Join us for a 3 stop Field Trip Saturday, November 8th.  We will meet at the Keplinger Lot north of Keplinger Hall at the University of Tulsa.  We will take vans out to the Grand Lake Spillway.  Lunch and Field Guide are included. 

A strand of the Seneca Fault is exposed in the Spillway of the Pensacola Dam in Disney, OK. There are 2 exposures: the “Pensacola Dam Area” roughly 550 meters south of Pensacola Dam in the spillway, and the “Tia Juana Area” to the east (Fig. 2). There is also abundant fault damage near Recreation Area #3, along the lake shore.

Field Trip Leader: Dr. Matt Hamilton

Matt worked as a wellsite geologist and geosteerer before returning to the University of Oklahoma for his PhD in Geological and Earth Sciences/Geosciences, graduating in 2021.  He was then joined the faculty at the University of Tulsa Department of Geosciences. 

His research has involved the combined application of petrographic, rock magnetic and geochemical methods to problems in petrology, structural geology and paleogeography. His dissertation research began with identification and characterization of secondary alteration features associated with fractures in the Precambrian igneous basement rocks in northeastern Oklahoma. In the uppermost basement and the lowermost clastic sediments, he also identified unusual magnetic behavior that appears to have resulted from alteration by fluids, and have been working with several advanced rock magnetic methods in order to identify the cause of this behavior. He has also applied his techniques to problems in the Marcellus Shale and several other Oklahoma units including the Cambro-Ordovician Arbuckle Group and underlying clastic sediments, early Cambrian granites and gabbros as well as likely Permian paleosols in the Wichita Mountains,  Jurassic sandstones from the the Morrison Formation, and Mesoproterozoic igneous basement rocks of northeast Oklahoma.