Mount Bachelor

Mount Bachelor
View of Mount Bachelor and Sparks Lake
height	2764  m
location	Oregon , USA
Mountains	Cascade chain
Coordinates	43 ° 58 ′ 46 ″  N , 121 ° 41 ′ 19 ″  W Coordinates: 43 ° 58 ′ 46 ″  N , 121 ° 41 ′ 19 ″  W
Type	Stratovolcano (on the original shield volcano )
Age of the rock	maximum 15,000 years
Last eruption	8,000 to 10,000 years ago

Mount Bachelor is a stratovolcano in the state of Oregon , USA . The mountain is just 3 miles southwest of Tumalo Mountain , which rises on the other side of the Cascade Lakes Scenic Byway , and about 15 miles southeast of the South Sister . A series of small shield volcanoes and cinder cones extend south of Mount Bachelor . The city of Bend , the county seat des Deschutes County , is 20 miles east. The forests on Mount Bachelor are part of the Deschutes National Forest .

The mountain is a popular winter sports resort and highest ski area in the northwestern United States. The first ski lift was built in 1958.

geology

11,000 to 15,000 years ago, a shield volcano formed in place of today's Mount Bachelor . It was only later, when the eruptions became more powerful, that today's stratovolcano emerged. Of the larger volcanoes in the Three Sisters area, it is the youngest. The mountain consists mainly of basalt and basaltic andesite .

No volcanic activity is currently observed, although that does not mean that the volcano is extinct. Fumaroles occur occasionally where the rock is porous and therefore air permeable. The last eruption took place 8,000 to 10,000 years ago. Less than 7,000 years ago, the massive eruption of Mount Mazama further south-southwest (see also: Crater Lake National Park ) occurred . The ash completely covered Mount Bachelor, 110 km away.

Surname

The term Bachelor (English for bachelor ) alludes to its location at a certain distance from the Three Sisters . Until the 1980s, the volcano was called Bachelor Butte . Long before that, his name was Brother Jonathan .

Specialty

The Mount Bachelor served in 1981 as a "double" for Mount St. Helens in the film drama Mount St. Helens - The Killer Volcano .

Web links

Commons : Mount Bachelor  - collection of pictures, videos and audio files

• Summitpost.org about the Mount Bachelor (engl.)
• Mount Bachelor in the Global Volcanism Program of the Smithsonian Institution (English)
• US Geological Survey on Mt. Bachelor u. southern volcanoes

Individual evidence

1. ↑ Statistical information on the homepage of the Mount Bachelor ski area , accessed on May 17, 2020
2. ^ Mount Bachelor Volcanic Chain, Oregon. ( Memento of the original from January 9, 2009 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. accessed January 9, 2009 
3. ^ Charles A. Wood, Jürgen Kienle: Volcanoes of North America. Cambridge University Press, ISBN 0-521-43811-X , pp. 185-187.
4. ^ Lewis L. McArthur: Oregon Geographic Names. 7th edition. Oregon Historical Society Press, Portland, Oregon, ISBN 0-87595-277-1 , p. 664.