并取得了良好的找矿效果。文章在深入理解激发极化法物理机制的基础上，探究了激发极化法的基本原理和方法，主要包括频率特性与时间特性的关系、激发极化法的常用装置原理和激发极化法资料解释方法。在此基础上，分析了工区的地质及地球物理特征，野外工作的测网布设、工作方法及采集数据的质量评价。深入地研究了激电测深二维反演方法，并且处理效果较好。最后，对处理结果进行了详尽的推断解释，并在成矿的有利位置进行了钻孔验证。