Dotsero, Colorado, USA

Dotsero

Dotsero

Volcano Type:      Maar
Volcano Status:    Radiocarbon
Last Known Eruption:     2200 BC ± 300 years
Summit Elevation:     2230 m    7,316 feet
Latitude:     39.661°N    39°39’38″N
Longitude:     107.035°W    107°2’6″W
Dotsero is a 700-meter (2,300 ft) wide by 400-meter (1,300 ft) deep maar volcano located in Dotsero, Colorado near the junction of the Colorado River and the Eagle River. It is classified as a scoria cone with evaporitic rock, basaltic tephra, and oxidized sandstone. Erupting approximately 4200 years ago, it is the youngest volcano in Colorado. It is currently dormant.

Dotsero by foryoublue5

Dotsero by foryoublue5

This Holocene volcano erupted in the year 2220 ± 300 years B.C. When Dotsero blew, it created small scoria cones that were constructed along a NNE-SSW line on either side of the maar. The eruption date is based upon radiocarbon dating of wood found underneath some of the scoria. It is one of the youngest eruptions in the continental U.S. and it produced an explosion crater, a lahar, and a 3-kilometer (1.9 mi) long lava flow.

Dotsero by floyd muad'dib

Dotsero by floyd muad'dib

Volcanoes that have erupted in the past 10,000 years are more likely to become active again.

Interstate 70 cuts across the lava flow.

Originally posted 2011-06-10 19:30:47.

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