The periodic assembly and dispersal of supercontinents through the history of the Earth had considerable impact on mantle dynamics and surface processes. Here we synthesize some …
The mechanisms of formation and disruption of supercontinents have been topics of debate. Based on the Y-shaped topology, we identify two major types of subduction zones on the …
Abstract The East African Rift system (EARS) provides a unique system with the juxtaposition of two contrasting yet simultaneously formed rift branches, the eastern, magma …
N Tosi, DA Yuen, N de Koker… - Physics of the Earth and …, 2013 - Elsevier
In numerical simulations of mantle convection it is commonly assumed that the coefficients of thermal expansion α and thermal conduction k are either constant or pressure-dependent …
P and S relative arrival time residuals from teleseismic earthquakes recorded on over 60 temporary AfricaArray broadband seismic stations deployed in Uganda, Tanzania, and …
B O'Mara, MS Miesch, NA Featherstone… - Advances in Space …, 2016 - Elsevier
Several lines of evidence suggest that the velocity amplitude in global simulations of solar convection, U, may be systematically over-estimated. Motivated by these recent results, we …
NL Dobretsov - Russian Geology and Geophysics, 2010 - Elsevier
The paper is a synthesis of models for basic geodynamic processes (spreading, subduction transient into collision, mantle plumes) in relation with the Earth's evolution and regularly …
GD Mulibo, AA Nyblade - Geophysical Research Letters, 2013 - Wiley Online Library
P to S conversions from the 410 and 660 km discontinuities observed in receiver function stacks reveal a mantle transition zone that is~ 30–40 km thinner than the global average in a …