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Seismological evidence for the earliest global subduction network at 2 Ga ago

from Science Advances

Seismological evidence for the earliest global subduction network at 2 Ga ago Science Advances The earliest evidence for subduction, which could have been localized, does not signify when plate tectonics became a global phenomenon. To test the antiquity of global subduction, we investigated Paleoproterozoic time, for which seismic evidence is available from multiple continents. We used a new high-density seismic array in North China to image the crustal structure that exhibits a dipping Moho bearing close resemblance to that of the modern Himalaya. READ MORE

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