Preliminary stratigraphic cross section showing radioactive zones in the Devonian black shales of the central part of the Appalachian basin

Roen, John B.; Wallace, L.G.; Witt, Wallace De

doi:10.3133/ofr77841

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rickard (1984Rickard ( , 1989 Marcellus Formation. Last, a series of stratigraphic cross-sections and isopach maps of the Devonian clastic succession of the Appalachian Basin, including the Marcellus Formation, were published as part of the Eastern Gas Shales Project of the late 1970s and early 1980s (e.g., de Witt et al, 1975;West, 1978;Roen et al, 1978;Kamakaris and Van Tyne, 1980).…”

Section: Marcellus Formation: Subsurface Lithostratigraphy and Thicknmentioning

confidence: 99%

Thickness trends and sequence stratigraphy of the Middle Devonian Marcellus Formation, Appalachian Basin: Implications for Acadian foreland basin evolution

Lash¹,

Engelder²

2011

Bulletin

122

108

View full text Add to dashboard Cite

Analysis of more than 900 wireline logs indicates that the Middle Devonian Marcellus Formation encompasses two thirdorder transgressive-regressive (T-R) sequences, MSS1 and MSS2, in ascending order. Compositional elements of the Marcellus Formation crucial to the successful development of this emerging shale gas play, including quartz, clay, carbonate, pyrite, and organic carbon, vary predictably within the proposed sequencestratigraphic framework. Thickness trends of Marcellus T-R sequences and lithostratigraphic units reflect the interplay of Acadian thrust-load-induced subsidence, short-term base-level fluctuations, and recurrent basement structures. Rapid thickening of both T-R sequences, especially MSS2, toward the northeastern region of the basin preserves a record of greater accommodation space and proximity to clastic sources early in the Acadian orogeny. However, local variations in T-R sequence thickness in the western, more distal, area of the basin may reflect the reactivation of inherited Eocambrian basement structures, including the Rome trough and northwest-striking cross-structural discontinuities, induced by Acadian plate convergence. Episodes of block displacement locally warped the basin into northeast-southwest-trending regions of starved sedimentation and/or erosion adjacent to depocenters in which regressive systems tract deposits were ponded. Block movement

show abstract

Section: Marcellus Formation: Subsurface Lithostratigraphy and Thicknmentioning

confidence: 99%

Thickness trends and sequence stratigraphy of the Middle Devonian Marcellus Formation, Appalachian Basin: Implications for Acadian foreland basin evolution

Lash¹,

Engelder²

2011

Bulletin

122

108

View full text Add to dashboard Cite

show abstract

“…The nomenclature and age of the black shale as a whole in the Big Stone Gap area was last reviewed by Roen and others (1964). Additional important publications on the stratigraphy of Big Stone Gap shale are stratigraphic cross sections by Wallace, Roen, and de Witt (1977), Roen, Wallace, and de Witt (1978), and West (1978). These sections extend from southwestern New York almost to Cumberland Gap, and the publications are pioneering efforts to correlate the many different stratigraphic units of the Devonian shale sequence of the Appalachian basin.…”

mentioning

confidence: 99%

Stratigraphy of the Chattanooga Shale (Upper Devonian and Lower Mississippian) in vicinity of Big Stone Gap, Wise County, Virginia, with a section on petrology

Kepferle¹,

Potter²,

Pryor³

et al. 1981

View full text Add to dashboard Cite

Floods on the Powell River in April1977 exposed a classic section of the Chattanooga Shale (Devonian and Mississippian) in Big Stone Gap, Va. Within a month after the flood, the authors examined the section, collected samples, logged the radioactivity, measured joints, and described the lithology. The gamma-ray log of the section closely resembles the gamma-ray profile of the upper one-half of the Chattanooga Shale sequence in a nearby well, Columbia Gas Transmission Corp., Pennsylvania-Virginia Corp., farm well no. 20338, from which an oriented core has been taken by the U.S. Department of Energy's Morgantown Energy Research Center. Mapped surface units were compared and correlated with units identified in greater detail on the gamma-ray log from the well. Units of the Big Stone Gap Member in this section are equivalent to the Sunbury Shale (Lower Mississippian), the Bedford Shale (Upper Devonian and Lower Mississippian), and the Cleveland Member of the Ohio Shale (Upper Devonian). The middle gray-siltstone member of the Chattanooga Shale of the surface mapping includes the equivalents of the Three Lick Bed of the Ohio Shale and of the upper and middle parts of the Huron Member of the Ohio Shale. The Foerstia zone was found in the outcrop samples after an intensive search of the interval, which was shown by the gamma-ray log to correspond to the interval in the core where Foerstia were found. Composition, maximum grain size, and lamination were examined in 30 thin sections of the exposed rocks. Quartz and feldspar,_ clay, coarse micaceous minerals, organic matter, pyrite, chert, and rock fragments were recognized in decreasing abundance. Coarsest grains of quartz and feldspar range in size from fine sand to silt. Two types of lamination recognized in thin section are distinct silt laminae and distinct organic laminae. Joint orientation from 76 measurements show perpendicular bimodality. One mode parallels the present structural strike. Slight variations are evident in the differing rock types.

show abstract

Large-scale Tectonic Controls on the Origin of Paleozoic Dark-shale Source-rock Basins

Ettensohn¹,

Lierman²

Tectonics and Sedimentation

View full text Add to dashboard Cite

Preliminary stratigraphic cross section showing radioactive zones in the Devonian black shales of the central part of the Appalachian basin

Cited by 4 publications

References 0 publications

Thickness trends and sequence stratigraphy of the Middle Devonian Marcellus Formation, Appalachian Basin: Implications for Acadian foreland basin evolution

Thickness trends and sequence stratigraphy of the Middle Devonian Marcellus Formation, Appalachian Basin: Implications for Acadian foreland basin evolution

Stratigraphy of the Chattanooga Shale (Upper Devonian and Lower Mississippian) in vicinity of Big Stone Gap, Wise County, Virginia, with a section on petrology

Large-scale Tectonic Controls on the Origin of Paleozoic Dark-shale Source-rock Basins

Contact Info

Product

Resources

About