Ecca

Dolerite

Dolerite, the Karoo’s Fracking Game-Changer

South Africa’s Karoo Basin is one of the few shale gas plays in the world intruded by dolerite – an ancient, slow-cooled magma known locally as ironstone. What does it mean for frackers and fracking?

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Karoo, flat-topped mountains

Layer-Cake Karoo

The unique geology and flat-topped mountains of the Karoo have their origin in ancient inland seas, giant mountains and fiery lava.

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