National Geophysical Data Center (NGDC), NOAA Satellite and Information Service

View Metadata As: Get Data, FAQ, HTML, 19139 XML
Assess Metadata For: Completeness, DOI Readiness, CSW Readiness, Components

Index to Marine and Lacustrine Geological Samples (IMLGS)

browse graphicimage of sea floor sample locations
The Index to Marine and Lacustrine Geological Samples (IMLGS) describes and provides access to sea floor and lakebed rock and sediment samples curated by participating institutional and government repositories in the U.S., Canada, the United Kingdom, 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 NGDC, 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 over 500,000 records describing approximately 201,120 discrete sea floor and lakebed cores, grabs, dredges, and drill holes worldwide, as of April, 2014. The database was designed by a group of Curators, in cooperation with NGDC, 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.

cite as: Curators of Marine and Lacustrine Geological Samples Consortium: Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8 [access date]

Search and Download
Distribution Formats
  • In addition to web services and online browse and download of ASCII data and information from the IMLGS database, and links to browse and download related images and analyses, data is also available in KML form, as Linked Data (via R2R) and in other custom formats, including shapefiles on request.
  • ASCII (Version: UTF-8)
  • WMS (Version: 1.3.0)
  • WFS (Version: 1.1.0)
  • KMZ (Version: 2.1)
Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact Carla J. Moore
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6339
carla.j.moore@noaa.gov
General Documentation
Associated Resources
Originator
  • Curators of Marine and Lacustrine Geological Samples Consortium
Originator
  • Antarctic Marine Geology Research Facility, Florida State University
Originator
  • International Ocean Discovery Program, IODP, ODP, and DSDP archives
Originator
  • Lamont-Doherty Earth Observatory, Columbia University
Originator
  • National Lacustrine Core Repository, University of Minnesota
Originator
  • Oregon State University, College of Ocean and Atmospheric Sciences
Originator
  • Scripps Institution of Oceanography, University of California-San Diego
Originator
  • University of Rhode Island, Graduate School of Oceanography
Originator
  • U.S. Geological Survey East Coast Repository
Originator
  • U.S. Geological Survey West Coast Repository
Originator
  • U.S. Geological Survey St. Petersburg Repository
Originator
  • Woods Hole Oceanographic Institution
Originator
  • British Ocean Sediment Core Research Facility, Southampton Oceanography Centre
Originator
  • Geological Survey of Canada, Atlantic (GSC A) National Marine Geoscience Collection
Originator
  • Byrd Polar Research Center Sediment Core Repository, Ohio State University
Originator
  • School of Ocean and Earth Science and Technology, University of Hawaii
Originator
  • Rosenstiel School of Marine and Atmospheric Sciences, University of Miami
Originator
  • Curator, University of Texas Institute for Geophysics (currently inactive)
Originator
  • University of Wisconsin-Madison Department of Geology and Geophysics (currently inactive)
Originator
  • Alfred-Wegener-Institute for Polar and Marine Research (currently inactive)
Originator
  • Leibniz-Institute for Marine Sciences IFM-GEOMAR (currrently inactive)
Originator
  • University of Southern California Department of Geology and Geophysics (currently inactive)
Originator
  • NOAA Pacific Marine Environmental Laboratory (currently inactive)
Originator
  • NOAA Atlantic Oceanographic and Meteorological Laboratory Core Repository (closed)
Originator
  • National Museum of Natural History, Smithsonian Institution (NOS hydrographic survey samples only)
Originator
  • University of Washington Core Repository (closed, collection moved to Oregon State University)
Originator
  • National Science Foundation (NSF)
Publisher
  • National Geophysical Data Center, NOAA
Date(s)
  • publication: 1977-12-31
  • revision: 2014-08-08
Data Presentation Form: Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status On Going
Data Update Frequency: Irregular  -  Partner repositories contribute updates as new samples are added to their collections.
Supplemental Information: Quality control: Descriptions and metadata are created by the curating facility, which is responsible for the accuracy of the information. Coded entries are checked on receipt by the National Geophysical Data Center for gross errors in coded fields.
Purpose: The purpose of the IMLGS is to promote new research on existing sea floor and lakebed cores, grabs, dredges, and drill samples by helping researchers find samples curated by participating geosample repositories. Geologic samples are invaluable cross-disciplinary, resources. Their uses include, but are not limited to understanding past climate change, the impact of benthic habitat on fisheries and other biological communities, pollution patterns, geohazards, and other Earth systems and processes. Geologic samples can also assist in siting offshore structures, locating strategic offshore mineral resources, and providing ground-truth for remotely sensed/geophysical measurements.
Use Limitations
  • Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
Time Period: 1885-04-01T00:23:00.000Z  to  Present
Spatial Reference System: urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates:
N: 90
S: -88.367
E: 180
W: -180
Spatial Coverage Map:
Themes
  • Databases
  • Scientific archives
  • Electronic records
  • Oceanography
  • Ocean bottom
  • Geology
  • Submarine geology
  • Marine sediments
  • Marine geology
  • Rock and sediment lithology and mineralogy
  • Sea-floor characteristics
  • lacustrine sediments
  • EARTH SCIENCE > Oceans > Marine Sediments
  • EARTH SCIENCE > Oceans > Marine Sediments > Sediment Composition
  • EARTH SCIENCE > Paleoclimate > Ocean/Lake Records > Sediments
  • DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
  • DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
  • DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
Data Centers
  • WDC/MGG, BOULDER > World Data Service for Geophysics, Boulder
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Platforms
  • In Situ Ocean-based Platforms > SHIPS
Instruments
  • In Situ/Laboratory Instruments > Corers > CORING DEVICES
  • In Situ/Laboratory Instruments > Samplers > DREDGING DEVICES
  • In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > GRAB SAMPLERS
  • In Situ/Laboratory Instruments > Corers > ROCK CORERS
  • In Situ/Laboratory Instruments > Corers > SEDIMENT CORERS
  • In Situ/Laboratory Instruments > Samplers > Trawls/Nets > BOTTOM TRAWL
Places
  • GEOGRAPHIC REGION > GLOBAL OCEAN
  • VERTICAL LOCATION > SEA FLOOR
  • OCEAN > ARCTIC OCEAN
  • OCEAN > ATLANTIC OCEAN
  • OCEAN > INDIAN OCEAN
  • OCEAN > PACIFIC OCEAN
  • OCEAN > SOUTHERN OCEAN
Projects
  • IMLGS
Use Constraints
  • Please consult with Curator before proposing to do research on any sample discovered through the IMLGS.
  • 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
  • Sample metadata and most data/images are available online for free download. Additional, full-resolution images from the offline archive may be available. Contact NGDC for more information.
Other Constraints cite as: Curators of Marine and Lacustrine Geological Samples Consortium: Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8 [access date]
Fees
  • free for online download
Source Datasets
Lineage Statement Data are received on a continuing basis from the participating repositories. Incoming data are checked for adherence to controlled vocabularies, illegal data types in numeric fields, and out of range latitudes/longitudes. NGDC adds IGSNs/links to related resources, where known, and may perform cursory visual inspection of data for reasonableness, asking the originator for guidance on discrepancies. Preliminary processed data are placed in a test database for inspection by the originator, and iteratively corrected until the originator approves their publication to the production database. Data may also be updated/corrected at any time, at the originator's request.
Processing Environment Native Dataset Environment: database tables Technical Prerequisites: Contact data center for information

Metadata Last Modified: 2014-08-08

For questions about the information on this page, please email: carla.j.moore@noaa.gov