| Capitol Peak |
|---|
Geology (Capitol Peak)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. |
Geology (Capitol Peak)Title: Rock Types Entered by: shredthegnar10 Added: 6/12/2010, Last Updated: 6/12/2010 Capitol Peak and Snowmass Mountain are composed of granites that intruded during the Tertiary Period towards the end of the Laramide orogeny (the event responsible for the uplift of the modern day Rocky Mountains). These granites are rich in quartz, mica, and plagioclase. |
