Figure F29. Plots of anisotropy of magnetic susceptibility vs. depth, Hole U1407A. Separation of eigenvalues is related to the shape and degree of the magnetic fabric (see “Paleomagnetism” in the “Methods” chapter [Norris et al., 2014b]). For example, if τ1 and τ2 are close or indistinguishable but distinct from τ3, then the bulk fabric is oblate. The absence of P (degree of anisotropy; τ1/ τ3) data points in lithostratigraphic Unit IV indicates that values are off-scale and considered spurious; see text for details. Lithostratigraphic units are described in “Lithostratigraphy.” Eigenvalues: τ1 = maximum, τ2 = intermediate, τ3 = minimum. V3 = minimum eigenvector. APC= advanced piston corer, XCB = extended core barrel.
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