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

Ryder, Robert T.; Harris, Anita G.; Repetski, John E.; Crangle, Robert D.

doi:10.3133/pp1708e.2.2

Cited by 4 publications

(7 citation statements)

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“…Further, faults observed on seismic refl ection data in Quebec sup-port the contention that Iapetan-opening faults were reactivated during Taconic foreland basin subsidence, since the throw on the basal Cambrian nonconformity is greater than the throw on the Ordovician units (e.g., Séjourné et al, 2002). Similar Taconic fault geometries are observed in seismic refl ection data collected to the west-southwest and southwest of the Mohawk Valley (Jacobi, 2010(Jacobi, , 2011(Jacobi, , 2012 and are also well documented across the Rome Trough in Pennsylvania (e.g., Ryder et al, 1992;Ryder, 2014). Thus, it is clear that the crust was already broken when the Taconic thrusts loaded the Laurentian margin.…”

Section: Foreland Basin Subsidence: Implications For Structure and Tementioning

confidence: 75%

Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State

Jacobi¹,

Mitchell²

2018

Tectonics, Sedimentary Basins, and Provenance: A Celebration of the Career of William R. Dickinson

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Aseismic ridge subduction is common along modern convergent margins. We enumerate six criteria that can be used to recognize aseismic ridge subduction in orogens, including a magmatic gap with uplift followed by bimodal volcanism, which commonly includes explosive, voluminous rhyodacitic volcanism that erupts far from the trench. Features temporally linked with the explosive volcanism include retroarc thrusts and consequent thrust-loaded retroarc foreland basin development. Using these criteria to examine features of the Taconic orogen, together with new stratigraphic and structural data from the Utica basin that constrain the basin subsidence architecture and thrust timing, we propose that at least the older units of the 456-435 Ma Oliverian Plutonic Suite in New England were generated during steepening of the downgoing slab after passage of a subducting aseismic ridge. Weakened crust from delamination and decompression melting promoted westerly directed thrusts (present-day coordinates) that loaded the Taconic retroarc foreland. The resulting Utica basin subsided rapidly and nearly synchronously over an ~150-kmwide region and contains interbedded 453-451 Ma ash layers from the Oliverian Plutonic Suite or coeval plutons to the south. This history of basin subsidence indicates that the major thrust loads that drove development of the Utica basin were emplaced over a similarly brief interval beginning ca. 455 Ma. Thus, the Taconic thrusts, the Utica basin, the volcanic ashes, and the early Oliverian felsic magmatic units could all be related to an aseismic ridge subduction event. Because of the ubiquity of seamount chains, we expect that aseismic ridge subduction affected other segments of the Taconic orogen.

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Section: Foreland Basin Subsidence: Implications For Structure and Tementioning

confidence: 75%

Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State

Jacobi¹,

Mitchell²

2018

Tectonics, Sedimentary Basins, and Provenance: A Celebration of the Career of William R. Dickinson

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“…The Marcellus Shale in the Appalachian Basin is underlain by ~300-400 m of halite, anhydrite, and shale of the Silurian Salina Group (Ryder et al, 1992(Ryder et al, , 2012 (Fig. 4).…”

Section: Lithologic Characteristics Beneath the Target Intervalmentioning

confidence: 99%

Proximity of Precambrian basement affects the likelihood of induced seismicity in the Appalachian, Illinois, and Williston Basins, central and eastern United States

2018

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A dramatic seismicity rate increase in the central and eastern United States (CEUS) over the past decade has been largely associated with the increase in enhanced oil and gas recovery operations and change in industry practices. However, certain areas of the CEUS that have experienced large increases in oil and gas operations, such as the Bakken and Marcellus Shale plays (Williston and Appalachian Basins, respectively), have very little (if any) induced seismicity. No prior study has adequately explained the occurrence or absence of induced seismicity on a regional, basin-to-basin scale in the CEUS. In this study, we improve the basement depth characterization and induced seismicity detection for the Appalachian, Illinois, and Williston Basins to determine whether the proximity of wastewater disposal and/or hydraulic fracturing to the crystalline basement increases the likelihood of induced seismicity. We also investigate the lithologic characteristics of sedimentary strata situated between injection intervals and the crystalline basement to evaluate the role they may play in diminishing the transmission of pore pressure during well stimulations. We find that wastewater disposal in basal sediments or hydraulic fracturing operations <1 km from the Precambrian basement raise the likelihood of induced seismicity, an observation that is consistent with the apparent absence of induced seismicity related to production from the Bakken and Marcellus Shale plays.

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“…4). A local static earth model (SEM) was developed for the study area based on detailed analysis of geophysical logs, core tests, and deep well logs 5,10,15,16,17 . The stacked reservoirs included the Rose Run sandstone (where the formation is not being used for oil and gas production), vugular lower Copper Ridge dolomite, and vugular/paleokarst Maryville formation.…”

Section: Methodsmentioning

confidence: 99%

Leveraging operational information from wastewater injection wells to evaluate CO₂ injection performance for carbon storage applications in the Appalachian Basin

et al. 2020

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Geologic parameters, geophysical logging, injection testing, and operational metrics from wastewater injection wells were integrated to develop a preliminary design of a carbon storage facility in the Appalachian Basin. A scattered group of 10-20 commercial wastewater injection wells dispose off produced water from oil and gas wells in the region, utilizing a sequence of stacked deep saline formations for injection zones. These wastewater injection wells provide practical benchmarks for understanding the feasibility of carbon dioxide (CO 2 ) storage. Geologic models were developed based on characterization data from the wastewater injection wells. Reservoir simulations were calibrated according to injection testing and operational data from the wastewater injection wells. Long-term operational data on injection flow rates and pressures measured in the wastewater injection wells were especially useful to evaluate the performance of carbon storage applications. The simulations were used to estimate injection pressures, radius of CO 2 saturation, and pressure response for industrial scale CO 2 storage applications. Results were also used to provide a design basis in terms of number of injection wells, well spacing, area of review, injection system components, monitoring plan, and CO 2 pipeline distribution system. The analysis demonstrates that there is sufficient injectivity in the deep saline formations in the west-central Appalachian Basin to store commercial volumes of anthropogenic CO 2 . The geologic system appears suitable for supporting CO 2 injection rates of 0.5-1.0 million metric tons per year at injection pressures below formation fracture pressure in a single well. The long-term operational data of wastewater injection wells within the study area suggested a lower permeability-thickness values than indicated by initial reservoir tests. A workflow for developing realistic permeability values for input into reservoir simulations is presented.

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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

Cited by 4 publications

References 0 publications

Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State

Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State

Proximity of Precambrian basement affects the likelihood of induced seismicity in the Appalachian, Illinois, and Williston Basins, central and eastern United States

Leveraging operational information from wastewater injection wells to evaluate CO₂ injection performance for carbon storage applications in the Appalachian Basin

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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

Cited by 4 publications

References 0 publications

Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State

Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State

Proximity of Precambrian basement affects the likelihood of induced seismicity in the Appalachian, Illinois, and Williston Basins, central and eastern United States

Leveraging operational information from wastewater injection wells to evaluate CO2 injection performance for carbon storage applications in the Appalachian Basin

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Leveraging operational information from wastewater injection wells to evaluate CO₂ injection performance for carbon storage applications in the Appalachian Basin