A series of online overview talks on topics relevant to economic geology.
Professor Ryan Mathur
Juniata College, Pennsylvania, USA
10:00am Australian Eastern Standard Time (AEST)
1st April 2021 (Thursday)
Professor Ryan Mathur will present the first of the EGRU State-of-the Art Talks. Ryan researches and teaches at a small liberal arts school in the Appalachian mountains of central Pennsylvania in the USA. His interests are focused on developing geochemical tools to aid in exploration geology and to understand ore deposit process.
This seminar will review the application of three recent advances in exploration geochemistry: the use of clay separates in the analysis of surficial materials, levelling of geochemical data for variable lithological background using principal components, and the application of machine learning to regional geochemical targeting. The advantages and limitations of these approaches will be illustrated through the use of applied case studies.
Dennis Arne has had a varied career in applied geochemistry that spans the petroleum industry, academia, government surveys and mineral exploration geochemistry, the latter as a consultant over the last 20 years. The niche into which he has wedged himself is the gap that commonly exists between research and application. Dennis currently operates a geochemical consultancy from northeast Victoria, Telemark Geosciences, where he works on projects for several companies exploring globally for a range of commodities.
Professor Thomas Blenkinsop
Cardiff University, Wales
16:30 AEST (UTC +10) Townsville, Australia
07:30 BST (UTC +1) Cardiff, UK
08:30 SAST (UTC +2) Johannesburg, South Africa
Friday 2nd July 2021
ZOOM - this seminar will be presented online and registration is required
Registration will open soon.
Strong structural controls on mineralization are characteristic of hydrothermal ore deposits. These arise because the permeabilities of crustal rocks are too low to allow deposit formation on realistic time scales unless rocks are deformed. A thorough structural investigation involves geometrical, kinematic (displacement and strain), dynamic (stress) and rheological analyses: each step can make important contributions to understanding hydrothermal mineralization. This talk will advocate a workflow based on these steps, and introduce some recent relevant advances in structural geology. The focus is on gold, but most aspects apply to hydrothermal deposits in general.
Tom Blenkinsop is a professor at the School of Earth and Environmental Sciences, Cardiff University. His research interests are in deformation and fluid flow, and applications of structural geology to natural resources. He works extensively with the exploration and mining industry, mainly on copper, gold and IOCG deposits. Tom graduated from Oxford University, and completed an M.Sc. at Imperial College before undertaking his doctorate at Keele University, and postdoctoral research at the University of California, Santa Barbara. He was professor at the University of Zimbabwe, and then at James Cook University in Australia, where he was director of the Economic Geology Research Unit. He has published over 150 papers and a textbook on deformation microstructures and mechanisms. Recently he has developed an online course in structural geology for exploration and mining. He is on the editorial advisory board for the Journal of Structural Geology and is an editor for Ore Geology Reviews.