2017 Geological Association of New Jersey Annual Conference and Field Trip
GANJ XXXIV -
The focus of the meeting will be various
aspects of the Eastern Pennsylvania and Nothern Delaware piedmont
province. If you are working or have worked in the piedmont and would
like to present the results of your work or suggest a field trip
locality, please contact Howell Bosbyshell at West Chester University
When: October 13th (Fri.) and 14th (Sat.), 2017
Where: West Chester University, Pa.
The Department of Earth and Space Sciences of West Chester University is proud to host the 2017 Annual Meeting of the Geological Association of New Jersey on Friday and Saturday, October 13th and 14th. Friday will feature a symposium, student poster session, and workshops for K-12 teachers. The symposium will feature speakers whose research covers a range of topics concerning different aspects of the geology of the eastern Piedmont of Pennsylvania. A keynote address will be presented by Dr. Gale C. Blackmer, the current Pennsylvania State Geologist. Additional confirmed speakers include Ryan Kerrigan of the University of Pittsburgh Johnstown (geochemistry and mineralogy of ultramafic bodies in the Philadelphia area), Howell Bosbyshell of West Chester University (monazite and detrital zircon geochronology of the eastern Piedmont) and LeeAnn Srogi of West Chester University (magmatic plumbing of the Morgantown diabase). A show in West Chester’s newly renovated state of the art planetarium is planned for Friday evening.
The field trip will take place on Saturday, October 14 and will focus on the metamorphic rock along the Rosemont shear zone in Philadelphia, Delaware, and Chester counties of Pennsylvania and New Castle county in Delaware. The trip will highlight rocks, which have been the focus of recent research that has given rise to a new understanding of the tectonic evolution of southeastern Pennsylvania. Planned stops include a classic locality along Wissahickon Creek in Philadelphia, where the results of monazite geochronology demonstrate that the metamorphism is Devonian in age, the product of the Acadian orogeny. We will also visit the Chester Park Gneiss, which detrital zircon provenance suggests is a fragment of a peri-Gondwanan terrane. Stops also include a location near the contact between metaigneous rock the Wilmington Complex volcanic/magmatic arc and metasedimentary rock of the Wissahickon Formation and a look at rocks of the Baltimore Gneiss of the Avondale massif in Ridley Creek State Park, which are the focus of current research. We’ll examine the metasedimentary rock along the western margin of the Wilmington Complex in Delaware, which doesn’t fit neatly into our new model. We’ll end in the Doe Run Schist near West Chester, which is part of the newly designated West Grove Metamorphic Suite – the rock formerly known as “Glenarm Wissahickon.”
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