Index to Marine and Lacustrine Geological Samples (IMLGS)

The Index to Marine and Lacustrine Geological Samples (IMLGS) describes and provides access to ocean floor and lakebed rock and sediment samples curated by participating institutional and government repositories in the U.S., Canada, the United Kingdom, France, and Germany. Material from most samples may be requested from the responsible Curator for scientific research, using contact information provided in IMLGS data listings. Each curatorial facility prepares data on their own collection for the IMLGS. Minimum information includes platform, cruise, sample id, sampling device, and latitude/longitude. Water depth, collection date, storage method, and principal investigator are usually included. Core dimensions and depth to top and bottom of interval is available for many core samples. Descriptions, comments, physiographic province, lithology, texture, mineralogy, other components, glass remarks, weathering information, and geologic age are included for some samples. An International GeoSample Identifiers (IGSN) is included, where known. Links are provided to related data and images at NCEI, partner institutions, and to other sources of information including the System for Earth SAmple Registration (SESAR) and the Rolling Deck to Repository (R2R). The IMLGS includes information about over 207,935 discrete sea floor and lakebed cores, grabs, dredges, and drill holes worldwide, as of December 7, 2015. The database was designed by a group of Curators, in cooperation with NGDC (now NCEI), at a series of meetings sponsored by the U.S. National Science Foundation (NSF) beginning in 1977. The Curators group continues to meet biennially to share best practices and oversee the IMLGS database.

Data and Resources

Additional Info

Field Value
Last Updated June 24, 2018, 19:03
Created June 10, 2017, 18:12
access_constraints ["cite as: Curators of Marine and Lacustrine Geological Samples Consortium: Index to Marine and Lacustrine Geological Samples (IMLGS). NOAA National Centers for Environmental Information. doi:10.7289/V5H41PB8 [access date]", "Please consult with Curator before proposing to do research on any sample discovered through the IMLGS.", "Sample metadata and most data/images are available online for free download. Additional, full-resolution images from the offline archive may be available. Contact NCEI for more information.", "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."]
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contact-email geology.info@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "1977-12-31"}, {"type": "revision", "value": "2015-10-09"}]
frequency-of-update irregular
graphic-preview-description image of sea floor sample locations
graphic-preview-file https://www.ngdc.noaa.gov/mgg/image/imlgs_mercator1920.png
graphic-preview-type PNG
guid gov.noaa.ngdc.mgg.geology:G00028
licence ["Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States."]
metadata-date 2018-06-22
metadata-language eng: USA
progress onGoing
resource-type dataset
responsible-party [{"name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce", "roles": ["pointOfContact"]}]
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spatial-data-service-type
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temporal-extent-begin 1885-04-01T00:23:00.000Z