Rocks never lie to young geologist
From childhood rock collections to cutting-edge research, David Russo is helping uncover the ancient history hidden beneath Johannesburg.
As Wits University geology student David Russo sees it, every rock has a story waiting to be uncovered.
What began with childhood curiosity and rock samples brought home by family members working in the mining industry has grown into a passion for understanding some of South Africa’s oldest geological secrets. Russo, who has studied at Wits since 2018, has just completed his master’s degree and is preparing to begin a PhD focusing on the Witwatersrand basin – one of the world’s richest gold-bearing geological formations. His fascination lies in understanding where the ancient sediments that formed the basin came from, and how they became so rich in gold and other valuable minerals. “I’ve grown up around these rocks my whole life and being able to understand how these deposits formed is something I’m incredibly passionate about.”
Read more: Wits geology master shares why every stone tells a story
While his recent master’s research examined part of the bushveld complex, home to the world’s largest platinum, chromium, and vanadium deposits, it also reinforced one of the biggest lessons geology has taught him: The rocks often challenge your assumptions. “You may begin a project believing one thing, only for the evidence to point somewhere completely different. The rocks are always right – you just have to learn how to read them.”
Russo credits Wits geology professor Jill Drennan as a major influence, describing her as an inspiring mentor who makes complex concepts accessible while encouraging students to think independently. Although much of his research involves laboratories, mapping, and analysing data, fieldwork remains his favourite part of geology. “Every day outdoors is different. You’re surrounded by nature, discovering places few people ever get to see.”
Also read: UJ scientist is a National Geographic Explorer
Russo believes geology offers exciting opportunities for young South Africans, as global demand grows for critical minerals needed for renewable energy and modern technology. “Everything begins with geology. The more we understand our rocks, the better we understand our country’s past – and its future.”
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