Figure F39. Example of vector endpoint diagrams of magnetization directions through stepwise AF and thermal demagnetization for basement basaltic rocks. A. Sample 322-C0012A-53R-2, 35–37 cm, demagnetized to 80 mT. B. Sister specimen of A taken as a fragment at the rim of core sample, measured postcruise with a cryogenic magnetometer to 80 mT. C. Sample 322-C0012A-54R-2, 77–79 cm, demagnetized to 50 mT. D. Enlargement of C below 23 mT AF demagnetization field. E. Sister specimen of C taken as a fragment of the rim of core sample, measured postcruise with a cryogenic magnetometer to 80 mT. F. Sister specimen of C taken between above two specimens, measured postcruise with a cryogenic magnetometer up to 600°C with a furnace. Open circles = projection of magnetization endpoints onto vertical plane, solid circles = projection of magnetization vector endpoints onto horizontal planes. NRM = natural remanent magnetization.
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