Wissahickon Schist

Dense micaceous schist, gneiss and migmatite.
State Delaware
Name Wissahickon Schist
Geologic age Paleozoic
Lithologic constituents
Metamorphic > Gneiss
Metamorphic > Schist
Metamorphic > Migmatite
Comments Paleozoic(?), Lower Paleozoic(?), Glenarm Series

Spoljaric, Nenad and Jordan, Robert R., 1966, Generalized Geologic Map of Delaware SP4, State of Delaware, Delaware Geological Survey, scale ca. 1:300,000. Digitized by the Water Resources Division of the U.S. Geological Survey in the mid 1990's.

NGMDB product
Counties New Castle