Figure F25. Magnetostratigraphic, biostratigraphic, and MST data from Site 1218 and Site 1219 plotted on a common timescale (developed mainly from magnetic reversal datums that were composited from both sites after matching of lithologic cycles). Note the close correspondence between MST data from the two drill sites and calculated sedimentation rates. Biostratigraphic nannofossil datums and their uncertainty intervals agree well, whereas datums based on certain foraminifers do not agree. Black = normal magnetic polarity, white = reversed magnetic polarity. Ages are based on the GPTS by Cande and Kent (1995). VGP = virtual geomagnetic pole. Biostrat. = biostratigraphy. Sed. rate = sedimentation rate. GRA = gamma ray attenuation. Mag. sus. = magnetic susceptibility. Color refl. L* = color reflectance L*.

Figure F25. Magnetostratigraphic, biostratigraphic, and MST data from Site 1218 and Site 1219 plotted on a common timescale (developed mainly from magnetic reversal datums that were composited from both sites after matching of lithologic cycles). Note the close correspondence between MST data from the two drill sites and calculated sedimentation rates. Biostratigraphic nannofossil datums and their uncertainty intervals agree well, whereas datums based on certain foraminifers do not agree. Black = normal magnetic polarity, white = reversed magnetic polarity. Ages are based on the GPTS by Cande and Kent (1995). VGP = virtual geomagnetic pole. Biostrat. = biostratigraphy. Sed. rate = sedimentation rate. GRA = gamma ray attenuation. Mag. sus. = magnetic susceptibility. Color refl. L* = color reflectance L*.