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Vapor-dominated zones within hydrothermal systems: evolution and natural state

Journal of Geophysical Research

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Abstract

Three conceptual models illustrate the range of hydrothermal systems in which vapor-dominated conditions are found. The first model (model I) represents a system with an extensive near-vaporstatic vapor-dominated zone and limited liquid throughflow and is analogous to systems such as The Geysers, California. Models II and III represent systems with significant liquid throughflow and include steam-heated discharge features at higher elevations and high-chloride springs at lower elevations connected to and fed by a single circulation system at depth. In model II, as in model I, the vapor-dominated zone has a near-vaporstatic vertical pressure gradient and is generally underpressured with respect to local hydrostatic pressure. The vapor-dominated zone in model III is quite different, in that phase separation takes place at pressures close to local hydrostatic and the overall pressure gradient is near hydrostatic. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Vapor-dominated zones within hydrothermal systems: evolution and natural state
Series title:
Journal of Geophysical Research
Volume
93
Issue:
B11
Year Published:
1988
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article