Figure F25. Whole-Round Multisensor Logger (WRMSL) gamma ray attenuation (GRA) bulk density compared to natural gamma radiation (NGR) data from Site U1421, shown after Gaussian smoothing both data sets with a 50 cm window (±3σ) and interpolation to constant resolution at 10 cm. NGR is also shown corrected for variability in recovered sediment volume by normalizing to WRMSL GRA bulk density. Data in the shallowest 32 m CCSF-A reflect the stratigraphic composite splice (see “Stratigraphic correlation”); data from the deeper APC and XCB portions of Hole U1421A are appended to form a single stratigraphic section.
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