Ridge and Valley
A region in Pennsylvania made famous by NASA's LANDSAT images. This province is the second largest in the state and is home to the famous anthracite fields. The rocks here are severely folded and contain numerous anticlines and synclines that plunge and fold back over each other. There are numerous thrust faults that help create a chaotic mess. Most of the deformation is result of continent to continent collision during the Alleghenian orogeny. There are seven distinct regions of the province and they are listed below. Much of the drainage patterns in the province is trellis.
Read more about this topic: Geology Of Pennsylvania
Famous quotes containing the words ridge and/or valley:
“The self-consciousness of Pine Ridge manifests itself at the village’s edge in such signs as “Drive Keerful,” “Don’t Hit Our Young ‘uns,” and “You-all Hurry Back”Mlocutions which nearly all Arkansas hill people use daily but would never dream of putting in print.”
—Administration in the State of Arka, U.S. public relief program (1935-1943)
“Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.”
—Bible: Hebrew Psalms, 23:4.