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

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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.
  • Cite as: L. J. Doyle. 1985: The MAFLA (Mississippi, Alabama, Florida) Study, Grain Size Analyses. First. NOAA National Centers for Environmental Information. Accessed [date].
  • ID not available.
gov.noaa.ngdc.mgg.geology:G02890
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Distribution Formats
  • ASCII
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Marine Geology Data Manager
NOAA National Centers for Environmental Information
geology.info@noaa.gov
Coverage Description Gulf of Mexico offshore Mississippi, Alabama, and Florida
Time Period 1974-05-16 to 1978-02-20
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
West:-88.949
East:-82.248
South:25.647
North:30.305
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • 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 - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency Not planned - Completed data set, no additions planned.
Supplemental Information
minimal documentation, added to NGDC grainsize database
Purpose environmental research
Use Limitations
  • Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
Dataset Citation
  • Cite as: L. J. Doyle. 1985: The MAFLA (Mississippi, Alabama, Florida) Study, Grain Size Analyses. First. NOAA National Centers for Environmental Information. Accessed [date].
Cited Authors
  • L. J. Doyle
    University of Southern Florida
Publishers
  • NOAA National Centers for Environmental Information
Acknowledgments
  • L. J. Doyle, University of Southern Florida, with funding from the National Oceanic and Atmospheric Administration (NOAA)
Theme keywords Library of Congress Subject Headings
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
SeaDataNet Common Vocabularies
  • Marine geology
USGS Science Topics
  • Sea-floor characteristics
Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > OCEANS > Coastal Processes > Sedimentation
  • Earth Science > OCEANS > Marine Sediments > Sedimentation
  • Earth Science > Oceans > Marine Sediments > Sedimentary Textures
  • Earth Science > Oceans > Marine Environment Monitoring
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • In Situ Ocean-based Platforms > Ships
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • In Situ/Laboratory Instruments > Corers > Coring Devices
  • In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > Grab Samplers
  • In Situ/Laboratory Instruments > Corers > Sediment Corers
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Ocean > Atlantic Ocean > NORTH ATLANTIC OCEAN > GULF OF MEXICO
  • Vertical Location >Sea Floor
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • OCS > Outer Continental Shelf Program
  • ICSU-WDS > International Council for Science - World Data System
NODC PROJECT NAMES THESAURUS
Use Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
  • 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
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
  • Access to this dataset is unrestricted.
Other Constraints Cite as: L. J. Doyle. 1985: The MAFLA (Mississippi, Alabama, Florida) Study, Grain Size Analyses. First. NOAA National Centers for Environmental Information. Accessed [date].
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for:dataset
Lineage Statement These data were contributed by the originator to NOAA's former National Oceanographic Data Center (NODC) and may be part of a larger compilation archived as oceanographic data by NCEI. Data were contributed on nine track magnetic tape in ASCII form, as 80 character records blocked to 4800 characters/block. Ten files of MAFLA data were followed by additional STOCS data on the tape, as described in a separate metadata record. Data files included cruises MAFLA002, MAFLA010, MAFLA011, MAFLA014, MAFLA021, MAFLA029, MAFLA039, MAFLADM1, MAFLADM2, and MAFLADM4 - 15,175 records of 073 grain size data with no significant errors, so they were added to the NGDC Seafloor Sediment Grain Size Database.
Processing Environment Native Dataset Environment: ASCII text
Source Datasets
Lineage information for:repository
Processing Steps
  • 2015-04-22T00:00:00 -NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • In Situ/Laboratory Instruments
  • In Situ/Laboratory Instruments
  • In Situ/Laboratory Instruments
  • In Situ/Laboratory Instruments
Platform
    Last Modified: 2020-04-21
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