Snowmass Mountain |
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Geology (Snowmass Mountain)Title: Young Granites Entered by: rockdoc53 Added: 10/19/2010, Last Updated: 10/19/2010 Sources: Wallace, A.R., 1995, Isotopic Geochronology of the Leadville 1degx2deg Quadrangle, West-Central Colorado- Summary and Discussion: U.S.Geological Survey Bulletin 2104, 51 p. Snowmass Mountain and Capitol Peak consist of a relatively young granitic intrusive (granodiorite) with an K-Ar age date of 35 million years (Oligocene), and is slightly older than Mount Sopris (34.2 million years) and the mineralization in the Snowmass area. |