Magnetic susceptibility (MS) and sediment lightness (L*) data collected from Holes 1267A and 1267B at 2.5-cm intervals were used to construct the composite section for Site 1267 (Figs. F3, F4). The MS data were primarily used for core-to-core correlation and to construct the composite section. The depth offsets that define the composite section for Site 1267 are given in Table T2.
The composite data show that the cores from Site 1267 provide a continuous sequence down to 267 meters composite depth (mcd), the base of the last APC core in Hole 1267B (Core 208-1267B-26H; upper Paleocene). The hole-to-hole correlation in the interval between 63 and 75 mcd (Cores 208-1267A-7H and 8H and 208-1267B-8H) is ambiguous due to sediment disturbances. The XCB-cored interval between 267 and 368 mcd is characterized by five gaps in the composite record. The composite depth section below 267 mcd was constructed by using the average growth rate of 13% of the overlying 0- to 267-mcd interval (Fig. F5). Following construction of the composite depth section for Site 1267, a single spliced record was assembled from the aligned core intervals from the two parallel holes (Table T3).
Cores that had been significantly stretched, squeezed, or disturbed by the coring process were not used for the splice. The P/E boundary interval in the composite was taken from Core 208-1267B-23H (231.5 mcd); the K/P boundary interval in the composite was taken from Core 208-1267A-31X (320.3 mcd). The Site 1267 splice can be used as a guide to sample a single sedimentary sequence between 0 and 367.5 mcd and was used to plot other data sets from this site.