Core from hole ARC-6A from approximately 1780-1790 feet [542.7-545.7 m]. Upper left is the beginning of the interval and the lower right is the bottom. Core diameter is approximtely 7 cm. Crumbly, broken, decalcified muddy and silty sedimentary rocks thought to belong to the prospective Comus Formation. White veinlets are composed of late-stage calcite.