Cinder Cone Volcano
A cinder cone or scoria cone is a steep conical hill of loose pyroclastic fragments, such as either volcanic clinkers, cinders, volcanic ash, or scoria that has been built around a volcanic vent. They consist of loose pyroclastic debris formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that often is symmetrical; with slopes between 30–40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit.
These are the classic, cone-shaped peaks we commonly associate with a lava-spewing eruption. Eruptions from cinder cones are pretty small potatoes, as far as volcanic eruptions go. They tend to be small, hill-sized volcanoes that range in height from tens to hundreds of meters high and they can build up over short periods of a few months to a few years. Cinder cones are characterized by their steeply angled sides and conical shapes. In fact, these mini-volcanoes are most often found on the flanks of larger, mountain-sized volcanic peaks.
Here are some examples of Cinder Cone Volcanoes;
1.Wizard Island is a volcanic cinder cone which forms an island at the west end of Crater Lake in Crater Lake National Park, Oregon. The top of the island reaches 6,933 feet above sea level, about 755 feet above the average surface of the lake.
Last eruption: 4600 BC
Elevation: 2,113 m
Prominence: 230 mLocation: Klamath County, Oregon, U.S.
Topo map: USGS Crater Lake West
Mountain range: Cascade Range
2.The Volcano, also known as Lava Fork volcano, is a small cinder cone in the Boundary Ranges of the Coast Mountains in northwestern British Columbia, Canada.
Last eruption: 1800
Elevation: 1,656 m
Volcanic arc/belt: Northern Cordilleran Volcanic Province
Province: British Columbia
Topo map: NTS 104B/07
Mountain range: Coast Mountains, Boundary Ranges
3.Coffee Crater is a well-preserved cinder cone south of Mount Edziza, British Columbia, Canada. It was formed during the Holocene period. It is within the Snowshoe lava field which in turn form part of the Mount Edziza volcanic complex.
Elevation: 2,000 m
Prominence: 130 m
Province: British Columbia
Last eruption: HoloceneParent range: Tahltan Highland
Mountain range: Pacific Coast Ranges, Tahltan Highland
4.Vulcan's Throne is a cinder cone volcano and a prominent landmark on the North Rim of the Grand Canyon in Arizona, United States. Vulcan's Throne, about a mile west of Toroweap overlook, is part of the Uinkaret volcanic field.
Elevation: 1,555 m
Prominence: 180 m
Volcanic field: Uinkaret volcanic field
Topo map: USGS Vulcans Throne
Age of rock: 73,000 years
5.Opal Cone is a cinder cone located on the southeast flank of Mount Garibaldi in the Coast Mountains of British Columbia, Canada. It is the source of a 15 km long broad dacite lava flow with prominent wrinkled ridges.
Elevation: 1,736 m
Last eruption: 7351 BC
Prominence: 86 m
Volcanic arc/belt: Canadian Cascade Arc Garibaldi Volcanic Belt
Province: British Columbia
Mountain range: Garibaldi Ranges
References:
https://en.wikipedia.org/wiki/Cinder_cone
http://www.extremescience.com/cinder-cones.htm