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BLM/OCS South Texas Outer Continental Shelf (STOCS) Project Sediment Data

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The South Texas Outer Continental Shelf Project (STOCS) conducted by the University of Texas and the USGS with funding from BLM/NOAA.The USGS produced geochemical analyses of sediment and suspended sediment, clay mineralogy, and physical properties of sediment for 264 samples collected from October 26, 1974 to December 21, 1974. Additional grain size analyses are not included in the Seafloor sediment digital grain size database due to numerous errors. The University of Texas produced grain size analyses in the historic 073 format for 1647 sea floor samples collected from February 8, 1976 to October 18, 1977. Data include collecting institution, ship, cruise, sample id, latitude/longitude, date of collection, water depth, sampling device, method of analysis, sample weight, sampled interval, raw weight percentages of sediment, within a given phi range. Some samples also have percentages of total gravel, sand, silt, clay, and statistical measurements such as mean, median, skewness, kurtosis, and standard deviation of grain size. These data are part of the larger digital grain size database.

Cite this dataset when used as a source.

Search and Download
  • Data files MGG03565001 (download)
    Compressed tar file of all original data and documentation for MGGID 03565001. Grain size data compiled by W.E. Behrens, University of Texas, from multiple cruises of the R/V Longhorn. STOCS cruises 18-20, 24, 26, 28, 30, 32, 34, 37, 39, 40, 42, 46, 49, 54-55, 59-60, 68, 69-71, 80, and 82 offshore S. Texas in the Western Gulf of Mexico from February 8, 1976-October 18, 1977.
  • Database extract MGG03565001 (download)
    Download grain size data for MGG03565001 in delimited form from the NGDC Seafloor Sediment Grain Size Database.
  • Data files MGG06105001 (download)
    Compressed tar file of all data and documentation for MGG06105001. Grain size, trace metal analyses, and clay mineralogy compiled by Henry Berryhill, USGS, for grab and suspended sediment samples collected by the R/V Kana Keoki (MGG06105001), cruises BLM-STG 001-274, OCS G001-G274, OCS-B016-G273, OCS-W107-246B offshore S. Texas in the Western Gulf of Mexico from October 26-December 21, 1974.
Distribution Formats
  • ASCII (Version: UTF-8)
  • tar.gz (Version: unknown)
Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6339
General Documentation
  • William E. Behrens
    University of Texas
  • Henry Berryhill
    U.S. Geological Survey
  • National Geophysical Data Center, NOAA
  • publication: 1985-03-20
  • revision: 1985-03-20
Edition: First
Data Presentation Form: Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete
Data Update Frequency: Not planned  -  Completed data set, no additions planned.
Supplemental Information: The data set consists of two parts: 1) MGG06105001 received May 28, 1976 from Henry Berryhill, USGS Office of Marine Geology, Corpus Christi, TX, in fulfillment of Contract no. BLM-08550-MU5-20, and 2) MGG03565001 received in 1977 from W.E. Behrens of the University of Texas, also part of the STOCS project. MGG03565001 contains grain size data for multiple cruises of the R/V Longhorn. Data set MGG06105001 contains multiple data types (grain size, clay mineralogy, and trace metals) in eight files, 4,423 records, with accompanying formats and documentation. Samples analyzed were collected by the R/V Kana Keoki from 10/26/74-12/21/74. Grain size data from MGG06105001 contained too many errors to be processed into the NGDC digital grain size database.
Purpose: environmental research
Use Limitations
  • Please cite the originator of the data set, the date downloaded, and the National Geophysical Data Center, NOAA, as the source of the data.
  • Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
Time Period: 1974-02-08  to  1977-10-18
Spatial Reference System: urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates:
N: 28.233
S: 26.166
E: -96.116
W: -97.333
Spatial Coverage Map:
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
  • Marine geology
  • Sea-floor characteristics
  • EARTH SCIENCE > Oceans > Marine Sediments > Sedimentary Textures
  • EARTH SCIENCE > Oceans > Marine Sediments > Sediment Chemistry
  • EARTH SCIENCE > Oceans > Marine Sediments > Geotechnical Properties
  • EARTH SCIENCE > Solid Earth > Geochemistry > Trace Elements
  • EARTH SCIENCE > Solid Earth > Geochemistry > Marine Geochemistry
  • EARTH SCIENCE > Oceans > Marine Environment Monitoring
Data Centers
  • WDC/GEOPHYSICS, BOULDER > World Data Center for Geophysics, Boulder
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • In Situ Ocean-based Platforms > SHIPS
  • In Situ/Laboratory Instruments > Corers > CORING DEVICES
  • In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > GRAB SAMPLERS
  • In Situ/Laboratory Instruments > Corers > SEDIMENT CORERS
  • OCS > Outer Continental Shelf Program
Use Constraints
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Access Constraints
  • Access to this dataset is unrestricted.
  • free online download
Source Datasets
Lineage Statement Lineage prior to transfer to NGDC is unknown
Processing Environment Native Dataset Environment: ASCII text

Metadata Last Modified: 2015-04-09

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