Gedamsa Caldera
| Gedamsa Caldera | |
|---|---|
 the Gedamsa Caldera lies east of Lake Koka and SW of a Sugar farm | |
| Highest point | |
| Elevation | 1,984 m (6,509 ft) [1] |
| Coordinates | 8°21′00″N 39°10′48″E / 8.350°N 39.180°ECoordinates: 8°21′00″N 39°10′48″E / 8.350°N 39.180°E [1] |
| Geography | |
  Gedamsa Caldera Ethiopian Rift Valley, | |
| Geology | |
| Mountain type | Caldera |
| Last eruption | Holocene[1] |
The Gedamsa Caldera is a 7 x 9 km caldera in the Main Ethiopian Rift valley. The caldera has steep sides with 100–200 metres (328–656 ft) high walls, the upper parts of which consist predominantly of rhyolitic lava flows deposited in a series of trachite ignimbrite eruptions. There are small basaltic spatter cones and fumarolic activity inside the caldera floor along with a series of (Late Pleistocene to Holocene) rhyolite and pumice deposits and a Holocene lava dome/flow.[1]
References
- 1 2 3 4 "Gedamsa Caldera". Global Volcanism Program. Smithsonian Institution. Retrieved 2013-07-13.
This article is issued from Wikipedia - version of the 4/15/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.