Stratigraphic analysis of Pennsylvania rocks using hierarchy of transgressive-regressive units
Pennsylvanian stratigraphic sequences is described, interpreted, and correlated using a hierarchy of six scales of allocyclic, time-stratigraphic, transgressive-regressive units (abbreviated T-R units are inferred to be the net result of deposition during eustatic cycles of sea level change. The T-R units can be correlated across both marine and nonmarine facies in the Appalachian Basin. This permits differentiation of allocyclic T-R units from autocyclic T-R units or fluvial autocyclic units. The precise correlations also provide a time-stratigraphic framework for very accurate paleogeographic reconstructions. Paleogeographic maps were constructed for successive fifth-order marine events of the Glenshaw Formation (Upper Pennsylvanian) of the Northern Appalachian Basin. The hierarchal T-R unit approach is useful for understanding and predicting the location of marine units, claystones, various types of stratigraphic breaks, and economic mineral deposits.
- Research Organization:
- Pittsburgh Univ., PA (USA)
- OSTI ID:
- 6061248
- Resource Relation:
- Other Information: Thesis (Ph.D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PENNSYLVANIAN PERIOD
STRATIGRAPHY
COAL
GEOLOGIC FAULTS
GEOLOGIC STRATA
GEOLOGY
PALEONTOLOGY
ROCKS
SEA LEVEL
TOPOGRAPHY
CARBONACEOUS MATERIALS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
LEVELS
MATERIALS
PALEOZOIC ERA
580100* - Geology & Hydrology- (-1989)