Figure F45. Relationship between GRA bulk density (red), discrete bulk density (black), grain density, natural gamma radiation (NGR), smear slide pyrite abundance (TR = trace, R = rare, C = common, A = abundant, D = dominant), X-ray diffraction (XRD) pyrite counts, and XRD opal-A counts. Shaded blue areas indicate clay-rich sediment interval and remains are biogenic component–rich sediment intervals.
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