OGG Newsletter #11 - August 2025 Highlights
OGG Newsletter #11 - August 2025 Highlights.
Earlier this year, OGG teamed up with top geologists from South Africa, Australia, and New Zealand for a powerful lecture series focused on the Witwatersrand goldfields, once the world’s biggest gold producer.
Key takeaways:
• The current gold model (placer) might not explain everything. A newer model (metamorphic hydrothermal) could offer better answers.
• South Africa still has huge gold potential - but new thinking, research, and better use of old data are needed.
• We must train the next generation of geologists to ask hard questions and challenge outdated models.
• There's a push to preserve 130+ years of mining data that could help unlock future gold finds.
Missed the talks? Catch them on YouTube here.
Want the full report? Read here.
The Overberg Geoscientists Group is a collective of geoscience professionals and enthusiasts dedicated to exploring the Earth's physical structure, from rocks and minerals to geological processes, across the greater Overberg region. The group engages in research, field studies, educational activitie...
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Read MoreOGG Newsletter #11 - August 2025 Highlights.
The excursion will originate at the Gansbaai Penguin Sanctuary Earth Age Display to set the scene for the geological history...
Here’s what’s been happening and what’s coming up for OGG members and friends.
Please diarise this event, and if you cannot make the breakfast itself, then join us on ZOOM at 11 am on the day.
From Everest climbs to new tech for geology students, the Overberg Geoscientists Group (OGG) has had a busy start to winter!
Dr Coetzee is the Executive Director of the Natures Valley Trust.