Search results
Results from the WOW.Com Content Network
The central Colorado volcanic field (CCVF) is a volcanic field in Park County, Colorado.It is located in the southern Rocky Mountains and covered a roughly triangular area centered on the Thirtynine Mile volcanic area and extending from the Sawatch Range southeast to the northern Sangre de Cristo Range and the Wet Mountains and northeast to the southern Front Range south of Denver.
The Thirtynine Mile volcanic area, part of the larger Central Colorado volcanic field, is an extinct volcanic area located in Park and Teller counties, Colorado, northwest of Cripple Creek and southeast of South Park. [1] The area was the site of significant volcanism in the Paleogene Period about 35 million years ago.
Many geological features in Western United States have a Northeastern orientation, the North American craton motion has the same orientation as well. [1] For example: the Trans-Challis fault zone, Idaho; the Snake River in Oregon; the Garlock Fault, California; the Colorado River in Utah; the Colorado Mineral Belt; Crater Flat-Reveille Range-Lunar Crater lineament, the Northwestern Nevada ...
Central Colorado volcanic field; S. San Juan volcanic field This page was last edited on 2 January 2016, at 18:52 (UTC). Text is available under the Creative Commons ...
E. E. Larson [9] and others in 1975 and P. T. Leat [10] and others in 1989 briefly discussed the role of Dotsero Crater as part of regional volcanism in northwest Colorado in terms of both volcano-tectonism and geochemistry. Both papers provide only a very limited descriptions of the primary volcanic deposits at Dotsero Crater, some of which ...
Central Colorado volcanic field Thirtynine Mile Mountain , elevation 11,553 ft (3,521 m), is a summit in the Front Range of the Pike National Forest in central Colorado . See also
Dacite is a silicic volcanic rock common in explosive eruptions, lava domes and short thick lava flows. There are also large intracaldera lavas composed of andesite , a volcanic rock compositionally intermediate between basalt (poor in silica content) and dacite (higher silica content) in the La Garita Caldera.
A volcanic field is an area of Earth's crust that is prone to localized volcanic activity. The type and number of volcanoes required to be called a "field" is not well-defined. [ 1 ] Volcanic fields usually consist of clusters of up to 100 volcanoes such as cinder cones .