Olympic Coast National Marine Sanctuary - grab110_0204 - Sediment grabs within survey area 110_0204 taken from USGS usSeabed

Over the past 50 years there has been an explosion in scientific interest, research effort, and information gathered on the geologic sedimentary character of the continental margin of the United States. Data and information from thousands of publications have greatly increased our scientific understanding of the geologic origins of the margin surface but rarely have those data been combined and integrated. This publication is the first release of the Pacific coast data from the usSEABED database. The report contains a compilation of published and unpublished sediment texture and other geologic data about the sea floor from diverse sources. usSEABED is an innovative database system developed to unify assorted data, with the data processed by the dbSEABED system. Examples of maps displaying attributes such as grain size and sediment color are included. This database contains information that is a scientific foundation for the U.S. Geological Survey (USGS) Sea floor Mapping and Benthic Habitats project and the Marine Aggregate Resources and Processes assessment project, and will be useful to the marine science community for other studies of the Pacific coast continental margin.

Point coverage of known sediment samples in the HMPR-110-2004-02 survey area extracted from theUSGS usSEABED database. These data are intended for science researchers, students, policymakers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.

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As additional information becomes available

A "1" in RECORDTYPE indicates that the data is surficial; "2" indicates a down-core sample. HBTCODE (HYDROGRAPHIC BOTTOM CODE) is based on the U.S. Navy's method of seafloor classification. S_WAVEVELO (S_WAVEVELOCITY),RELAXATION (RELAXATION TIME) give lab-based values. -99 indicates novalue available.SCASMPL.REF: Data sources for SCASMPL.SHP: sediment samples inSouthern California (Sept. 2001)34.59-121.07 + -118.7933.73SCASMPL.PAT:COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME1 AREA 4 12 F 35 PERIMETER 4 12 F 39 SCASMPL# 4 5 B -13 SCASMPL-ID 4 5 B -17 LATITUDE 8 9 F 525 LONGITUDE 8 10 F 533 WATERDEPTH 4 4 B -37 SAMPLETOP 4 4 F 241 SAMPLEBASE 4 4 F 245 SITENAME 21 21 C -66 DATASETKEY 3 3 C -69 SITEKEY 5 5 C -74 SAMPLEKEY 5 5 C -79 RECORDTYPE 4 1 B -83 DATATYPES 8 8 C -91 GRAVEL 4 3 B -95 SAND 4 3 B -99 MUD 4 3 B -103 CLAY 4 3 B -107 GRAINSIZE 4 5 F 1111 SORTING 4 5 F 1115 SEAFLOORCL 3 3 C -118 CLASSMBRSH 4 3 B -122 HBTCODE 2 2 C -124 ROCKMBRSHP 4 3 B -128 WEEDMBRSHP 4 3 B -132 CARBONATE 4 3 B -136 MUNSELLCOD 13 13 C -149 ORGANICCAR 4 3 B -153 SHEARSTREN 4 3 B -157 POROSITY 4 3 B -161 P_WAVEVELO 4 3 B -165 S_WAVEVELO 4 3 B -169 RELAXATION 4 3 B -

Unknown

Please recognize the U.S. Geological Survey (USGS) as the source of this information. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.

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Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.2.1350

Accuracy of each attribute is dependent on accuracy of lineage data.

Horizontal positional accuracy is dependent on source accuracy and may vary from 0.005km (differential GPS) from more recent source surveys to 1 to 2 km based on radar, Loran, or dead reckoning in older surveys. Users should use their own criteria to evaluate locations of these data.

Data presented here represent known lab-based textural, statistical, carbonate, and organic carbon data for the defined polygon. Other data available but not presented here include estimations of various geophysical parameters from these data, plus memberships to various fuzzysets, such textural, compositional, geophysical, and geotechnical parameters from linguistic data

Point features present. Each data point has a unique identifier (SiteName) with corresponding attributes attached, including latitude and longitude in decimal degrees.

Data sources for SCASMPL.shp:

DataSetKey SourceCode DataOwner DataPerson DataMeasured MethodLocationRegion SurveyDate ReportDate NavigationalAccuracy

1 SCCWRP 1994 Southern California Coastal Water Resources Project LarryCooper@ SCCWRP Unpublished lab analyses Southern California Bight7-94 to8-94 Down-loaded 1999 0.005km

2 SEDDATA University of Southern California Donn Gorsline Published and unpublished lab analyses Southern California Borderland various dates 1999 unknown

3 USGS A298SC US Geological Survey Brian Edwards and Homa LeeUnpublished lab analyses and deck log descriptions Santa Monica Bay CA23-8-98 31-8-98 1998 0.005km

9 Emery & Hulsemann 1963 Allan Hancock Foundation/USCReid published report Southern California Borderland 1957-1962 1963 unknown

10 Emery & Shepard 1941 Scripps Institution of Oceanography Reid published paper Southern California Borderland <1941 1941 unknown

13 Barnes 1970 University of Southern California Peter Barnes(pbarnes@usgs.gov) Unpublished PhD. dissertation Southern California Borderland 1964-1968 1970 1-2km

14 Smith 1970 University of Southern California Reid Unpublished PhD.Dissertation Southern California Borderland 1956-19641970 unknown

18 SoCalifBLM/OCS NGDC MGG64995001 Carla Moore Unpublished report Southern California Borderland 1975-1976 1977 unknown

Barnes, Peter W., 1970, Marine geology and oceanography of Santa Cruz Basinoff southern California, unpublished PhD. Dissertation, University of Southern California, USC-GEOL 70-3, Los Angeles, CA

Edwards, B.E., and Homa Lee, U.S. Geological Survey, 1998, unpublished data from cruise A298SC, http://walrus.wr.usgs.gov/infobank

Emery, K.O., and J. Hulsemann, 1963, Submarine canyons of southern California, Allan Hancock Expeditions, v. 27, pt. 1, Los Angeles, CA

Gorsline, Donn, 2001, personal communication of SEDDATA database, University of Southern California, Los Angeles, CA

Science Applications, Inc., 1977, BLM/OCS/Southern California Baseline Studies, NGDC MGG#64995001, http://oas.ngdc.noaa.gov/mgg/

Smith, Stephen V., 1970, Calcium carbonate budget of the southern California borderland, unpublished PhD. Dissertation, University of SouthernCalifornia, Los Angeles, CA

Southern California Coastal Water Research Project (SCCWRP), 1997, Data from the SCCWRP 1994 Pilot Project in the Southern California Borderland,http://www.sccwrp.org