Figure F9. Representative sequence boundaries from the Millville borehole. Sequence boundary in the Englishtown Formation (1086.85 ft; 331.27 m) separates glauconite-rich sands above from fine–medium quartz sand below. Sequence boundary between the Cheesequake and Magothy Formations (1254.4 ft; 382.34 m) separates darker muddy sand above from pinkish gray fine sand with lignite below. Sequence boundary between the Brigantine and Shiloh Members of the Kirkwood Formation (223.6 ft; 68.15 m) separates blue-gray silty clays above from lignitic silty sands below. Sequence boundary between the Vincentown and Manasquan Formations (847 ft; 258.17 m) separates glauconitic sandy clay above from laminated clay with glauconite in burrows below. Sequence boundary between Bass River sequences II and III (1342.55 ft; 409.21 m) separates micaceous, slightly glauconitic muddy sand above from very micaceous silty clay below.