Changes

Magma contains dissolved [[gas]]es that are released into the atmosphere during eruptions called '''Volcanic gases'''. Gases are also released from magma that either remains below ground (for example, as an intrusion) or rises toward the surface. In such cases, gases may escape continuously into the atmosphere from the soil, [[volcanic vent]]s, [[fumarole]]s, and hydrothermal systems. The most common gas released by magma is steam (<math>H_2O</math>), followed by <math>CO_2</math> (carbon dioxide), <math>SO_2</math> (sulfur dioxide), (HCl) hydrogen chloride acid and other compounds.

Magma contains dissolved [[gas]]es that are released into the atmosphere during eruptions called '''Volcanic gases'''. Gases are also released from magma that either remains below ground (for example, as an intrusion) or rises toward the surface. In such cases, gases may escape continuously into the atmosphere from the soil, [[volcanic vent]]s, [[fumarole]]s, and hydrothermal systems. The most common gas released by magma is steam (<math>H_2O</math>), followed by <math>CO_2</math> (carbon dioxide), <math>SO_2</math> (sulfur dioxide), (HCl) hydrogen chloride acid and other compounds.

==Sources==  

==Sources==

[http://volcanoes.usgs.gov/Products/Pglossary/VolcGas.html USGS Photo Glossary]

[http://volcanoes.usgs.gov/Products/Pglossary/VolcGas.html USGS Photo Glossary]

[[Category:Volcanology]]

[[Category:Volcanology]]