SA AIG Geopub – Feb 2023

Australian Institute of Geoscientists > Events > SA AIG Geopub – Feb 2023

SA AIG Geopub – Feb 2023


DATE-TIME

Date(s) - Thursday, 02/02/2023
6:00 pm - 7:30 pm

Location
Coopers Ale House at The Earl

Category(ies)

Date

Thursday February 2nd
Time: 6pm – 7:30pm (talk starts 6.30)


 

Venue

Coopers Alehouse at the Earl, 316 Pulteney Street Adelaide


Presenter

John Anderson, Austrike Resources, Minerals Discovery Consultant
John will detail his re-interpretation of some of the rocks and sediments in and around South
Australia’s hematite Iron Oxide Copper Gold style deposits.


The Tectono-Stratigraphy of the Olympic Metallogenic Event

Hypothesis:

Another opportunity was spotted to turn South Australia’s geology on its head and re-invigorate mineral targeting. After identifying weaknesses in the dogma for the well-preserved Emmie Bluff hematitic IOCG system in the 2020 Gawler Challenge, the public data were followed up in more detail during 2022 with surprising results.

Previous attempts to explain inconsistencies with stratigraphic assumptions, such as Pandurra-like inclusions deep in Olympic Dam and basement overlying unmetamorphosed sediments at Emmie Bluff, required complex long-haul faulting and decollements contrary to the otherwise preserved deposits. And did you ever wonder how the sedimentary basin that collapsed into most of the HIOCG pipes disappeared from SA’s geological record?

Old experience, new concepts and Occam’s Razor are applied to core photos, historic logs,
spectral/geochemical data from SARIG, integrated with left-field sedimentological studies of the
Pandurra Formation.

The new tectono-stratigraphic model:

  1. collectively resolves several enigmas for HIOCG deposits under the Stuart Shelf
  2. disrupts current targeting dogma, and
  3. will expedite further discoveries through new research priorities and exploration strategies.

Sponsors

Proudly sponsored by Euro Exploration Services euroex.com.au


First Thursday of every month the South Australian branch of the Australian Institute of Geoscientists holds informal geoscientific talks in a casual setting. Attendence at this meeting can also contribute towards AIG’s Registered Professional Geoscientist (RPGeo) program (see https://www.aig.org.au/)