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Figure F42. Estimated glauconite content compared with spectral gamma ray counts and magnetic susceptibility from 500 to 630 mbsf and m WSF, Hole M0028A. Glauconite estimate from sedimentological description. Magnetic susceptibility (MagSUS) from the multisensor core logger (MSCL) corresponds to glauconite-rich layers. Intervals where magnetic susceptibility is not associated with an increase in K or K/Th are those in which glauconite is less significant. TGR = total gamma ray. See Figure F4 in the "Methods" chapter for lithology legend.

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