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The
Florissant Formation: A Virtual Tour
Wall Moutain Tuff Close-Up |
 Close-up of Wall Mountain Tuff |
Wall Mountain Tuff The Wall Mountain Tuff is the oldest Paleogene rock within the monument and was formed by a pyroclastic flow that swept through and carpeted the ancient Florissant valley. This tuff is a rhyolitic ignimbrite that rests unconformably on the eroded surface of the Pikes Peak Granite (Evanoff, McIntosh, and Murphey, 2001, p. 4). |
Bibliography |
| Evanoff, E., McIntosh, W.C. and Murphey, P.C. (2001). Stratigraphic Summary and 40Ar/39Ar Geocrhonology of the Florissant Formation, Colorado. In Evanoff, E., Gregory-Wodzicki K.M. and Johnson, K.R. [Eds.] Fossil Flora and Stratigraphy of the Florissant Formation, Colorado. (pp. 1-16). Proceedings of the Denver Museum of Nature and Science, series 4, number 1. |