Littoral Zone Sediments, San Diego, Region, October 1983-June 1984

摘要

This report has two major objectives which will serve to better define sediment source areas, sand transport paths and transport mechanisms in the littoral zone extending from Dana Point to the United States-Mexico border. The first objective is to use available mineralogic data to define littoral segmentss along this portion of the southern California coast. The second is to examine grain-size fining-trends (a) to define the most likely transport direction within each littoral segment (or part thereof) during the sampling period, and (b) to better document the complexity of littoral transport paths as a function of elevation (bathymetry). This report includes the reduction and interpretation of mineralogic and grain-size data collected in conjunction with Task 1D, Sediment Sampling, Coast of California Storm and Tidal Wave Study. The data on which this report is based is from the Task's second sample set which includes a late-summer subset collected from Oct 1983 into Jan 1984, and a winter subset collected from Feb to June 1984. Mineralogic and grain-size data were supplied to the Sedimentary Petrology Laboratory at the Univ of Southern California. These data were entered into a Digital Data Base, which is compatible with a Digital Equipment Corp VAX-11/780 computing system.