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Books > Earth & environment > Geography
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The Alaskan Shelf - Hydrographic, Sedimentary, and Geochemical Environment (Paperback, Softcover reprint of the original 1st ed. 1979)
Loot Price: R1,364
Discovery Miles 13 640
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The Alaskan Shelf - Hydrographic, Sedimentary, and Geochemical Environment (Paperback, Softcover reprint of the original 1st ed. 1979)
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From a general point of view the importance of striving to minimize
envir- mental disturbances on the continental shelf cannot be
overemphasized. Coastal areas are sites of population centers,
navigation and recreation activities, and - source development, all
of which contribute to environmental stress on the shelf. Proper
management of the shelf for optimum use requires a thorough
understanding of shelf processes. Complex problems, such as the
influence of hydrodynamics on sediment dispersal, element
differentiation and migration, physiochemical changes at the
sediment water interface, the relationship - tween the pollutants
and sediments, and the type of substrate with regard to benthic
community and/or man-made structures require a multidisciplinary
approach to their solution. The present study interrelates
meteorologic, hyd- graphic, sedimentologic, and geochemical
parameters to derme specific envir- ments on the Alaskan Shelf.
These observations are then related to geologic principles in an
effort to elucidate the sedimentary processes and elemental
migration on the shelf. Attempts have also been made to relate the
sediment texture to the geochem- try of the sediments. Obviously
the chemistry is complicated as a result of b- genic contributions
and variable provenance; however, to some extent elemental
differentiation accompanies textural differentiation in sediments.
The distribution of elements in various phases of crustal (source)
rocks is gen- ally interpreted on the basis of crystallographic
concepts, especially the concept of isomorphism.
General
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