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Upper Tertiary intrusive rocks

Intermediate to felsic compositions
StateColorado
NameUpper Tertiary intrusive rocks
Geologic agePhanerozoic | Cenozoic | Tertiary
Original map labelTui
Primary rock typeplutonic rock (phanerit
Secondary rock type
Other rock types
Lithologic constituents
Major
Igneous > Hypabyssal > Felsic-hypabyssalfelsite
Igneous > Hypabyssal > Mafic-hypabyssalintermediate
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 coverageDolores - Grand - Gunnison - Jackson - La Plata - Moffat - Routt - San Juan

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