Newcastle Sandstone and Skull Creek Shale (WYKns;0)

NEWCASTLE SANDSTONE AND SKULL CREEK SHALE. NEWCASTLE SANDSTONE--Gray sandstone and sandy shale containing some bentonite and coal. SKULL CREEK SHALE--Black soft fissile shale.

State	Wyoming
Name	Newcastle Sandstone and Skull Creek Shale
Geologic age	Phanerozoic \| Mesozoic \| Cretaceous-Early
Original map label	Kns
Primary rock type	sandstone
Secondary rock type	shale
Other rock types	bentonite; coal
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale Sedimentary > Clastic > Sandstone Minor Sedimentary > Coal Sedimentary > Clastic > Mudstone > Claystone > Bentonite
Map references	Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey. [http://pubs.er.usgs.gov/publication/ofr83802]
Unit references	Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey. [http://pubs.er.usgs.gov/publication/ofr83802]
Geographic coverage	Crook - Niobrara - Weston