Fig. 5

Down-core changes in Site U1424 sediment color and NRM data with interpreted magnetostratigraphy and tephrostratigraphy. From left to right: image of core-sections used in this study, lithologic units and subunits, L* estimated from core images, NRM intensity data (35 mT demagnetization step), MAD values (blue) and α₉₅ (purple) associated with the PCA analyses and Fisher mean calculations, corrected PCA (green) and Fisher mean (gray) declinations, PCA (red) and Fisher mean (gray) inclinations, and interpreted magnetic polarity stratigraphy (black and white bars) and tephrochronology (horizontal red bars and labels). Core names (e.g., A1, B2) and section breaks are marked next to the core-section images. Light and dark gray points on L* plot are values estimated at 2 mm and 1 cm intervals respectively. Vertical gray dash-dotted lines on the inclination plot are expected inclinations during reversed and normal polarity intervals at Site U1424 assuming a geocentric axial dipole (GAD) field. NRM data, MAD and α₉₅ values from disturbed and tephra intervals are shown in lighter color, and not used for magnetostratigraphy interpretations