Stratigraphy of the Devonian Chattanooga and Ohio shales and equivalents in the Appalachian basin: an example of long-range subsurface correlation using gamma-ray logs

Roen, John B.

doi:10.2172/5117336

Cited by 2 publications

(5 citation statements)

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“…The regional subsurface correlations are based on gamma-ray log interpretations by Roen (1980). These units contain the black shale beds that have proven to be the best sources of natural gas in the Appalachian basin (Bagnall and Ryan, 1976;Patchen, 1977).…”

Section: Mineralogy Of the Devonian Shalesmentioning

confidence: 99%

“…The Cleveland Member of the Ohio Shale and the upper unit of the Gassaway Member of the Chattanooga Shale are correlative (Conant and Swanson, 1961, p. 20;Roen, 1980, fig. 6).…”

Section: Cleveland Member Of the Ohio Shalementioning

confidence: 99%

“…The Chagrin Shale and its equivalent, the middle unit of the Gassaway Member of the Chattanooga Shale (Roen, 1980), were sampled from 10 drill holes in Tennessee, West Virginia, and Ohio (fig. 6).…”

Section: Chagrin Shalementioning

confidence: 99%

“…The shale units in the Java Formation the Hanover Shale Member and the Pipe Creek Shale Member are correlated with the upper unit of the Dowelltown Member of the Chattanooga Shale (Roen, 1980, fig. 5).…”

Section: Java Formationmentioning

confidence: 99%

“…We analyzed 189 samples from the Rhinestreet Shale Member of the West Falls Formation and its stratigraphic equivalent, the lower unit of the Dowelltown Member of the Chattanooga Shale (Roen, 1980, fig. 5) from 37 drill holes in New York, Pennsylvania, Ohio, West Virginia, Kentucky, and Tennessee (fig.…”

Section: Rhinestreet Shale Member Of the West Falls Formationmentioning

confidence: 99%

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Clay mineralogy of Devonian shales in the Appalachian Basin

Hosterman¹,

Whitlow²

1983

Professional Paper

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A study of the clay mineralogy of Devonian black shales in the Appalachian basin was undertaken to help predict areas of potential gas resources. More than 2,100 samples from 84 drill holes representing 11 shale units were analyzed for clay mineralogy or whole-rock mineralogy or both. Approximately 1,300 samples were from drill cores, and about 800 samples were from drill cuttings. Illite (2M) recrystallized during diagenesis is more or less uniformly present throughout all shale units. Chlorite formed during low-grade metamorphism is least abundant in the younger units and more abundant in the older units. Ulite-smectite mixed-layer clay, which supplied the material for the formation of chlorite, is most abundant in the younger units and least abundant in the older units. Illite-chlorite mixed-layer clay occurs in trace amounts in all shale units. Kaolinite, the only unaltered detrital clay mineral, occurs in about 25 to 30 percent of the samples. The source of the kaolinite appears to have been to the east and northeast of the basin of deposition. The color of the shale units is primarily due to organic content; however, for equal amounts of organic carbon, those shales that contain calcite are darker than those that do not.

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Section: Mineralogy Of the Devonian Shalesmentioning

confidence: 99%

“…The Cleveland Member of the Ohio Shale and the upper unit of the Gassaway Member of the Chattanooga Shale are correlative (Conant and Swanson, 1961, p. 20;Roen, 1980, fig. 6).…”

Section: Cleveland Member Of the Ohio Shalementioning

confidence: 99%

Section: Chagrin Shalementioning

confidence: 99%

Section: Java Formationmentioning

confidence: 99%

Section: Rhinestreet Shale Member Of the West Falls Formationmentioning

confidence: 99%

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Clay mineralogy of Devonian shales in the Appalachian Basin

Hosterman¹,

Whitlow²

1983

Professional Paper

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Geochemistry of trace elements and uranium in Devonian shales of the Appalachian Basin

Leventhal¹,

Crock²,

Malcolm³

1981

Open-File Report

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This final report summarizes the chemical data for 17 cores from Kentucky X (1), West Virginia (1), Pennsylvania (4), Ohio (4), New York (3), Tennessee (3) and Illinois (2). Major elements, for example Si and Al, show changes related to stratigraphic boundaries when the effect of organic matter, sulfur^ and carbonate are removed. The geochemical associations of trace elements with organic carbon and sulfide sulfur are shown in down-hole plots, minor or trace element vs organic C or sulfide S plots, and by statistical correlation. The uranium and molybdenum are most strongly related to organic carbon. Based on down-hole plots and statistics, sulfur seems to control the abundance of Hg, As, Cu, and Pb in some cores, and organic matter shows some control over Cu and Ni. Vanadium and zinc are usually related to organic carbon or sulfur or both. Carbon and sulfur contents and their ratios can be used to infer an environment of deposition using C/S plots and to show trace element pathway during deposition and diagenesis.

show abstract

Stratigraphy of the Devonian Chattanooga and Ohio shales and equivalents in the Appalachian basin: an example of long-range subsurface correlation using gamma-ray logs

Cited by 2 publications

References 5 publications

Clay mineralogy of Devonian shales in the Appalachian Basin

Clay mineralogy of Devonian shales in the Appalachian Basin

Geochemistry of trace elements and uranium in Devonian shales of the Appalachian Basin

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