Radial tectonic fracturing and formation of radial fractures by (Ernst, R.E., et al. 1995) ... volcanism a consequence of plate tectonics? Science, 300: 921-922. ...
Rheological Structure of the Mantle of Super-Earths: Insights from Mineral Physics Shun-ichiro Karato Yale University Department of Geology and Geophysics
The Archean Earth was hotter (from impacts and more radioactive decay). A more vigorous mantle ... Acasta gneiss, in Nunavut: a metamorphosed granite. ...