The MAFLA (Mississippi, Alabama, Florida) Study, Grain Size Analyses

The MAFLA (Mississippi, Alabama, Florida) Study was funded by NOAA as part of the Outer Continental Shelf Program. Dr. L.J. Doyle produced grain size analyses in the historic 073 format for 2,168 sea floor samples collected on multiple cruises (MAFLA cruises 2, 10, 11, 29, 39, 14, 21, and MAFLA DM1 and DM2) conducted in the Gulf of Mexico from May 16, 1974 through February 20, 1978. 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 NCEI digital grain size database.

Data and Resources

Additional Info

Field Value
Last Updated June 10, 2017, 18:12
Created June 10, 2017, 18:12
access_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 to this dataset is unrestricted."]
bbox-east-long -82.248
bbox-north-lat 30.305
bbox-south-lat 25.647
bbox-west-long -88.949
contact-email geology.info@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "1985-03-20"}, {"type": "revision", "value": "1985-03-20"}]
frequency-of-update notPlanned
graphic-preview-description sample locations in study area
graphic-preview-file https://www.ngdc.noaa.gov/mgg/image/geolin/preview03995010.gif
graphic-preview-type GIF
guid gov.noaa.ngdc.mgg.geology:G02890
licence ["Please cite the originator of the data set, the date downloaded, and the National Centers for Environmental Information, NOAA, as the source of the data.", "Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States."]
metadata-date 2015-12-31
metadata-language eng: USA
progress completed
resource-type dataset
responsible-party [{"name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-88.949, 25.647], [-82.248, 25.647], [-82.248, 30.305], [-88.949, 30.305], [-88.949, 25.647]]]}
spatial-data-service-type
spatial-reference-system urn:ogc:def:crs:EPSG:4326
spatial_harvester true
temporal-extent-begin 1974-05-16
temporal-extent-end 1978-02-20