The marine sediment and rock collection at the OSU Marine Geology Repository comes from all oceans. As of 2025 it contains:

The Marine Geology and Geophysics Collection:

  • 17,321 meters (10.7 miles) of marine sediment from over 7500 core sites
  • Over 721 meters (0.49 miles) of lake sediment from 273 core sites
  • 10,036 meters (6.2 miles) of terrestrial drill core from 42 sites
  • 1,600 sediment trap samples

The Antarctic Core Collection:

  • Largest collection of geological samples from the Southern Ocean
  • Over 18,500 meters (11.5 miles) of deep sea core sediment from 7,370 core sites

Dredge and Dive Rock Collection:

  • More than 17,680 rocks from 747 dredges
  • Rock samples from 255 ROV dives sampled by NOAA in marine national monuments in the Pacific Ocean
  • Large collection of manganese nodules

The map contains core, grab, and dredge locations for our searchable holdings. It will be constantly updated with new information as we continue to digitally collate our collection.

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