Figure F23. A. Age versus depth of paleomagnetic and biostratigraphic datums at Site U1304. Mean sedimentation rates were calculated by linear regression for the Brunhes Chron (0–0.78 Ma) and from the Brunhes/Matuyama boundary (0.78 Ma) to the top of the Olduvai Subchron (1.77 Ma). B. Datums shown with the interval sedimentation rates derived from the paleomagnetic datums only.
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