Record Display for the EPA National Library Catalog

RECORD NUMBER: 24 OF 1484

OLS Field Name OLS Field Data
Main Title Depositional Environments and Sediment Characteristics of the Colville and Adjacent Deltas, Northern Arctic Alaska.
Author Naidu, A. S. ; Mowatt., T. C. ;
CORP Author Alaska Univ., College. Inst. of Marine Science.;National Oceanic and Atmospheric Administration, Rockville, Md. Office of Sea Grant.;Geological Survey, Reston, Va. Office of Marine Geology.;Environmental Protection Agency, Washington, D.C.
Year Published 1975
Report Number IMS-Contrib-206; DI-14-09-001-12599, NOAA-04-3-158-41; NOAA-75120123;
Stock Number PB-248 301
Additional Subjects Deltas ; Geological sedimentation ; Colville Delta ; Alaska ; Permafrost ; Ocean environments ; Polar regions ; Drainage ; Sediments ; Mineral deposits ; Soil surveys ; Coastal topographic features ; Sedimentology ; Particle size ; Slopes ; Watersheds ; Concentration(Composition) ; Rocks ; Clay minerals ; Sediment transport ; Chemical properties ; Arctic regions ; Polar Deltas ; Polar Sea ; North Slope ; Sea Grant program ; Reprints
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-248 301 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 28p
Abstract
Polar deltas, typified by those on Alaska's North Slope, which have their drainage basins totally in the permafrost region and discharge into a polar sea, are significantly different from lower latitude deltas. In the arctic, features classically related to delta-front platform and slope facies are not well defined and certain continental facies are either nonexistent or less well developed. Except during occasional storms the North Slope deltas are exposed to low energy hydraulic conditions. Mean size is the only textural parameter that can be used to differentiate sediments of the estuary, lagoon, coastal beach, bay and open marine environments. Terrigenous input primarily determines the clay mineral assemblage at any locality in the river. However, differences between fluvial and marine deltaic environments are discernible. Broad facies variations within the nearshore materials suggest that clay mineral suites may be of use in explaining sediment transport directions. Differences in the chemistry of arctic and lower latitude deltaic sediments are recognizable as well as are variations among the subfacies of the arctic deltas.