Description
Item Description:Title from title screen (viewed September 15, 2014).
"The basal Tertiary Hornerstown Sand unconformably overlaps progressively lower truncated beds in the underlying Cretaceous section southwestward through New Jersey, Delaware, and eastern Maryland."
Physical Description:1 online resource (iii, 33 pages) : illustrations.
Bibliography:Includes bibliographical references (pages 31-33).