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Alligator Lake

Aerial photo of the Alligator Lake volcanic field
Elevation 2,217 m (7,274 ft)
Location Yukon, Canada
Coordinates 60°42′N 135°42′W / 60.7, -135.7
Type Volcanic field
Volcanic arc/belt Northern Cordilleran Volcanic Province
Age of rock Holocene
Last eruption Unknown

Alligator Lake is a group of basaltic cones and lava flows in south central Yukon. In topography a summit is a point on a surface which is higher in Elevation than all points immediately adjacent to Yukon (ˈjuːkɒn is the westernmost and smallest of Canada's three territories. A geographic coordinate system enables every location on the Earth to be specified in three coordinates using mainly a spherical coordinate system. Mountains can be characterized in several ways Some mountains are Volcanoes and can be characterized by the type of lava and eruptive history A volcanic field is a spot of the Earth 's crust that is prone to localized Volcanic activity A volcanic arc is a chain of volcanic islands or Mountains formed by Plate tectonics as an oceanic Tectonic plate subducts under A volcanic belt is a large volcanically active region Other terms are used for smaller areas of activity such as volcanic fields Volcanic belts are found above zones The Northern Cordilleran Volcanic Province (NCVP sometimes called the Stikine Volcanic Belt, is a group of Volcanoes and Volcanic fields located in the The geologic time scale is a chronologic schema (or idealized Model) relating Stratigraphy to time that is used by Geologists and other The Holocene is a Geological epoch which began approximately 10000 years ago (about 8000 BC Plate tectonics and hotspots Divergent plate boundaries At the Basalt (bəˈsɔːlt ˈbeisɔːlt ˈbæsɔːlt is a common Extrusive Volcanic rock. Lava is molten rock expelled by a Volcano during an eruption When first expelled from a volcanic vent it is a Liquid at Temperatures Yukon (ˈjuːkɒn is the westernmost and smallest of Canada's three territories. The upper part of the Alligator Lake volcanic complex consisting of two well-preserved cinder cones capping a small shield volcano probably post-dates local Holocene glaciation. A cinder cone or scoria cone is a steep conical Hill of volcanic fragments that accumulate around and downwind from a Volcanic vent. A shield volcano is a large Volcano with shallow-sloping sides The Holocene is a Geological epoch which began approximately 10000 years ago (about 8000 BC Lava flows from both cones traveled to the north and were erupted simultaneously. Their compositions range from alkali olivine basalt to basanitic. The Mineral olivine (when gem-quality also called Peridot) is a Magnesium Iron silicate with the formula ( Mg Basalt (bəˈsɔːlt ˈbeisɔːlt ˈbæsɔːlt is a common Extrusive Volcanic rock. Basanite (ˈbæsənaɪt is an igneous, volcanic ( Extrusive) rock with Aphanitic to Porphyritic texture Flows from the northeast cone are the largest extending 6 km from the cone and expanding to a width of 10 km at the terminus.

See also

References

Canada has examples of almost every type of Volcano found on Earth, including Stratovolcanoes Calderas Cinder cones See also List of volcanoes Western Canada is commonly thought to occupy a gap in the Pacific Ring of Fire, although that is not actually true
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