Lenox Hills and Neal Ranch Formations, undivided (TXPln;0)

State	Texas
Name	Lenox Hills and Neal Ranch Formations, undivided
Geologic age	Permian; Wolfcamp Series
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale (Bed) Sedimentary > Clastic > Conglomerate (Bed) Minor Sedimentary > Carbonate > Limestone (Bed) Incidental Sedimentary > Carbonate > Dolostone (Bed)
Comments	Crops out on lower, southeast flanks of Dugout, Leonard, and Glass Mountains, and around Wolf Camp Hills, 15 km west to 30 km northeast of Marathon, Brewster County, Texas. Lenox Hills Fm conglo., shale, limest., and dolomite, varying widely in proportion fr. place to place. 276 ft thick in type section. Neal Ranch Fm 412-547 ft of dk gray shale laternating with thin or massive beds of limestone. Thins eastward. 16 or 17 cyclothems topped by calcarenite followed downward by med to lt gray shale. Fetid shale at base; thickness of Neal Ranch 300 ft at type section.
References	Ross, C.A., 1959, The Wolfcamp Series (Permian) and new species of fusulinids, Glass Mountains, Texas: Journal of the Washington Academy of Sciences, v. 49, no. 9, p. 299-316. Cooper, G.A. and Grant, R.E., 1966, Permian rock units in the Glass Mountains, west Texas: Geological Survey Bulletin 1244-E. Bureau of Economic Geology, 1982, Fort Stockton Sheet, Geologic Atlas of Texas, University of Texas at Austin, scale 1:250,000. Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000.
NGMDB product	NGMDB product page for 68390
Counties	Brewster - Pecos

State

Texas

Name

Lenox Hills and Neal Ranch Formations, undivided

Geologic age

Permian; Wolfcamp Series

Lithologic constituents

Major

Sedimentary > Clastic > Mudstone > Shale (Bed)

Sedimentary > Clastic > Conglomerate (Bed)

Minor

Sedimentary > Carbonate > Limestone (Bed)

Incidental

Sedimentary > Carbonate > Dolostone (Bed)

Comments

Crops out on lower, southeast flanks of Dugout, Leonard, and Glass Mountains, and around Wolf Camp Hills, 15 km west to 30 km northeast of Marathon, Brewster County, Texas. Lenox Hills Fm conglo., shale, limest., and dolomite, varying widely in proportion fr. place to place. 276 ft thick in type section. Neal Ranch Fm 412-547 ft of dk gray shale laternating with thin or massive beds of limestone. Thins eastward. 16 or 17 cyclothems topped by calcarenite followed downward by med to lt gray shale. Fetid shale at base; thickness of Neal Ranch 300 ft at type section.

References

Ross, C.A., 1959, The Wolfcamp Series (Permian) and new species of fusulinids, Glass Mountains, Texas: Journal of the Washington Academy of Sciences, v. 49, no. 9, p. 299-316.

Cooper, G.A. and Grant, R.E., 1966, Permian rock units in the Glass Mountains, west Texas: Geological Survey Bulletin 1244-E.

Bureau of Economic Geology, 1982, Fort Stockton Sheet, Geologic Atlas of Texas, University of Texas at Austin, scale 1:250,000.

Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000.

NGMDB product

NGMDB product page for 68390

Counties

Brewster - Pecos