24 March 2014 – Seminar

Details

When: 16:00 on Monday, 24 March 2014
Where: DIAS, Geophysics Section, 5 Merrion Square, Dublin 2, (library)

Speaker: Dr. Stephan Thiel (University of Adelaide)
Title: MT Down Under: From lithospheric-scale studies to geothermal applications

Abstract:

Australia is mainly characterized by Archean to Proterozoic lithosphere with vast mineral potential. Due to extended periods of tectonic inactivity and erosion, the regolith cover proves to be a major challenge to unravel the tectonic history of its terranes. This talk will highlight some examples of the use of MT to understand the large-scale tectonic architecture of the subcontinent. As a side product, the sedimentary cover provides a heat blanket over highly radiogenic granites in parts of the Australian continent, making Australia one of the most actively engineered geothermal prospects. The EGS targets differ significantly in their electromagnetic responses to conventional hydrothermal systems, yet MT proves a useful tool to image temporal variations due to geothermal fracking experiments.