Global ETD Search
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Showing 1 to 3 of 3 for “"vertical tectonics"”.
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Seismic Imaging of a Granitoid-Greenstone Boundary in the Paleoarchean Pilbara Craton
The mode of tectonics by which early Archean proto-continents were deformed was investigated in the Pilbara Craton in Western Australia, which has not been substantially tectonically deformed since ~3.2 Ga. The craton consists of a unique dome and keel structure where vertical, low-grade …
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Temperature-dependent thermal transport properties of major Archean rock types and implications for the thermal evolution of Archean terranes
… While it is generally agreed that plate tectonics operated on Earth in the Proterozoic, a form of vertical tectonics may have operated during the Archean, leading to formation of dome-and-keel terranes. Early continental crust was comprised of rock associations such granite-greenstone …
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The regional tectonism of the gneisses of part of Namaqualand
… to the strike of the basal sediments and where vertical tectonics in the floor caused gravitational gliding of the sediments. Numerous mafic dykes (±870 My), supplying the volcanic material interbedded with the sediments, were intruded in the coastal regions. The Richtersveld granites (±850 …