LDCR contains one of the world’s most unique and important collection of scientific samples from the deep sea. Tens of thousands of sediment cores from every major ocean basin are archived at the Core Repository, as well as thousands of dredge and grab samples, including a large collection of manganese nodules. We provide long-term curation and archiving of samples and cores collected by the geoscience community, fulfill sample and data requests from around the world, assist investigators from any institution in the planning and execution of sample collection activities, including sea-going expeditions, and educate teachers, students, and the public.