Figure F53. Orthogonal Zijderveld plots obtained from AF demagnetization of the NRM. A. Core 313-M0027A-69R, obtained using the antigyroremanent magnetization technique. B. Core 313-M0027A-177R, obtained using the antigyroremanent magnetization technique. C. Core 313-M0027-68R, obtained without the antigyroremanent magnetization technique. D. Core 313-M0027A-68R, obtained using the antigyroremanent magnetization technique. Black = NRM, blue = AF demagnetization at 15 mT, red = AF demagnetization at 30 mT, green = AF demagnetization at 60 mT.
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