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Executive summary

Fossil fuels from the Appalachian basin region have been major contributors to the Nation’s energy needs over much of the last three centuries. Early records indicate that Appalachian coal was first mined in the middle 1700s (Virginia and Pennsylvania) and was used sparingly to fuel colonial settlements and, later, a fledgling industrial-based economy along the eastern seaboard of the United State
Authors
Leslie F. Ruppert, Robert T. Ryder

Coal and petroleum resources in the Appalachian basin: index maps of included studies

This chapter B.1 of U.S. Geological Survey (USGS) Professional Paper 1708 provides index maps for many of the studies described in other chapters of the report. Scientists of the USGS and State geological surveys studied coal and petroleum resources in the central and southern Appalachian structural basins. In the southern Appalachian basin, studies focused on the coal-bearing parts of the Black W
Authors
Leslie F. Ruppert, Michael H. Trippi, Scott A. Kinney

Coal and petroleum resources in the Appalachian basin: distribution, geologic framework, and geochemical character

Fossil fuels from the Appalachian basin region have been major contributors to the Nation’s energy supplies over much of the last three centuries. Appalachian coal and petroleum resources are still available in sufficient quantities to contribute significantly to fulfilling the Nation’s energy needs. Although both conventional oil and gas continue to be produced in the Appalachian basin, most new

Tectonic evolution of the Tualatin basin, northwest Oregon, as revealed by inversion of gravity data

The Tualatin basin, west of Portland (Oregon, USA), coincides with a 110 mGal gravity low along the Puget-Willamette lowland. New gravity measurements (n = 3000) reveal a three-dimensional (3-D) subsurface geometry suggesting early development as a fault-bounded pull-apart basin. A strong northwest-trending gravity gradient coincides with the Gales Creek fault, which forms the southwestern boundar
Authors
Darcy McPhee, Victoria E. Langenheim, Ray Wells, Richard J. Blakely

Geomorphic evidence for enhanced Pliocene-Quaternary faulting in the northwestern Basin and Range

Mountains in the U.S. Basin and Range Province are similar in form, yet they have different histories of deformation and uplift. Unfortunately, chronicling fault slip with techniques like thermochronology and geodetics can still leave sizable, yet potentially important gaps at Pliocene–Quaternary (∼105–106 yr) time scales. Here, we combine existing geochronology with new geomorphic observations an
Authors
Magdalena A Ellis, Barnes Jason B, Joseph Colgan

40Ar/39Ar geochronology, paleomagnetism, and evolution of the Boring volcanic field, Oregon and Washington, USA

The 40Ar/39Ar investigations of a large suite of fine-grained basaltic rocks of the Boring volcanic field (BVF), Oregon and Washington (USA), yielded two primary results. (1) Using age control from paleomagnetic polarity, stratigraphy, and available plateau ages, 40Ar/39Ar recoil model ages are defined that provide reliable age results in the absence of an age plateau, even in cases of significant
Authors
Robert J. Fleck, Jonathan T. Hagstrum, Andrew T. Calvert, Russell C. Evarts, Richard M. Conrey

Digital data in support of studies and assessments of coal and petroleum resources in the Appalachian basin

The Appalachian basin is a mature basin containing abundant oil, gas, and coal resources. Its fossil-fuel-bearing strata range in age from Cambrian to Permian and extend over the States of New York, Pennsylvania, Maryland, Ohio, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. The basin has provided abundant fossil fuels to support the Nation’s economic growth for at least 150 y
Authors
Michael H. Trippi, Scott A. Kinney, Gregory L. Gunther, Robert T. Ryder, Leslie F. Ruppert

Selected references: Gas geochemistry of the central and southern Appalachian basin

No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Román Colón

Selected references: Coalbed-methane resources of the central and southern Appalachian basin

No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Román Colón

Selected references: Thermal history of the central and southern Appalachian basin

No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Román Colón

Selected references: Oil and gas resources of the central and southern Appalachian basin

No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Román Colón

Coal assessments and coal research in the Appalachian basin

Coal is one of our most important domestic energy resources, producing 37 percent of the Nation’s electricity in 2012. Coal mining within the Appalachian basin has been ongoing for three centuries and, cumulatively, the basin is the most productive coal region in the United States. In 2012, only the Powder River basin produced more coal than the Appalachian basin. Coal is the most important mined
Authors
Susan J. Tewalt, Leslie F. Ruppert