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Absaroka Volcanic Supergroup: Thoroughfare Creek Group--Two Ocean and Langford Formations

ABSAROKA VOLCANIC SUPERGROUP: THOROFARE CREEK GROUP (AGE 44 TO 49 Ma) Two Ocean and Langford Formations (age 47-48 Ma)--Dark-colored andesitic volcaniclastic rocks and flows underlain by light-colored andesitic tuffs and flows. In places may include Trout Peak Trachyandesite of Sunlight Group.
StateWyoming
NameAbsaroka Volcanic Supergroup: Thoroughfare Creek Group--Two Ocean and Langford Formations
Geologic agePhanerozoic | Cenozoic | Tertiary | Eocene (44-49 Ma)
Original map labelTtl
Primary rock typemixed clastic/volcanic
Secondary rock typeintermediate volcanic rock
Other rock types
Lithologic constituents
Major
Igneous > Volcanic (Volcaniclastic)
Igneous > Volcanic (Pyroclastic, tuff)
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 coverageFremont - Park - Teton

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