Lynn S. Fichter: James Madison University
Richard J. Diecchio: George Mason University
Reproduced with permission from Authors
Converted to HTML
Steve J. Baedke: James Madison University
I. INTRODUCTION 1. PHYSIOGRAPHIC SETTING 2. HISTORICAL BACKGROUND 3. GEOLOGIC EVIDENCE FOR OCEANIC CONVERGENCE AND SUBDUCTION A. Plutons, Volcanics, and Bentonites B. Lithospheric Flexure C. Controls on Carbonate Deposition D. Clastic Wedges E. Structural Deformation and Metamorphism 4. EVENTS IN THE CLOSURE OF THE POTO-ATLANTIC A. Taconic Orogeny B. Acadian Orogeny C. Alleghanian Orogeny II. DESCRIPTION OF FIELD STOPS 1. Stops 1 - 3: Formations of the Divergent (Passive) Continental Margin and Deposited in the Eastern Flysch Basin During the Taconic Orogeny A. Stop 1 - Shenandoah Valley Section: Beekmantown, New Market, Lincolnshire, and Edinburg Formations B. Stop 2-Shenandoah Valley Section: Martinsburg Formation C. Stop 3-Shenandoah Valley Section: Middle Ordovician bentonite in the Edinburg Formation 2. Stops 4 - 7: The Taconic Clastic Wedge Of the Western Cratonic Basin A. Stop 4: Germany Valley Overlook B. Stop 5: Germany Valley Section: Trentonian (Dolly Ridge Formation) C. Stop 6: Stop 6-Western facies of the Ordovician clastic wedge D. Stop 7: Stop 7-Junitata and Tuscarora Formations 3. Stop 8: The Silurian and Lower Devonian Calm Between The Taconic and Acadian Orogenies A. Stop 8: Oak Flat Section 4. Stops 9 - 13: The Catskill Clastic Wedge Of the Acadian Orogeny A. Stop 9: The Needmore Formation B. Stop 10: Millboro Formation C. Stop 11: Brallier Formation D. Stop 12: Chemung-Hampshire Transition E. Stop 13: Pocono Formation III. REFERENCES CITED