The marine sediment and rock collection at the OSU Marine Geology Repository comes from all oceans. As of 2015 it contains over 16,290 meters of sediment from 6,200 cores, more than 10,000 rocks from over 500 dredges, 2,200 Manganese Nodules, and 1,600 sediment trap and 700 plankton tow samples. In recent years, we have distributed about 5,000 samples per year to scientists throughout the world. The map below contains core, grab, and dredge locations for our searchable holdings listed in the Index to Marine and Lacustrine Geological Samples database. This is an almost complete list of our holdings but it will be constantly updated with new information as we continue to digitally collate our collection.

Our holdings map is filterable by multiple parameters. Please first select the collection samples you wish to see from the layers list. In addition, different seafloor geology layers are available from the EarthByte and NOAA collections. To further filter samples and see metadata, please click on the file icon in the lower right. If you wish to request samples please see and read our sample distribution policy.

You can also search our collection as part of the wider repository holdings in the Index to Marine & Lacustrine Geological Samples (IMLGS) database hosted by NOAA