Geohug: Coffee Webinar Session – August 13

Australian Institute of Geoscientists > Events > Geohug: Coffee Webinar Session – August 13

Geohug: Coffee Webinar Session – August 13

 


Date

Friday, August 13, 2021
 


Venue

Online
 


11.00AM – Cam Knight – Stand-up Comic
11.10AM – Walid Salama – Mineral exploration in areas covered by Permian glacial sediments and sand dunes.
11.50AM – Happy Hour – Q&A + Networking
 

 


Our guest speaker

Walid Salama

Walid Salama is a senior research geoscientist and the leader of the Minerals and water team at CSIRO Mineral Resources in Perth, Western Australia. He joined CSIRO as a postdoc fellow in 2012. He received his PhD degree from Cairo University in Egypt in 2010. In 2007, he received a PhD fellowship from the German Exchange Academic Service (DAAD) and Joined the DFG-funded interdisciplinary research training group “Alteration and element mobility at the microbe-mineral interface”) at Friedrich-Schiller university in Jena. In CSIRO, he led and involved in 20 research projects for Au, base metals and Ni-Co exploration in weathered and covered terrains in Australia and Africa. His main objective is to introduce cost-effective methods for exploration through cover.

 


The Yamarna Terrane in the eastern Yilgarn Craton is a typical example of areas covered by Permian glacial cover and Quaternary sand dunes. The Yamarna Terrane is similar to many other areas in Western Australia such as NE Albany Fraser and the Paterson Orogen. We reconstructed the paleolandscape evolution in the Yamarna Terrane and identified a number of exploration techniques and sample media that precisely identified the location of buried gold mineralisation. Gold and arsenic anomalies are identified near surface in:

  • Ferruginous authigenic pisoliths within aeolian sand, a newly discovered sample medium within the top 3 m of the cover
  • Ferruginous authigenic pisoliths within the top of the Permian cover below 10 m of the aeolian sand
  • Arsenic and tungsten, the pathfinder elements for gold in the mineralisation, are concentrated by vegetation.

Partial extraction analytical techniques helped in understanding the behaviour and processes of Au and pathfinder element dispersion through cover.

 


Registration

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