| The hydrothermally altered carbonates of the Trenton-Black River section are currently the most prolific natural gas exploration play in the Appalachian Plateau of New York State. The targets of this play are sag-style structures, which are associated with structures in the Precambrian basement. This research, conducted along the southeastern shore of Seneca Lake, demonstrates that the trends of deep faults observed in proprietary seismic and regional aeromagnetic data can be recognized at the surface through an integration of fracture intensification domains (FIDs), soil gas anomalies and EarthSat (1997) lineaments. The collected fracture data include nine characteristics for over 2550 individual fractures in the Devonian Catskill Delta sediments. The fracture frequency was determined for the four most prominent fracture sets, the NNW-, ENE-, N- and E-striking fracture sets. Spatial variations in fracture frequency are displayed through the use of modified rose diagrams and transects that run perpendicular to each set. (Abstract shortened by UMI.)... |
