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  • Sediment Database and Geochemical Assessment of Lake Pontchartrain Basin

    Metadata Updated: November 12, 2020

    Detailed chemical, station (source and documentation, sample locations), and texture data are provided for bottom sediments of Lake Pontchartrain, Louisiana. The sediment data are provided as spreadsheet (Microsoft Excel), database (Microsoft Access), and tab-delimited files on CD-ROM and web site. The browser format is the same for both mediums. These data are in the form of appendixes at the end of the report, which provides extensive supporting data, interpretive diagrams, and discussion. The data were obtained from a variety of sources: published reports, theses, unpublished data from agencies and organizations in Louisiana, and Federal agencies such as the U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, NOAA, National Status and Trends benthic surveillance program, and U.S. Geological Survey (publications and new field data)

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date June 14, 2016
    Metadata Created Date November 12, 2020
    Metadata Updated Date November 12, 2020
    Reference Date(s) January 1, 2002 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from DOI Open Data

    Graphic Preview

    Labeled map of station locations with inset showing general area of the study, 597x385 pixels, 29k bytes

    Additional Metadata

    Resource Type Dataset
    Metadata Date June 14, 2016
    Metadata Created Date November 12, 2020
    Metadata Updated Date November 12, 2020
    Reference Date(s) January 1, 2002 (publication)
    Responsible Party U.S. Geological Survey, ER (Point of Contact)
    Contact Email
    Guid
    Access Constraints Use Constraints: none, Access Constraints: none
    Bbox East Long -89.25
    Bbox North Lat 30.42
    Bbox South Lat 29.75
    Bbox West Long -90.75
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Labeled map of station locations with inset showing general area of the study, 597x385 pixels, 29k bytes
    Graphic Preview File http://pubs.usgs.gov/pp/p1634j/images/headmap.gif
    Graphic Preview Type GIF
    Licence Sediment chemical and other data on this CD-ROM and the companion web site have been compiled from multiple sources. Reasonable care has been taken in transcription, and efforts have been made to provide quality control of the data as described in the relevant sections. Although efforts have been made to screen for and identify data that may be seriously compromised, the data provided here are not guaranteed to be correct or complete. Responsibility for the data remains with the original sources and not the U.S. Geological Survey (except where USGS analyses are involved), and conclusions drawn from the data are the responsibility of the users. Mention of commercial software or services does not imply endorsement by the USGS.
    Metadata Language
    Metadata Type geospatial
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1963-01-01
    Temporal Extent End 1998-01-01

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