Considered one of Delaware's most famous Piedmont outcrops, the Windy Hills Bridge outcrop is composed of mafic and felsic gneiss of the Windy Hills Gneiss. Much of the layering in the outcrop is regular and is 8-10 in. thick. At the contact between these layers there is evidence for partial melting. There is also an interesting layer of cobble just above the bedrock in this area presumed to be the contact with the Coastal Plain sediments. These photos were taken by Sebastian Carisio as part of the Data Preservation Project 2009-2010.
Summary
Considered one of Delaware's most famous Piedmont outcrops, the Windy Hills Bridge outcrop is composed of mafic and felsic gneiss of the Windy Hills Gneiss. Much of the layering in the outcrop is regular and is 8-10 in. thick. At the contact between these layers there is evidence for partial melting. There is also an interesting layer of cobble just above the bedrock in this area presumed to be the contact with the Coastal Plain sediments.
These photos were taken by Sebastian Carisio as part of the Data Preservation Project 2009-2010.
