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Maps are presented which show indices of organic diagenesis, and form part of a data base which includes previously published stratigraphic and structural data for assessing...
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View within SubmissionGathering Resources...Information on subsurface data, mineral compositions/amounts, in the Appalachian Basin black shales-
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View within SubmissionGathering Resources...Paper describing Appalachian Basin Hydrogeology; includes groundwater statistics, maps, diagrams, and charts.-
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View within SubmissionGathering Resources...Generalized geology and profile cross section of area within Appalachian Basin-
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View within SubmissionGathering Resources...Image of the thickness of the Utica Shale in the Appalachian Basin-
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View within SubmissionGathering Resources...The classic study by Epstein and others (1977), using conodont alteration index (CAI) isograds, is the established standard for evaluating thermal maturity patterns of lower...-
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View within SubmissionGathering Resources...The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined...-
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View within SubmissionGathering Resources...Paleozoic and Mesozoic rocks from 22 wells were analyzed. Fifteen wells are on the Appalachian Plateau, six are in the Ridge and Valley, and one well is in the Triassic rocks of...-
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View within SubmissionGathering Resources...The objective of this study is to enhance existing thermal maturity maps in Pennsylvania by establishing: 1) new subsurface CAI data points for the Ordovician and Devonian and...-
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View within SubmissionGathering Resources...A stratigraphic column, broken down by region, of the Appalachian Basin.-
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View within SubmissionGathering Resources...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...-
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View within SubmissionGathering Resources...Paper discussing the geology of the Devonian shales and the potential locations of gasses within it. From the paper: "The internal stratigraphy of almost any sedimentary...-
Dataset Size: 1.876 MB
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View within SubmissionGathering Resources...Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction Horizontal drilling and hydraulic fracturing are transforming energy...-
Dataset Size: 1.817 MB
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View within SubmissionGathering Resources...A geochemical context for stray gas investigations in the northern Appalachian Basin: Implications of analyses of natural gases from Neogene-through Devonian-age strata As the...-
Dataset Size: 1.959 MB
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View within SubmissionGathering Resources...The Middle Devonian Marcellus Shale is one of the premier gas shale plays of North America in terms of total gas resource, extent, production rates, and economic potential. The...-
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View within SubmissionGathering Resources...Cleavage duplexes are zones of platy, spaced cleavage, that either parallel bedding or ramp through shale sections. Examples are 2-60 m thick. The cleavage within the zones is...-
Dataset Size: 1.432 MB
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View within SubmissionGathering Resources...Regional Subsurface Geologic Cross Sections of the Mississippian System, Appalachian Basin, Eastern Kentucky; PDFs-
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View within SubmissionGathering Resources...The Council Run field of north central Pennsylvania is one of the most productive natural gas fields in the central Appalachian basin. The field is enigmatic because of its...-
Dataset Size: 2.617 MB
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View within SubmissionGathering Resources...The USGS has worked in partnership with the State geological surveys of Kentucky, West Virginia, Maryland, Ohio, Pennsylvania, and Virginia to complete this assessment. In...-
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View within SubmissionGathering Resources...A report detailing the surveying and resulting predictions for coal beds in regions of the Appalachian Basin. Data downloads include Coal Bed Thickness (Isopachs), Mined Area,...-
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View within SubmissionGathering Resources... -