Emissions of Atmospheric Trace Compounds pp 269-303
Emissions from volcanoes
- Cite this paper as:
- Textor C., Graf HF., Timmreck C., Robock A. (2004) Emissions from volcanoes. In: Granier C., Artaxo P., Reeves C.E. (eds) Emissions of Atmospheric Trace Compounds. Advances in Global Change Research, vol 18. Springer, Dordrecht
Around 380 volcanoes were active during the last century, with around 50 volcanoes active per year (Andres and Kasgnoc, 1998). Volcanic activity is not randomly distributed over the Earth, but is linked to the active zones of plate tectonics, as shown in figure 1. More than 2/3 of the world’s volcanoes are located in the northern hemisphere, and in tropical regions. The emission of volcanic gases depends on the thermodynamic conditions (pressure, temperature) and on the magma type (i.e., its chemical composition, which in turn depends on the tectonic environment).
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