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Figure F19. A-E. Composite magnetostratigraphic record from Site 1123. Depth scale is mcd from correlation between Holes 1123A, 1123B, and 1123C using whole-core magnetic susceptibility and reflectance data in combination with magnetic polarity datums (see "Composite Depths" in the "Site 1123" chapter). Some intervals of the record use stretched mcd depths where low-recovery intervals are stretched linearly to cover the full 9.5-m cored interval (see Fig. F22, and discussion in text). The inclination record is after a single demagnetization step of 20 mT. Black (white) represents normal (reversed) polarity and hatching defines intervals where polarity could not be determined because of drilling disturbances, flow-in, debris flow in core, or poor recovery intervals that were not able to be stretched. Ages for polarity reversal datums are from Berggren et al. (1995). Arrowheads represent core-catcher depths for fossil datums and arrow length represents possible error because of sampling intervals being confined to core-catcher samples (error bars extend up for last occurrences and down for first occurrences). Single occurrences and acme events have error bars extending to the core catcher sample above and below.

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