SRK UK holds a Geophysics Workshop in Cardiff

(08/01/2015) - A day long geophysics workshop was held by Terratec Geophysical Services at the SRK’s UK office in Cardiff on 8 January 2015.  The workshop came about as part of the continued collaboration between SRK and Terractec involving a number of mining-related projects in recent years, particularly in Africa.  Over 30 SRK staff attended the event, including hydrogeologists, geotechnical engineers and resource and exploration geologists.

The purpose of the workshop was to review advances in geophysical methods and recent applications specifically in the mining industry.  The workshop focussed on surface geophysical methods, with a short update on down-hole and airborne methods, including:

  • Electrical resistivity tomography (ERT) including cross-hole ERT
  • High resolution resistivity and induced polarisation (HIRIP)
  • Electromagnetics (MT, NSAMT, CSAMT, TDEM and slingram)
  • Down-hole methods: in-hole and off-hole
  • Airborne radiometrics and magnetics including UAV and VOXI 3D modelling

Highlights included HIRIP, an in-house method Terratec are developing which combines the resolution of near-surface ERT with the depth penetration of IP and synthetic modelling (forward modelling).  The technique uses available geological data for the project to develop a preliminary geophysical target prior to undertaking on-the-ground geophysics surveys, enabling enhanced planning of the latter to optimise survey results.

The updates on methods were furnished with a host of examples from recent projects with applications to mineral exploration, groundwater resources, fault location, tailings plume surveys and tailings dam integrity investigation.

geophysics diagram srk holds workshop in cardiff

Resistivity tomography (ERT) sections mapped with groundwater boreholes at a mine site in West Africa.

SRK United Kingdom