Seismicity and tectonic relationships of the Nemaha Uplift in Oklahoma: part 5
Abstract
The Nemaha Ridge is composed of a number of crustal blocks typically 3 to 5 miles (5 to 8 km) wide and 5 to 20 miles (8 to 32 km) long. Structure-contour maps prepared of the top of the Viola Formation (Ordovician), the base of the Pennsylvanian, and the top of the Oswego Formation (Middle Pennsylvania) reveal a complex fault pattern associated with the Nemaha Uplift. This fault pattern is dominated by several discontinuous uplifts, such as the Oklahoma City, Lovell, Garber, and Crescent Uplifts. A detailed study of the Oklahoma City Uplift suggests that a number of the Nemaha-related faults were developed in pre-Mississippian time. A lineament map was prepared for north-central Oklahoma. A detailed gravity map was prepared for the Kingfisher and Medford maxima. A total-intensity aeromagnetic map for the Enid and Oklahoma City 1 deg. by 2 deg. Quadrangles was prepared.
- Publication:
-
Final Report Oklahoma Univ
- Pub Date:
- February 1983
- Bibcode:
- 1983uok..rept.....L
- Keywords:
-
- Geological Faults;
- Mountains;
- Seismology;
- Tectonics;
- Displacement;
- Earthquakes;
- Mapping;
- Maps;
- Geophysics