USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Cody Shale and Frontier Formation (N, S)

CODY SHALE AND FRONTIER FORMATION north and south Wyoming. CODY SHALE (AGE 78 TO 83 Ma) (Kc2)--Dull-gray shale, gray siltstone, and fine-grained gray sandstone. FRONTIER FORMATION (Kf2)--Gray sandstone and sandy shale.
StateWyoming
NameCody Shale and Frontier Formation (N, S)
Geologic agePhanerozoic | Mesozoic | Cretaceous-Late (78-83 Ma)
Original map labelKcf
Primary rock typemudstone
Secondary rock typesandstone
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Mudstone > Shale
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 coverageCarbon

Show this information as [XML] - [JSON]

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=WYKcf;0
Page Contact Information: Peter Schweitzer