- GLOSSARY OF VOLCANIC TERMS
The system comprising the rocks, fluids, vapors, and conduits associated with hydrothermal activity. In general, hydrothermal systems have the following components: 1) a shallow magma chamber or cooling intrusion (provides the heat for the system); 2) fluids which can be of magmatic, meteoric, or connate origin, that are heated by the intrusion and flow through the rocks adjacent to (or sometimes within) the heat source; 3) fractures or high permeability zones which allow transfer of fluids from one part of the system to another part of the system. In most cases, this transfer is believed to be the result of buoyancy contrasts between the colder and warmer fluids within the system.
Glossary of volcanic terms. - University of Wisconsin Oshkosh. G. J. Hudak. 2001.
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