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The Barberton Mountain is a well preserved pre-3.0 Ga granite-greenstone terrane. The greenstone belt consists of a sequence of mafic to ultramafic lavas and metasedimentary rocks emplaced and deposited between 3.5 and 3.2 Ga. The granitoid rocks were emplaced over a 500 million year time span and can be divided into two suites.
Barberton is a town in the Mpumalanga province of South Africa, which has its origin in the 1880s gold rush in the region. It is situated in the De Kaap Valley and is fringed by the Makhonjwa Mountains. It is 43 kilometres (27 mi) south of Mbombela and 360 kilometres (220 mi) east of Johannesburg. Barberton was the seat of the Umjindi Local ...
Africa. The Makhonjwa Mountains or Barberton Makhonjwa Mountains are a range of small mountains and hills that covers an area of 120 by 60 kilometres (75 by 37 mi), about 80% in Mpumalanga, a province of South Africa, and the remainder in neighbouring Eswatini. [2] It constitutes 40% of the Barberton Greenstone Belt.
English: This is a simplified geologic map of the Barberton Greenstone belt, South Africa, showing three of the major Groups and their interactions as well as the Kaap Valley Craton. Date 10 October 2013, 15:38:59
The Barberton Greenstone Belt of eastern South Africa contains some of the most widely accepted fossil evidence for Archean life. These cell -sized prokaryote fossils are seen in the Barberton fossil record in rocks as old as 3.5 billion years. [1] The Barberton Greenstone Belt is an excellent place to study the Archean Earth due to exposed ...
The Barberton greenstone belt (BGB) is located in the Kapvaal craton of southeastern Africa. It characterizes one of the most well-preserved and oldest pieces of continental crust today by containing rocks in the Barberton Granite Greenstone Terrain (3.55–3.22 Ga ). The BGB is a small, cusp-shaped succession of volcanic and sedimentary rocks ...
The craton is a mixture of early Archean (3.0–3.5 Ga) granite greenstone terranes and older tonalitic gneisses (ca. 3.6–3.7 Ga), intruded by a variety of granitic plutons (3.3–3.0 Ga). Subsequent evolution of the Kaapvaal Craton (3.0–2.7 Ga) is thought to be associated with continent–arc collision that caused an overlaying succession ...
Area. 30,000 ha (120 sq mi) The Vredefort impact structure is the largest verified impact structure on Earth. [1] The crater, which has since been eroded away, has been estimated at 170–300 kilometres (110–190 mi) across when it was formed. [2][3] The remaining structure, comprising the deformed underlying bedrock, is located in present-day ...
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