Combining multiple components of InfiniTEM® electromagnetic data to better represent subsurface anomalies

Abitibi g<s:1>物理设备有限公司从现有技术开发了一种名为InfiniTEM®的新系统，用于矿产勘探。该系统旨在定位和圈定加拿大的金属矿床。InfiniTEM系统是一个时域电磁系统。时变电流在铺设在地面上的发射机回路中流动。这种时变的电流产生时变的磁场，而这个磁场诱导电流在具有相对高导电性的地质特征（如金属矿床）中流动。在地表可以感应到感应电流的影响，从而揭示矿体的存在。导电地质特征的存在在InfiniTEM数据中以复杂的正负签名的形式表现出来。这种签名对于非专业人士来说很难解读。因此，该项目的目标是开发一种数据处理技术，将导体的复杂、偶极的InfiniTEM特征转换为单个、简单、一致的峰值。

Abitibi Géophysique, inc., have developed from existing technology a new system, called InfiniTEM®, for mineral exploration. The system is designed to locate and delineate metallic ore deposits in Canada. The InfiniTEM system is a time-domain electromagnetic system. A time-varying electric current flows in a transmitter loop laid out on the ground. This time-varying current creates a time-varying magnetic field, and this magnetic field induces electric currents to flow in geological features, such as metallic ore deposits, that have relatively high electrical conductivities. The effects of the induced currents can be sensed at the surface, thus revealing the presence of an ore body. The presence of a conductive geological feature manifests itself in InfiniTEM data in the form of a complicated, positive-to-negative signature. Such signatures are difficult for the non-specialist to interpret. The goal of this project, therefore, is to develop a data processing technique that will transform the complicated, dipolar InfiniTEM signature of a conductor into a single, simple, consistent peak.