Please Note: NCEI will transition the Geological History of the World's Oceanic Crust page to EarthByte on May 12, 2025. The underlying data will remain available. Send comments and questions to ncei.info@noaa.gov.
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Please note: Due to a system outage, NCEI Users should expect delays accessing many datasets. We are working to resolve these issues as soon as possible. We apologize for any inconvenience.