title: Geothermal Brine Well: Mile-Deep Drill Hole May Tap Ore-Bearing Magmatic Water and Rocks Undergoing Metamorphism.
abstract: A deep geothermal well in California has tapped a very saline brine extraordinarily high in heavy metals and other rare elements; copper and silver are precipitated during brine production. Preliminary evidence suggests that the brine may be pure magmatic water and an active ore-forming solution. Metamorphism of relatively young rocks may also be occurring within accessible depths.
authors.forename: D E
authors.initials: DE
authors.lastname: White
authors.forename: E T
authors.initials: ET
authors.lastname: Anderson
authors.forename: D K
authors.initials: DK
authors.lastname: Grubbs