Skip to content
Metadata Date Stamp:
LDEO Carbonate Data - CaCO3 Percentages for 328 Sediments Cores, Principally from The Atlantic Ocean Spanning 100,000 to 200,000 Years bp
Dataset Publication Date:
LDEO Carbonate data were compiled under the direction of A. Esmay and W.F. Ruddiman at the Lamont-Doherty Earth Observatory of Columbia University. Data include CaCO3 percentages by interval down core for 328 sediments cores, principally from the Atlantic ocean. Data are derived primarily from two sources. First, cores analyzed during the CLIMAP project to generate stratigraphic control on cores from key deep-sea regions. Second, cores analyzed using almost entirely National Science Foundation funds, but through smaller grants to individuals and institutions. On average, cores span intervals of time of 100,000 to 200,000 years and have been analyzed at time steps of a few thousand years. Several cores span only the last deglaciation; a few cores cover much longer intervals, up to 3 million years. Samples are annotated as either bulk sediment, or fine-fraction. Data are available for free download. Data were originally submitted to NOAA's National Geophysical Data Center (NGDC) for archive and were subsequently transferred to NOAA's National Climatic Data Center (NCDC) Paleoclimatology Group for stewardship.
Dr. William Ruddiman and Dr. Ann Esmay, Lamont-Doherty Earth Observatory of Columbia University. Funding from the US National Science Foundation.
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.
Browse Graphic URL:
Browse Graphic Caption:
sample locations in study area
Browse Graphic Type:
Geological and Geophysical, Oceans and Estuaries
West Bounding Longitude:
South Bounding Latitude:
East Bounding Longitude:
North Bounding Latitude:
Data Quality Information
Scope (quality information applies to):
Data originally submitted to NOAA's former National Geophysical Data Center (NGDC) then transferred to the former National Climatic Data Center (NCDC) Paleoclimatology for stewardship, both centers are now part of NOAA's National Centers for Environmental Information (NCEI). Processing and lineage prior to transmission to NGDC are unknown.
Distribution Link Function:
Metadata Reference Information
Metadata Standard Name:
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
Metadata Standard Version:
Maintained by NOAA's
National Geophysical Data Center
. Please read the