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Fort Union Formation

FORT UNION FORMATION Tongue River Member--Thick beds of yellow sandstone interbedded with gray and black shale and many coal beds.
StateWyoming
NameFort Union Formation
Geologic agePhanerozoic | Cenozoic | Tertiary | Paleocene
Original map labelTftr
CommentsYoungest of the 3 Fort Union members
Primary rock typesandstone
Secondary rock typeshale
Other rock typescoal
Lithologic constituents
Major
Sedimentary > Coal
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Sandstone
Map references
Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey.
Unit references
Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey.
Geographic coverageCampbell - Sheridan

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=WYTftr;0
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