Geokolloquium | Deep thermal field in plate tectonics

Prof. D. Magdalena-Scheck-Wenderoth GFZ Potsdam, RWTH Aachen

11 Juli  2024, 16:00 Uhr

The Wilson Cycle creates specific lithospheric configurations characterized by a distinct geophysical configuration. With 3D data-integrated models we show how the upper few km of the Earth’s crust have characteristic thermal fields depending on the setting and discuss the first-order controlling factors for these differences. We find that always the superposed effects of three main factors are relevant: (1) different thermal conductivities, (2) variable contributions of radiogenic heat in response to crustal thickness and composition, and (3) variations in average geothermal gradient in response to the thermal lithosphere thickness are key. Depending on the setting, the distribution of thermal properties leads to -specific 3D thermal fields that in turn control the local rheology and deformation.

 

Veranstaltungsort

Hörsaal Geologie
Institut für Geographie und Geologie,
Friedrich-Ludwig-Jahn-Straße 17 A
17489 Greifswald


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