USGS - science for a changing world

Mineral Resources On-Line Spatial Data

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

Hermosa Fm

Arkosic sandstone, conglomerate, shale, and limestone; gypsum and salt in Paradox Member present in salt anticlines near Utah border
StateColorado
NameHermosa Fm
Geologic agePhanerozoic | Paleozoic | Carboniferous Pennsylvanian
Original map label&h
Primary rock typesandstone
Secondary rock typeconglomerate
Other rock typesshale; limestone; evaporite
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Sandstone > Arkose
Sedimentary > Clastic > Mudstone > Shale
Minor
Sedimentary > Chemical > Evaporite > Gypsum
Map references
Tweto, Ogden 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.
Unit references
Tweto, Ogden 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.
Geographic coverageMesa - Montrose - Ouray - San Miguel

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=COPAh;0
Page Contact Information: Peter Schweitzer