vapor-dominated hydrothermal reservoir

vapor-dominated hydrothermal reservoir

[′vā·pər ¦dom·ə‚nād·əd ¦hī·drə¦thər·məl ′rez·əv‚wär]
(geology)
Any geothermal system mainly producing dry steam; the Geysers area of northern California and the Larderelle region of Italy are two examples.