USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Mineral Resources > Online Spatial Data > Geology > by state > Wyoming

Oligocene and (or) Upper and Middle Eocene rocks

OLIGOCENE AND (OR) UPPER AND MIDDLE EOCENE ROCKS--Light-gray tuff, arkosic sandstone, and lenticular conglomerate.
StateWyoming
NameOligocene and (or) Upper and Middle Eocene rocks
Geologic agePhanerozoic | Cenozoic | Tertiary | Eocene Oligocene
Original map labelToe
CommentsCOMU shows small box at Eocene/Oligocene boundary, then arrows down to roughly middle Eocene and up ending with a ? in the Oligocene.
Primary rock typemixed clastic/volcanic
Secondary rock typemedium-grained mixed clastic
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate (Lense)
Sedimentary > Clastic > Sandstone (Tuffaceous)
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 - Sublette

Show this information as [XML]

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=WYToe;0
Page Contact Information: Peter Schweitzer