Accession Number : AD0672590

Title :   COMPUTER SIMULATION OF SHALLOW-WATER MARINE SEDIMENTATION.

Descriptive Note : Final summary rept.,

Corporate Author : STANFORD UNIV CALIF DEPT OF GEOLOGY

Personal Author(s) : Harbaugh,John W. ; Bonham-Carter,Graeme

Report Date : JUL 1968

Pagination or Media Count : 30

Abstract : Four computer simulation models are discussed. (1) A stochastic delta model employing a constrained random walk technique was found to be unsatisfactory. (2) A deterministic delta model employing a jet velocity field produces a 'delta' narrow in plan view and sloping away from the source at angles less than 1 degree. Incorporation of a feedback regulator permits a 'mouth bar' and 'subaqueous levees' to build. (3) A 'beach' model incorporating wave refraction and turbulent diffusion of sediment is outlined. (4) A simple sedimentary basin model permits experimentation with sedimentation and subsidence rates and dispersal of sediment by wave action. A computerized bibliography on systems and simulation techniques relevant to geology has been set up, and now contains about 500 literature citations, each with keywords. Retrieval on the basis of selection criteria (keywords, title words, author and date) can be carried out using programs developed by the SPIRES system at Stanford. The framework for a general synthesis of simulation techniques as applied to geology, and sedimentation in particular, is laid out. (Author)

Descriptors :   (*SEA WATER, SEDIMENTATION), OCEAN WAVES, MATHEMATICAL MODELS, OCEAN MODELS, SCATTERING, BIBLIOGRAPHIES, DELTAS, BEACHES, REFRACTION, TURBULENT BOUNDARY LAYER

Subject Categories : Physical and Dynamic Oceanography
      Geology, Geochemistry and Mineralogy
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE