Genetic Global Geomorphology: A Prospectus
Published:January 01, 1991
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Elazar Uchupi, K. O. Emery, 1991. "Genetic Global Geomorphology: A Prospectus", From Shoreline to Abyss: Contributions in Marine Geology in Honor of Francis Parker Shepard, Robert H. Osborne
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Earth's surface morphology is primarily the result of interaction between plates moved by seafloor spreading and/or intraplate tectonic/magmatic processes. Once the youthful endogenetic (tectonic/magmatic) terranes are isolated from inter/intraplate influences as a result of long-continued lateral migration or changes in geometry, exogenetic processes (erosion and deposition) subdue and reduce the original relief. The rate of this modification and the nature of the geologic processes involved in it are controlled by climate, which may change with time or with migration of the plates across climatic zones, and by oscillations in sea level. Whether a terrane can reach an old-age stage in the geomorphic cycle depends upon its isolation from plate activity long enough for non-tectonic processes to complete its degradation. The low relief of ancient terranes in Precambrian shields is a clear indication that the geomorphic cycle can come to completion.
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From Shoreline to Abyss: Contributions in Marine Geology in Honor of Francis Parker Shepard
From Shoreline to Abyss: Contributions in Marine Geology in Honor of Francis Parker Shepard - Francis P. Shepard left a rich scientific legacy including more than 230 published papers and books primarily addressed to the study of submarine canyons and turbidity currents, continental shelves and associated sediments, coastal processes and sediments and marine physiography and tectonics. He is best remembered for his work on submarine canyons; however, his broad range of scientific interests and his remarkable ability to break new ground in each of these disciplines have served as a model for at least four generations of ?Shepard? students. This new work from these Shepard students addresses problems in marine geology from the global scale to the local outcrop scale. Relationships among tectonics, eustacy and both siliciclastic and carbonate sedimentation create a unifying theme. Special topics include coastal processes, shelf and slope evolution, and submarine canyon and fan systems.