Figure F14. Line scan images and magnetic susceptibility, b*, and natural gamma radiation (NGR) values of blue layer, Sections 342-U1403A-6H-2 and 342-U1403B-6H-5. Line in magnetic susceptibility plot is a seven-point running median to highlight trends (point measurements from Section Half Multisensor Logger [SHMSL]). Reflectance values of b* were measured with shipboard spectrophotometry on the SHMSL. NGR was measured with the Whole Round Multisensor Logger. Inset is an example of a probable feldspar crystal from the smear slide at 73 cm in Section 342-U1403B-6H-5.
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