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Continental flooding and mantle-lithosphere dynamics

Gurnis, Michael (1991) Continental flooding and mantle-lithosphere dynamics. In: Glacial Isostasy, Sea-Level, and Mantle Rheology. NATO ASI Series. No.334. Kluwer Academic Publishers , Boston, pp. 445-492. ISBN 9780792311676

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The flooding of continental platforms is controlled as much by global eustatic sea level fluctuations as by epeirogenic, vertical motions. This basic, but underappreciated, geologic observation is consistent with the simplest model of mantle convection. Eustatic fluctuations are driven by changes in the top thermal boundary layer of convection (the lithosphere}, while epeirogenic motions are driven by convective upwellings and downwellings (subduction). Continental platforms were exposed during the Triassic before Pangea broke apart and then became flooded during the Cretaceous when the continents were dispersing. This longest term cycle in global sea level is predicted by models of mantle convection where non-subducting continental plates dynamically interact with the mantle. These dynamic models predict that apparent eustatic sea level changes can be driven by long wavelength dynamic topography.

Item Type:Book Section
Additional Information:© 1991 Kluwer Academic Publishers. B. Hager provided a clarification of Hager (1980). B. Wilkinson provided digital versions of the sea level curves in Figure 3. S. Hurter and D. Yuen provided comments on the ms. Funded by the U.S. National Science Foundation under grants EAR-8957164 and EAR-8904660.
Group:Seismological Laboratory
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Record Number:CaltechAUTHORS:20121116-154725568
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35525
Deposited By: Tony Diaz
Deposited On:20 Nov 2012 21:18
Last Modified:11 Jun 2015 12:59

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