Computer models suggest modern plate tectonics are due to Moon-forming impact

[Oxytropidoceras]

Computer models suggest modern plate tectonics are due to
blobs left behind by cosmic collision, PhysOrg, May 2024

 

The open access paper is:

 

Yuan, Q., Gurnis, M., Asimow, P.D. and Li, Y., 2024. A giant 
impact origin for the first subduction on Earth. Geophysical
Research Letters, 51(9), p.e2023GL106723

 

Related publications are:

 

Yuan, Q., Gurnis, M. and Asimow, P.D., 2023. A Giant Impact
Origin for the First Subduction on Earth. LPI Contributions, 
2806, no. 2723.

 

Yuan, Q., Li, M., Desch, S.J., Ko, B., Deng, H., Garnero, E.J.,
Gabriel, T.S., Kegerreis, J.A., Miyazaki, Y., Eke, V. and Asimow, 
P.D., 2023. Moon-forming impactor as a source of Earth’s basal
mantle anomalies. Nature, 623(7985), pp.95-99.

 

Finally, the Virtual Seminars in Precambrian Geology videos

on Youtube present a number of talks on the various ideas

about when modern plate tectonics started.  They include:

 

Geodynamic models of early Earth crust formation:

Stagnant-lid, plate tectonics... - Bradford Foley

 

Segmentation of subducting slabs and its implication

for the onset of modern plate tectonics - Taras Gerya

 

Plate-tectonic processes at ca. 2.0 Ga: Evidence from

more than 600 km of plate convergence. - An Yi

 

As can be seen in these talks, there is not any

consensus on when modern plate tectonics started.

 

Yours,

 

Paul H.

Edited May 19 by Oxytropidoceras
added URLs for talks