Geologic cross section D-D' through the Appalachian basin from the Findlay arch, Sandusky County, Ohio, to the Valley and Ridge province, Hardy County, West Virginia
Robert T. Ryder, Robert D. Crangle Jr., Michael H. Trippi, Christopher S. Swezey, Erika E. Lentz, Elisabeth L. Rowan, Rebecca S. Hope
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.4.1
This chapter is a re-release of U.S. Geological Survey Scientific Investigations Map 3067, of the same title, by Ryder and others (2009). For this chapter, two appendixes have been added that do not appear with the original version. Appendix A provides Log ASCII Standard (LAS) files for each drill hole...
Thermal maturity patterns (conodont color alteration index and vitrinite reflectance) in Upper Ordovician and Devonian rocks of the Appalachian basin: A major revision of USGS Map I-917-E using new subsurface collections
John E. Repetski, Robert T. Ryder, David J. Weary, Anita G. Harris, Michael H. Trippi
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-F.1
Introduction The conodont color alteration index (CAI) introduced by Epstein and others (1977) and Harris and others (1978) is an important criterion for estimating the thermal maturity of Ordovician to Mississippian rocks in the Appalachian basin. Consequently, the CAI isograd maps of Harris and others...
Stratigraphic framework and depositional sequences in the Lower Silurian regional oil and gas accumulation, Appalachian basin from Jackson County, Ohio, through northwestern Pennsylvania, to Orleans County, New York
Robert T. Ryder
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.3.3
This chapter is a re-release of U.S. Geological Survey Scientific Investigations Map 2916, of the same title, by Ryder (2006)....
Stratigraphic framework and depositional sequences in the Lower Silurian regional oil and gas accumulation, Appalachian basin: from Licking County, Ohio, to Fayette County, West Virginia
Robert T. Ryder
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.3.2
This chapter is a re-release of U.S. Geological Survey Scientific Investigations Map 2916, of the same title, by Ryder (2006)....
Stratigraphic framework and depositional sequences in the Lower Silurian regional oil and gas accumulation, Appalachian basin: from Ashland County, Ohio, through southwestern Pennsylvania, to Preston County, West Virginia
Robert T. Ryder
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.3.1
This chapter is a re-release of U.S. Geological Survey Geologic Investigations Series Map I–2810, of the same title, by Ryder (2004)....
Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Campbell County, Kentucky, to Tazewell County, Virginia
Robert T. Ryder, John E. Repetski, Anita G. Harris, Erika E. Lentz
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.2.4
This chapter is a re-release of U.S. Geological Survey Miscellaneous Investigations Series Map I-2530, of the same title, by Ryder and others (1997; online version 2.0 revised and digitized by Erika E. Lentz, 2004). Version 2.0 is a digital version of the original and also includes the gamma-ray well log...
Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia
Robert T. Ryder, Robert D. Crangle Jr., John E. Repetski, Anita G. Harris
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.2.5
This chapter is a re-release of U.S. Geological Survey Scientific Investigations Map 2994, of the same title, by Ryder and others (2008)....
Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Richland County, Ohio, to Rockingham County, Virginia
Robert T. Ryder, Robert D. Crangle Jr.
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.2.3
This chapter is a re-release of U.S. Geological Survey Miscellaneous Investigations Series Map I-2264, of the same title, by Ryder (1991; online version 1.0 revised and digitized by Robert D. Crangle, Jr., 2003). Version 1.0 is a digital version of the original and also includes the gamma-ray well log traces....
Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia
Robert T. Ryder, Anita G. Harris, John E. Repetski, Robert D. Crangle Jr.
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.2.2
This chapter is a re-release of U.S. Geological Survey Bulletin 1839-K, of the same title, by Ryder and others (1992; online version 2.0 revised and digitized by Robert D. Crangle, Jr., 2003). It consists of one file of the report text as it appeared in USGS Bulletin 1839-K and a...
Stratigraphic framework of cambrian and ordovician rocks in the central Appalachian basin from Lake County, Ohio, to Juniata County, Pennsylvania
Robert T. Ryder, Robert D. Crangle Jr.
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.2.1
This chapter is a re-release of U.S. Geological Survey Miscellaneous Investigations Series Map I-2200, of the same title, by Ryder (1992; online version 1.0 revised and digitized by Robert D. Crangle, Jr., 2002). Version 1.0 is a digital verson of the original and also includes the gamma-ray well log traces....
Index map of cross sections through parts of the Appalachian basin (Kentucky, New York, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia)
Robert T. Ryder, Michael H. Trippi
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-E.1
Ten cross sections and three seismic profiles of regional extent through the subsurface of the Appalachian basin are presented in chapter E of this volume (fig. 1). These cross sections and seismic profiles are subdivided into four groups: (1) five restored cross sections through Cambrian and Ordovician rocks, (2) three...
Coal assessments and coal research in the Appalachian basin
Susan J. Tewalt, Leslie F. Ruppert
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-D.4
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...
Bituminous coal production in the Appalachian basin: past, present, and future
Robert C. Milici, Desiree E. Polyak
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-D.3
Although small quantities of coal first were produced from the Appalachian basin in the early 1700s, the first production statistics of significance were gathered during the census of 1830 (Eavenson, 1942). Since then, about 35 billion short tons of bituminous coal have been produced from the Appalachian basin from an...
