folds

Deformation in the Piedmont

All the rock units in Delaware’s Piedmont are highly deformed. Deformational features, such as folds, faults, and/or joints, are present in almost every outcrop.

This page tagged with:

Baltimore Gneiss

Barley Mill Gneiss

Brandywine Blue Gneiss

Bringhurst Gabbro

Christianstead Gneiss

Cockeysville Marble

Faulkland Gneiss

Iron Hill Gabbro

Metapyroxenite and metagabbro (undifferentiated)

Mill Creek Metagabbro

Montchanin Metagabbro

Rockford Park Gneiss

Setters Formation

Wilmington Complex

Windy Hills Gneiss

Wissahickon Formation

crystalline rocks

Taconic Orogeny

Appalachian Piedmont

New Castle County

What are GeoAdventures?

GeoAdventures are designed to allow the reader to learn about a particular geologic point of interest in Delaware’s Piedmont province and then take a short field trip to that area. Want to know more about the Wilmington blue rock or Brandywine blue granite? Take the Wilmington Blue Rock GeoAdventure and go see just what the blue rock looks like.

This page tagged with:

Baltimore Gneiss

Barley Mill Gneiss

Cockeysville Marble

Faulkland Gneiss

Metapyroxenite and metagabbro (undifferentiated)

Setters Formation

Wilmington Complex

Windy Hills Gneiss

Wissahickon Formation

Taconic Orogeny

Appalachian Piedmont

Brandywine Springs

Hoopes Reservoir