Broken Top
From Wikipedia, the free encyclopedia
| Broken Top | |
|---|---|
 |
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| Elevation | 9,175 feet (2,797 m) |
| Location | Oregon, USA |
| Range | Cascade Volcanic Arc, Cascades |
| Coordinates | |
| Topo map | USGS Broken Top |
| Type | Stratovolcano |
| Age of rock | Pleistocene |
Broken Top is an stratovolcano highly eroded by glaciation. It is located south of the Three Sisters group of volcanoes in the Cascade Range of central Oregon. Broken Top is about 20 miles (32 km) west of Bend, Oregon in Deschutes County.
[edit] Geology
Pleistocene eruptions originally created a broad shield of basaltic andesite. Intermittently, more silicic magma was erupted, ranging from andesite to dacite to rhyodacite. Intrusive dikes and pyroclastic flow deposits can also be found in the layers of Broken Top's flanks. Ice Age glaciers have carved into the volcano on three sides, exposing its internal structure.
[edit] See also
[edit] External links
- Broken Top at Summitpost.org
- Broken Top at Peakbagger.com
- CVO Menu - Broken Top
- Maps and aerial photos
- WikiSatellite view at WikiMapia
- Topographic map from TopoZone
- Aerial image from TerraServer-USA
- Surrounding area map from Google Maps
- Location in the United States from the Census Bureau
