Black Butte is an extinct stratovolcano in the U.S. state of Oregon. Located in Jefferson County, it is part of Deschutes National Forest. Black Butte forms part of the Cascade volcanic arc. The butte lies just south of the Metolius Springs, which merge to form the headwaters of the Metolius River. The Metolius River's basin sustains a wide array of plant life, large and small mammals, and more than 80 bird species.
Black Butte last erupted during the Pleistocene; geologists have estimated its age at 0.4, 0.5, and 1.43 ± 0.33 million years ago. The duration of the eruptions that built the volcano remains unclear, though the activity likely coincided with large-scale block faulting in the vicinity of the Metolius Springs. Black Butte has a prominent volcanic cone and is made up of mafic basaltic andesite lava. Despite having a well-preserved, symmetrical shape and an unexposed pyroclastic core, the butte has undergone moderate erosion, with shallow ravines, deep gullies on its sides, and rocks with weathering rinds. A number of cinder cones and a volcanic field also lie nearby the butte.
Source: Wikipedia.org
Copyright: Creative Commons 3.0
Jefferson, United States
Discover the most beautiful and popular trails in the area, carefully bundled into appropriate selections.
Source: Aselfcallednowhere
Copyright: Creative Commons 3.0
Discover the most beautiful and popular attractions in the area, carefully bundled in appropriate selections.
Source: Aselfcallednowhere
Copyright: Creative Commons 3.0
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