USGS - science for a changing world

Mineral Resources On-Line Spatial Data

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

Dolores Fm

Red siltstone, shale, sandstone, and limestone-pellet conglomerate
StateColorado
NameDolores Fm
Geologic agePhanerozoic | Mesozoic | Triassic
Original map label@d
Primary rock typesiltstone
Secondary rock typeshale
Other rock typessandstone; conglomerate
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Siltstone
Minor
Sedimentary > Clastic > Conglomeratelimestone-pellet conglomerate
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 coverageArchuleta - Dolores - Hinsdale - La Plata - Montezuma - San Juan - 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=COTRd;0
Page Contact Information: Peter Schweitzer