Correlation chart of Pennsylvanian rocks in Alabama, Tennessee, Kentucky, Virginia, West Virginia, Ohio, Maryland, and Pennsylvania showing approximate position of coal beds, coal zones, and key stratigraphic units
Leslie F. Ruppert, Michael H. Trippi, Ernie R. Slucher
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-D.2
The Appalachian basin, one of the largest Pennsylvanian bituminous coal-producing regions in the world, currently contains nearly one-half of the top 15 coal-producing States in the United States (Energy Information Agency, 2006). Anthracite of Pennsylvanian age occurs in synclinal basins in eastern Pennsylvania, but production is minimal. A simplified correlation...
Coal and coalbed-methane resources in the Appalachian and Black Warrior basins: maps showing the distribution of coal fields, coal beds, and coalbed-methane fields
Michael H. Trippi, Leslie F. Ruppert, Robert C. Milici, Scott A. Kinney
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-D.1
The maps contained in this chapter show the locations of coal fields, coal beds assessed by the U.S. Geological Survey (USGS) in 2000, and coalbed-methane fields in the central and southern Appalachian basin study areas, which include the coal-producing parts of the Black Warrior basin. The maps were compiled and...
Geographic information system (GIS)-based maps of Appalachian basin oil and gas fields
Robert T. Ryder, Scott A. Kinney, Stephen E. Suitt, Matthew D. Merrill, Michael H. Trippi
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-C.2
One of the more recent maps of Appalachian basin oil and gas fields (and the adjoining Black Warrior basin) is the U.S. Geological Survey (USGS) compilation by Mast and others (1998) (see Trippi and others, this volume, chap. I.1). This map is part of a larger oil and gas field...
Appalachian basin oil and natural gas: stratigraphic framework, total petroleum systems, and estimated ultimate recovery
Robert T. Ryder, Robert C. Milici, Christopher S. Swezey, Michael H. Trippi
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-C.1
The most recent U.S. Geological Survey (USGS) assessment of undiscovered oil and gas resources of the Appalachian basin was completed in 2002 (Milici and others, 2003). This assessment was based on the total petroleum system (TPS), a concept introduced by Magoon and Dow (1994) and developed during subsequent studies such...
Coal and petroleum resources in the Appalachian basin: index maps of included studies
Leslie F. Ruppert, Michael H. Trippi, Scott A. Kinney
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-B.1
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...
Executive summary
Leslie F. Ruppert, Robert T. Ryder
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708-A.1
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...
Coal and petroleum resources in the Appalachian basin: distribution, geologic framework, and geochemical character
Leslie F. Ruppert, Robert T. Ryder, editor(s)
2014, Professional Paper 1708
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...
Late 20th Century benthic foraminiferal distribution in Central San Francisco Bay, California: Influence of the Trochammina hadai invasion
Mary L. McGann
2014, Micropaleontology (60) 519-542
The distribution of foraminifera in most of San Francisco Bay is well documented, but this is not the case for the subembayment known as Central Bay. To resolve this, 55 grab samples obtained in 1998 were analyzed to characterize the foraminiferal fauna in the surface sediments of the area. Thirty-five...
The quality of our Nation's waters: Water quality in the Denver Basin aquifer system, Colorado, 2003-05
Nancy J. Bauch, MaryLynn Musgrove, Barbara Mahler, Suzanne S. Paschke
2014, Circular 1357
Availability and sustainability of groundwater in the Denver Basin aquifer system depend on water quantity and water quality. The Denver Basin aquifer system underlies about 7,000 square miles of the Great Plains in eastern Colorado and is the primary or sole source of water for domestic and public supply in...
Developing a topographic model to predict the northern hardwood forest type within Carolina northern flying squirrel (Glaucomys sabrinus coloratus) recovery areas of the southern Appalachians
Andrew Evans, Richard H. Odom, Lynn M. Resler, W. Mark Ford, Stephen Prisley
2014, International Journal of Forestry Research (2014)
The northern hardwood forest type is an important habitat component for the endangered Carolina northern flying squirrel (CNFS; Glaucomys sabrinus coloratus) for den sites and corridor habitats between boreo-montane conifer patches foraging areas. Our study related terrain data to presence of northern hardwood forest type in the recovery areas of...
40Ar/39Ar geochronology, paleomagnetism, and evolution of the Boring volcanic field, Oregon and Washington, USA
Robert J. Fleck, Jonathan T. Hagstrum, Andrew T. Calvert, Russell C. Evarts, Richard M. Conrey
2014, Geosphere (10) 1283-1314
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...
Space use and resource selection by foraging Indiana bats at the northern edge of their distribution
David S. Jachowski, Joshua B. Johnson, Christopher A. Dobony, John W. Edwards, W. Mark Ford
2014, Endangered Species Research (24) 149-157
Despite 4 decades of conservation concern, managing endangered Indiana bat (Myotis sodalis) populations remains a difficult wildlife resource issue facing natural resource managers in the eastern United States. After small signs of population recovery, the recent emergence of white-nose syndrome has led to concerns of local and/or regional extirpation of...
