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Figure F18. Measurements of magnetic susceptibility using the MST compared with electrical conductivity from the NCR on Sections 304-U1309D-35R-1 through 36R-1, lithologic Unit 88 (oxide gabbros). A. Raw measurements. Note apparently noisy susceptibility signal. B. After application of an arbitrary additive constant of either 10,000 SI or 20,000 SI (one or two times full range). Following this correction, the susceptibility signal is much less noisy and correlates well with the conductivity signal. However, it is not possible to know a priori the number of times 10,000 must be added to the recorder value.

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