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JOIDES Resolution daily reports, weekly reports, and site summaries

Expedition reports available from this page are preliminary, have not been peer-reviewed, and may be subject to change. These reports are for informational purposes and are not intended for citation in peer-reviewed publications.

IODP Expedition 399
Building Blocks of Life, Atlantis Massif

Expedition 399 began on 12 April 2023 in Ponta Delgada, Portugal, and ended on 12 June 2023 in Ponta Delgada, Portugal.

Daily Science Reports

Weekly Science Reports

Site Summaries

Photos, Video & Blogs

Ship Reports from Other Expeditions