What are Subglacial volcanoes?

Answer 1

A subglacial volcano is a volcanic form produced by eruptions beneath a glacier or beneath the surface of a lake within a glacier. Today they are most common in Iceland and Antarctica; older formations of this type are found also in parts of Canada. Their shape tends to be characteristic and unusual, with flat top and steep sides. If the heat produced by the volcano is high enough to melt through the ice layer, however, the volcano assumes a more conventional shape.

Answer 2

subglacial volcano
A subglacial volcano is a volcanic form produced by eruptions beneath a glacier or beneath the surface of a lake within a glacier. Today they are most common in Iceland and Antarctica; older formations of this type are found also in parts of Canada. Their shape tends to be characteristic and unusual, with flat top and steep sides. If the heat produced by the volcano is high enough to melt through the ice layer, however, the volcano assumes a more conventional shape.

During the eruption, the heat of the lava flow from the subglacial volcano melts the overlying ice. The water quickly cools the lava, resulting in pillow shapes similar to those of underwater volcanoes. When the pillows break off and roll down the volcano slopes, pillow breccia, tuff breccia and hyaloclastite form.

The flat-topped shapes of the subglacial volcanoes are called tuyas, after Tuya Butte from northern British Columbia, the subglacial volcano Dr. Matthews first studied. In Iceland, such volcanoes are known as table mountains.

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Answer 3

A subglacial volcano is a volcanic form produced by eruptions beneath a glacier or beneath the surface of a lake within a glacier. Today they are most common in Iceland and Antarctica; older formations of this type are found also in parts of Canada. Their shape tends to be characteristic and unusual, with flat top and steep sides. If the heat produced by the volcano is high enough to melt through the ice layer, however, the volcano assumes a more conventional shape.

During the eruption, the heat of the lava flow from the subglacial volcano melts the overlying ice. The water quickly cools the lava, resulting in pillow shapes similar to those of underwater volcanoes. When the pillows break off and roll down the volcano slopes, pillow breccia, tuff breccia and hyaloclastite form.

The flat-topped shapes of the subglacial volcanoes are called tuyas, after Tuya Butte from northern British Columbia, the subglacial volcano Dr. Matthews first studied. In Iceland, such volcanoes are known as table mountains.

Answer 4

A subglacial volcano is a volcanic form produced by eruptions beneath a glacier or beneath the surface of a lake within a glacier. Today they are most common in Iceland and Antarctica; older formations of this type are found also in parts of Canada. Their shape tends to be characteristic and unusual, with flat top and steep sides. If the heat produced by the volcano is high enough to melt through the ice layer, however, the volcano assumes a more conventional shape.

Answer 5

Subglacial volcanic eruptions are often associated with outbursts of water that create a variety of distinctive geological features. On Mars, such outbursts of liquid water could carry microbes and their byproducts to the surface where they could be incorporated into ground ice and preserved. Such deposits could be easily accessed by rovers in upcoming missions.
such as on mars and other planets