This layer represents seafloor and lakebed samples available from all participating institutions. Summary collection, lithologic, and age information are searchable. Search results include many links to more detailed information, digital data, core logs, core x-rays, and core photographs at NGDC, and also to related data in external databases at the repositories and elsewhere. All results include full contact information for the responsible curators and links to repository websites. An alternate text search interface is also available.

This layer represents seafloor and lakebed samples available from NOAAs Atlantic Oceanographic and Meteorological Laboratory (AOML).Summary collection, lithologic, and age information are searchable. Search results include links to the original database and to the repository. This sample repository has since closed and there is no longer access to listed samples. An alternate text search interface is also available.

This layer describes seafloor samples available from the Alfred Wegener Institute (AWI) in Germany. This file was last updated by AWI in 1999, new samples are no longer being added. Summary collection information is searchable. Search results include links to the repository. Please see the documentation page for a link to EUSEASED for more recent samples. An alternate text search interface is also available.

This layer describes seafloor and lakebed samples available from the Bedford Institute of Oceanography (BIO) in Canada. Summary collection information is searchable. Search results include links to the repository. An alternate text search interface is also available.

This layer describes seafloor samples collected during the Deep Sea Drilling Project (DSDP) from 1967-1983. The samples are now available through the Ocean Drilling Program Science Operator at Texas A&M University. No new samples are being added. Summary collection, lithologic, and age information are searchable. Search results include links to full downloadable digital data at NGDC and to the repository. An alternative text search interface is also available.

This layer describes seafloor samples available from the Antarctic Research Facility (ARF) operated by Florida State University (FSU). Summary collection, lithologic, and age information are searchable. Search results include links to core x-rays at NGDC and extensive data and images at the repository. An alternative text search interface is also available.

This layer describes seafloor samples available from the GEOMAR Research Center for Marine Geosciences, Christian Albrechts University, Germany. The last update was several years ago and new samples are no longer being added. Please see the documentation page for a link to EUSEASED for more recent samples. Summary collection information is searchable. Search results include links to the repository. An alternative text search interface is also available.

This layer describes seafloor samples available from the Byrd Polar Research Center (BPRC) of Ohio State University. Summary collection information is searchable. Search results include links to more detailed information including graphics and data on the BPRC web site. An alternative text search interface is also available.

This layer describes lakebed samples available from the National Lacustrine Core Repository (LacCore) operated by the University of Minnesota. Summary collection, lithologic, and age information are searchable. Search results include links to more detailed information and graphics from NGDC and the repository. An alternative text search interface is also available.

This layer describes seafloor samples available from the Lamont Doherty Earth Observatory (LDEO) of Columbia University. Summary collection, lithologic, and age information are searchable. Search results include links to more images and data at NGDC and to the repository and LDEO database. An alternative text search interface is also available.

This layer describes Sites/Holes from which sea floor samples are available from the Ocean Drilling Program (ODP). Summary collection information is searchable. Search results include links to the JANUS database at IODP for complete digital data download. An alternative text search interface is also available.

This layer describes seafloor samples available from the Oregon State University (OSU) College of Oceanic and Atmospheric Science. Summary collection, lithologic, and age information are searchable. Search results include links to more detailed information, core logs, and photographs and to the repository. OSU has an active rock collection as well as cores. An alternative text search interface is also available.

This layer describes 29 seafloor samples available from NOAAs Pacific Meteorological and Environmental Laboratory (PMEL). Summary collection, lithologic, and age information are searchable. Search results include links to the repository. No further descriptions are expected from PMEL. An alternative text search interface is also available.

This layer describes seafloor samples available from the Rosenstiel School of Marine and Atmospheric Sciences (RSMAS), University of Miami. Summary collection, lithologic, and age information are searchable. Search results include links to the repository. No new samples are being added to this collection.An alternative text search interface is also available.

This layer describes seafloor samples available from the Scripps Institution of Oceanography (SIO), University of California-San Diego. Summary collection, lithologic, and age information are searchable. Search results include links to more detailed information (including some graphics and/or cruise information) from NGDC and to the repository. SIO has a large rock collection, as well as cores. An alternative text search interface is also available.

This layer describes seafloor samples available from the British Ocean Sediment Core Repository of the Southampton Oceanography Centre (SOC) in the United Kingdom. Summary collection information is searchable. Search results include links to the repository. New samples are continuously being added, please see documentation for links to the parallel, EUSEASED database. An alternative text search interface is also available.

This layer describes seafloor samples available from the School of Ocean and Earth Science and Technology (SOEST), University of Hawaii. Summary collection, lithologic, and age information are searchable. Search results include links to more detailed information from NGDC, and to the repository. No new samples are being added to this collection. An alternative text search interface is also available.

This layer describes seafloor and lakebed samples available from the University of Rhode Island (URI) Graduate School of Oceanography. Summary collection, lithologic, and age information are searchable. Search results include links to cruise reports at NGDC and to the repository. URI has a large collection of rock material as well as cores. An alternative text search interface is also available.

This layer describes seafloor samples available from the University of Southern California (USC). Summary collection and some brief lithologies are searchable. Search results include links to the repository. No new cores are being added to this collection. An alternative text search interface is also available.

There are two separate USGS layers describing seafloor available from the US Geological Survey (USGS). "USGSMP" samples are archived by the USGS Menlo Park Office, "USGSWH" samples are archived by the Woods Hole Oceanographic Institute (WHOI). Summary collection, lithologic, and age information are searchable. Search results include links to more detailed data at the repositories. Alternative text search interfaces are available to USGSMP and USGSWH.

This layer describes seafloor and lakebed samples available from the University of Texas (UT) at Austin Institute for Geophysics. Summary collection, lithologic, and age information are searchable. Search results include links to more detailed information from the original database and to the repository. No new samples are being added to this collection. An alternative text search interface is also available.

This layer describes seafloor and lakebed samples available from the Woods Hole Oceanographic Institute (WHOI). Summary collection, lithologic, and age information are searchable. Search results include links to more detailed information at NGDC and the repository. An alternative text search interface is also available.

This layer describes seafloor samples collected by Ice Island T3 available from the University of Wisconsin. Summary collection information is searchable. Search results include links to the repository. No new samples are being added to this collection. An alternative text search interface is also available.