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Transitional unit between Battle Spring and Wasatch Formations

TRANSITIONAL UNIT BETWEEN BATTLE SPRING AND WASATCH FORMATIONS--Contains interbedded lithologies of Battle Spring (Tbs) and Wasatch (Tw2) Formations.
State Wyoming
Name Transitional unit between Battle Spring and Wasatch Formations
Geologic age Phanerozoic | Cenozoic | Tertiary | Eocene
Primary rock type medium-grained mixed clastic
Secondary rock type fine-grained mixed clastic
Other rock types coarse-grained mixed clastic; coal
Lithologic constituents
Minor
Sedimentary > Clastic > Mudstone > Claystone
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Coal
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Sandstone > Arkose
Sedimentary > Clastic > Conglomerate
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.
Counties Fremont - Sweetwater