Deep recycling of supracrustal materials at 3200 million years ago

Nanjing, China (SPX) Sep 07, 2021
On the modern Earth, plate tectonics offers an efficient mechanism for mass transport from the Earth’s surface to its interior, but how far this mechanism dates back in the Earth’s history is uncertain. The Kaapvaal Craton and specifically the Barberton granitoid-greenstone terrain (BGGT) provide a robust rock-based benchmark for early Earth studies because of exceptional preservation of e
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