Volcanism

This is an image of the eruption of Stromboli volcano. Click on image for full size version (128K GIF) Image from: Dr. J. Alean, Eglisau, Switzerland For more information, images and video about Stromboli volcano see Stromboli On-Line.

Volcanism is part of the process of bringing material up from the deep interior of a planet and spilling it forth on the surface. Eruptions also deliver fresh gases to the surface from the melted material below. Volcanism is part of the process by which a planet cools off. Even though they are not volcanos, geysers and hot springs are also part of the volcanic process, involving water and hydrothermal activity. Some planetary bodies, like Jupiter's moon Europa also exhibit icy volcanism where water takes the place of lava.

There are several ways in which a volcano forms, just as there are several different kinds of volcanoes. On Earth, the most general cause of volcanism is caused by lithospheric subduction.

There are quite a few other planets which have volcanoes on the surface, including Venus, Mars, and Jupiter's moon Io. Other planets exhibit the results of volcanic activity. These include Mercury, the Earth's Moon, Jupiter's moon Europa, and perhaps Neptune's moon Triton.

This is an image of the eruption of Stromboli volcano. Click on image for full size version (128K GIF) Image from: Dr. J. Alean, Eglisau, Switzerland For more information, images and video about Stromboli volcano see Stromboli On-Line.

Volcanism is part of the process of bringing material from the deep interior of a planet and spilling it forth on the surface. Eruptions also eject new molecules into the atmosphere. Volcanism is part of the process by which a planet cools off. Even though they are not volcanoes, geysers and hot springs are also part of the volcanic process, involving water and hydrothermal activity. Some planetary bodies, like Jupiter's moon Europa, exhibit icy volcanism, which is another form of volcanism involving water.

There are several ways in which a volcano forms, just as there are several different kinds of volcanoes. On Earth, the most general cause of volcanism is caused by subduction of the Earth's crust.

There are quite a few other planets which have volcanoes on the surface, including Venus, Mars, and Jupiter's moon Io. Other planets exhibit the results of volcanic activity. These include Mercury, the Earth's Moon, Jupiter's moon Europa, and perhaps Neptune's moon Triton.

This is an image of the eruption of Stromboli volcano. Click on image for full size version (128K GIF) Image from: Dr. J. Alean, Eglisau, Switzerland For more information, images and video about Stromboli volcano see Stromboli On-Line.

Volcanoes bring material from the deep interior of a planet and spilling it onto the surface. Eruptions of volcanoes also put new molecules into the atmosphere. Volcanism is part of the process by which a planet cools off.

Even though they are not volcanoes, geysers are also part of the volcanic process, involving water.

There are several ways in which a volcano forms, just as there are several different kinds of volcanoes.

There are quite a few other planets which have volcanoes on the surface, including Venus, Mars, and Jupiter's moon Io. Other planets seem to have had volcanic activity in the past. These include Mercury, the Earth's Moon, Jupiter's moon Europa, and perhaps Neptune's moon Triton.