GSA Bookstore

From the Shield to the Sea: Geological Field Trips from the 2011 Joint Meeting of the GSA Northeastern and North-Central Sections

edited by Richard M. Ruffolo and Charles N. Ciampaglio

Preface		v
1.	Late Devonian paleontology and paleoenvironments at Red Hill and other fossil sites in the Catskill Formation of north-central Pennsylvania Edward B. Daeschler and Walter L. Cressler III	1
2.	An introduction to structures and stratigraphy in the proximal portion of the Middle Devonian Marcellus and Burket/Geneseo black shales in the Central Appalachian Valley and Ridge Terry Engelder, Rudy Slingerland, Michael Arthur, Gary Lash, Daniel Kohl, and D.P. Gold	17
3.	Pennsylvanian climatic events and their congruent biotic responses in the central Appalachian Basin David K. Brezinski and Albert D. Kollar	45
4.	Landslides in the vicinity of Pittsburgh, Pennsylvania Richard E. Gray, James V. Hamel, and William R. Adams Jr.	61
5.	Quaternary geology of northwestern Pennsylvania Gary M. Fleeger, Todd Grote, Eric Straffin, and John P. Szabo	87
6.	The history and geology of the Allegheny Portage Railroad, Blair and Cambria Counties, Pennsylvania John A. Harper	111
7.	Early industrial geology of western Pennsylvania and eastern Ohio: Early gristmills and iron furnaces west of the Alleghenies and their geologic contexts Joseph T. Hannibal, Tammie L. Gerke, Mary K. McGuire, Harry M. Edenborn, Ann L. Holstein, and David Parker	143
8.	The old, the crude, and the muddy: Oil history in western Pennsylvania Kristin M. Carter and Kathy J. Flaherty	169