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Geologic Unit: Grayson
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Map showing publication footprint
  • Usage in publication:
    • Grayson sandstone bed*
  • Modifications:
    • Informally named
  • Dominant lithology:
    • Sandstone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Whittington, C.L., and Ferm, J.C., 1967, Geologic map of the Grayson quadrangle, Carter County, Kentucky: U.S. Geological Survey Geologic Quadrangle Map, GQ-640, scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_1950.htm]


Summary:

Grayson sandstone bed in Breathitt Formation described as gray micaceous and quartzose sandstone. Unit is fine-grained and contains stigmarian roots. Thickness ranges from 0 to 1.5 m in study area. Underlies Wolf Creek coal bed. Age is Early and Middle Pennsylvanian.

Source: GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Grayson sandstone bed*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

DeLaney, A.O., and Englund, K.J., 1973, Geologic map of the Ault quadrangle, northeastern Kentucky: U.S. Geological Survey Geologic Quadrangle Map, GQ-1066, scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_10611.htm]


Summary:

In the Ault quad. of northeastern KY, Grayson sandstone bed assigned to Lee Formation. Unit is light gray to white sandstone and conglomeratic sandstone. Age is Early and Middle Pennsylvanian.

Source: GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Grayson sandstone bed*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Appalachian basin
Publication:

Rice, C.L., and Hiett, J.K., 1994, Revised correlation chart of coal beds, coal zones, and key stratigraphic units in the Pennsylvanian rocks of eastern Kentucky: U.S. Geological Survey Miscellaneous Field Studies Map, MF-2275, 1 sheet.


Summary:

Grayson sandstone bed (informal) of Lee Formation of Whittington and Fern (1967). Sandstone. Is intercalated with rocks of the Breathitt Formation, below Crummies Member and above Betsie Shale Member; lies between the Bruin (or Wolf Creek) and Wheelersburg coal beds. Correlative with Caywood [Cawood] Sandstone Member of Breathitt Formation in Upper Cumberland River district, southeastern Kentucky. (Shown higher in section than the Frozen Sandstone Member of Breathitt Formation in Hazard district, eastern Kentucky, which is at same level in section as the Wheelersburg and Dixie coals.) Age is Middle Pennsylvanian.
Recognized locally in Princess district, eastern KY.
[See also Chesnut, 1997 (revised Oct. 12, 1999), Stratigraphy of the coal-bearing strata of the Eastern Kentucky coal field, available online through the Kentucky Geol. Survey (http://www.uky.edu/KGS/coal/coalcorrel.htm). Shows Cawood Sandstone Member = Grayson sandstone and higher in section than (descending) Wheelersburg or Dixie coal, and Frozen Sandstone.]

Source: Publication.


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