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Figure F45. Representative vector endpoint diagrams (Zijderveld, 1967) for discrete sediment samples from stepwise AF demagnetization. All samples display a normal vertical component of magnetization caused by drilling that is removed after 5 mT demagnetization. Open and solid squares = projection of the magnetization vector end-points onto the vertical and horizontal planes, respectively. NRM = natural remanent magnetization. Blue lines = ChRM component derived by principal component analysis (Kirschvink, 1980).

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