Figure F25. A histogram giving number of veins vs. their magnetic susceptibility in bins of 400 x 10-6 MU. In each case, magnetic susceptibility was taken as the maximum value in the interval of rock crossed by the vein. Of 203 veins noted in the vein-log spreadsheet, 196 occur in whole-round core. Of these, 79 (40.3%) are in core with background levels of magnetic susceptibility (<800 x 10-6 MU), and 117 are in peaks or peak regions (>800 x 10-6 MU) corresponding to oxide gabbros. Of the latter, 52 veins (26.5%) occur in oxide gabbros (>2000 x 10-6 MU).

Figure F25. A histogram giving number of veins vs. their magnetic susceptibility in bins of 400 x 10^-6 MU. In each case, magnetic susceptibility was taken as the maximum value in the interval of rock crossed by the vein. Of 203 veins noted in the vein-log spreadsheet, 196 occur in whole-round core. Of these, 79 (40.3%) are in core with background levels of magnetic susceptibility (<800 x 10^-6 MU), and 117 are in peaks or peak regions (>800 x 10^-6 MU) corresponding to oxide gabbros. Of the latter, 52 veins (26.5%) occur in oxide gabbros (>2000 x 10^-6 MU).