Fluid inclusion gas compositions from an active magmatic–hydrothermal system: a case study of The Geysers geothermal field, USA

@inproceedings{Moore2001FluidIG,
  title={Fluid inclusion gas compositions from an active magmatic–hydrothermal system: a case study of The Geysers geothermal field, USA},
  author={Jonathan Norman Moore and David I. Norman and Barbara M. Kennedy},
  year={2001}
}
Abstract Hydrothermal alteration and the active vapor-dominated geothermal system at The Geysers, CA are related to a composite hypabyssal granitic pluton emplaced beneath the field 1.1 to 1.2 million years ago. Deep drill holes provide a complete transect across the thermal system and samples of the modern-day steam. The hydrothermal system was liquid-dominated prior to formation of the modern vapor-dominated regime at 0.25 to 0.28 Ma. Maximum temperatures and salinities ranged from 440°C and… CONTINUE READING
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