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Bushveld Igneous Complex geologic map and mine locations. The Bushveld Igneous Complex (BIC) is the largest layered igneous intrusion [1] [2] within the Earth's crust. [3] It has been tilted and eroded forming the outcrops around what appears to be the edge of a great geological basin: the Transvaal Basin.
The Bushveld is one of the most mineral-rich regions of the world. This is due to the Bushveld igneous complex, an extremely rich saucer-shaped geological formation that stretches over more than 50,000 square kilometers.
These extruded rocks, containing minerals such as vanadium and platinum, are called the Bushveld Igneous Complex. The original extent of this rock upthrust involved about 250,000 square kilometres, and is sometimes called the Waterberg Supergroup .
Chromitite and anorthosite layered igneous rocks in Critical Zone UG1 of the Bushveld Igneous Complex at the Mononono River outcrop, near Steelpoort, South Africa. A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture.
The reserve includes a variety of landscapes including slopes, cliffs, crests, kloofs, rivers, wetlands and valleys. Although the area covers a diverse geological area, it consists mainly of the Magaliesberg mountain complex comprising two geological formations: the Transvaal System and the Bushveld Igneous Complex. These formations contain the ...
Mines of the Merensky Reef. The Merensky Reef is a layer of igneous rock in the Bushveld Igneous Complex (BIC) in the North West, Limpopo, Gauteng and Mpumalanga provinces of South Africa which together with an underlying layer, the Upper Group 2 Reef (UG2), contains most of the world's known reserves of platinum group metals (PGMs) or platinum group elements (PGEs)—platinum, palladium ...
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In the Bushveld Igneous Complex, two orebodies, the Upper Group 2 (UG2) and the Merensky Reef, host about 70% of the world's platinum group metals (PGM), and pose major extraction problems for the mining industry in their faults, dykes, joints, domes, iron-rich ultramafic pegmatoids, rolls and dunite pipes. The greatest mining problems, though ...