Sunbury Shale, Berea Sandstone, and Bedford Shale, Undivided (OHMDsb;0)

Sunbury Shale, Berea Sandstone, and Bedford Shale, Undivided - Shale and sandstone; upper 10 to 50 feet shale; black to brown, weathers light brown; carbonaceous; thin, planar bedding. Underlain by 10 to 50 feet sandstone; brown, weathers light brown to reddish brown; thin to thick bedded, planar to lenticular bedding; minor shale interbeds. Basal 80 to 100 feet shale and interbedded sandstone; gray to brown, weathers light gray to light brown; thin to medium bedded, planar to lenticular bedding; thick. Interval thickness ranges from 100 to 200 feet.

State	Ohio
Name	Sunbury Shale, Berea Sandstone, and Bedford Shale, Undivided
Geologic age	Devonian and/or Mississippian
Original map label	MDsb
Primary rock type	shale
Secondary rock type	sandstone
Other rock types	black shale
Lithologic constituents	Major Sedimentary > Clastic > Sandstone (Bed)Upper: 10 to 50 feet sandstone; brown, weathers light brown to reddish brown; thin to thick bedded, planar to lenticular bedding; minor shale interbeds; Basal 80 to 100 feet shale and interbedded sandstone; gray to brown, weathers light gray to light brown; thin to medium bedded, planar to lenticular bedding; thick. Interval thickness ranges from 100 to 200 feet. Sedimentary > Clastic > Mudstone > Shale (Calcareous)upper 10 to 50 feet shale; black to brown, weathers light brown; carbonaceous; thin, planar bedding; Basal 80 to 100 feet shale and interbedded sandstone; gray to brown, weathers light gray to light brown; thin to medium bedded, planar to lenticular bedding; thick. Interval thickness ranges from 100 to 200 feet. Incidental Sedimentary > Clastic > Mudstone > Shale > Black-shale (Calcareous)upper 10 to 50 feet shale; black to brown, weathers light brown; carbonaceous; thin, planar bedding; Basal 80 to 100 feet shale and interbedded sandstone; gray to brown, weathers light gray to light brown; thin to medium bedded, planar to lenticular bedding; thick. Interval thickness ranges from 100 to 200 feet.
Map references	Digital Ohio map from CD produced as a result of a contract between the U.S. Geological Survey and the Ohio Geological Survey. Released with permission of the Ohio Geological Survey, June 2005.
Unit references	Digital Ohio map from CD produced as a result of a contract between the U.S. Geological Survey and the Ohio Geological Survey. Released with permission of the Ohio Geological Survey, June 2005. File of unit descriptions received from Ohio Geological Survey.
Geographic coverage	Adams - Fairfield - Franklin - Highland - Licking - Pickaway - Pike - Ross - Scioto