Cretaceous-Tertiary Boundary in New Jersey, Delaware, and Eastern Maryland


Book Description

The basal Tertiary Hornerstown Sand unconformably overlaps progressively lower truncated beds in the underlying Cretaceous section southwestward through New Jersey, Delaware, and eastern Maryland.













Upper Cretaceous


Book Description










Geological Survey Bulletin


Book Description

Definition and description of a new low-grade metamorphic sequence.







Upper Cretaceous ...


Book Description