The Lamont-Doherty Deep-Sea Sample Repository, located in the
Core Laboratory at the Lamont-Doherty Earth Observatory (LDEO) of
Columbia University, contains archived sediment cores from every
major world ocean and sea. The Core Repository contains
approximately 72,000 meters of core composed of 9,700 piston
cores; 7,000 trigger weight cores; and 1,500 other cores such
as box, kasten, and large ... diameter gravity cores. There are also
4,000 dredge and grab samples including a large collection of
manganese nodules, and many samples recovered by submersibles.
The core sample can be searched through the Deep-Sea Core
Database at the LDEO/IRI Climate Data Library for coordinates
of the site, water depth, topography, core length or dredge size,
sample device, date and time of retrieval.
Data on the cores is stored at NOAA/National Gephysical Data
Center (NGDC) Marine Geology and Geophysics (MGG):