Publication Name: AEGC 2021
Authors: Asbjorn Norlund Christensen, Jon McLoughlin, Roland Hill
Date Published: September 2021
Number of Pages: 7
Abstract:
In 2019, MMG conducted a suite of thirteen deep crosshole Radio Image Mapping (RIM) tomographic surveys along the northern extension of the polymetallic Rosebery Mine in North-Western Tasmania. The RIM method is based on the attenuation of an electromagnetic wave in a material. A transmitter is located in one drill hole and a receiver in a nearby drill hole. The system measures the amplitude and phase difference between the transmitted and received signal. This determines the attenuation rate, which can be used to estimate the conductivity of the rock between the transmitter and the receiver. The positions of the transmitter and the receiver are varied to produce a tomographic data set.