Headers describe column contents, with more information at the end of the file. This file does not contain lithologic or age information. The Index is intended to be used to find seafloor samples for further study and to provide information necessary to contact the responsible repository - it is not intended to be a lithologic database for research. Because of this, if you search by other criteria, you may get zero samples returned. Latitudes and longitudes may be entered in whole degrees or in decimal degrees.
Negative numbers indicate West longitudes or South latitudes.
Water depths are in whole meters and both minimum and maximum must be entered if you are searching on water depth. If you are searching on more than one set of criteria, please make sure that they are not mutually exclusive. For example, a ship that did not cross a particular area or did not collect samples stored by the specified institution.