Thermomechanical modeling of pulsation tectonics and consequences on lithospheric dynamics

Tine B. Larsen, David A. Yuen, Jamie L. Smedsmo, Andrei V. Malevsky

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

10 Citationer (Scopus)

Abstrakt

Pulsating phenomena can control continental breakup and the formation and closing of oceanic basins. Using a two-dimensional time-dependent convection model with a non-linear, temperature- and depth-dependent rheology, we have obtained self-consistently such types of pulsating behavior. Very hot mantle plumes ascend to the surface, where they can quickly thin the lithosphere down to a few kilometers. An episode of intense shear heating then ensues, which is comparable to the length of the main episode for flood volcanism, lasting a couple of Myrs. The highest plate velocities occur during this period, when both the lithosphere and slab are profusely lubricated by the impingement of the hot plume.

OriginalsprogEngelsk
Sider (fra-til)217-220
Antal sider4
TidsskriftGeophysical Research Letters
Vol/bind23
Udgave nummer3
DOI
StatusUdgivet - 1 feb. 1996

Programområde

  • Programområde 5: Natur og klima

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