{
  "date" : "1981-03-01",
  "identifier_doecontract" : "",
  "subject" : "15 GEOTHERMAL ENERGY; GEOTHERMAL FLUIDS; WATER CHEMISTRY; MINERALS; SOLUBILITY; STABILITY; CARBON DIOXIDE; EQUILIBRIUM; EXPERIMENTAL DATA; FELDSPARS; GEOTHERMAL SYSTEMS; THERMODYNAMICS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DATA; FLUIDS; INFORMATION; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; 150302* - Geothermal Exploration & Exploration Technology- Geochemical Techniques & Surveys",
  "description" : "The dominant reaction determining the chemistry of fluids in a geothermal system of the New Zealand type consists of the conversion of primary plagioclase by CO/sub 2/ to calcite and clays with log P/sub CO/sub 2// = 15.26 - 7850/(t + 273.2), temperature t in /sup 0/C. Subsequent reactions involving secondary minerals control relative CO/sub 2/-H/sub 2/S-contents. The distribution of mineral phases throughout a geothermal system reflects the stepwise conversion of thermodynamically unstable primary phases through a series of intermediate, metastable phases to a thermodynamically stable, secondary assemblage. The relative stabilities of these phases was evaluated on the basis of their solubilities, the least soluble aluminium-silicate representing the thermodynamically most stable phase under a given set of conditions. Observed assemblages of secondary minerals in geothermal systems represent indicators allowing mineral/fluid-interaction conditions to be evaluated on the basis of multi-component mineral stability diagrams.",
  "language" : "English",
  "identifier_report" : "",
  "publisher_sponsor" : "",
  "publisher_country" : "United Kingdom",
  "source" : "TIC; EDB-81-038249",
  "purl" : "",
  "title" : "Geothermal mineral equilibria",
  "type" : "Journal Article",
  "subject_related" : "",
  "relation" : "Journal Name: Geochim. Cosmochim. Acta; (United Kingdom); Journal Volume: 45:3",
  "entry_date" : "2010-12-30",
  "subject_list" : [ "15 GEOTHERMAL ENERGY", "GEOTHERMAL FLUIDS", "WATER CHEMISTRY", "MINERALS", "SOLUBILITY", "STABILITY", "CARBON DIOXIDE", "EQUILIBRIUM", "EXPERIMENTAL DATA", "FELDSPARS", "GEOTHERMAL SYSTEMS", "THERMODYNAMICS", "CARBON COMPOUNDS", "CARBON OXIDES", "CHALCOGENIDES", "DATA", "FLUIDS", "INFORMATION", "NUMERICAL DATA", "OXIDES", "OXYGEN COMPOUNDS", "150302* - Geothermal Exploration & Exploration Technology- Geochemical Techniques & Surveys" ],
  "publisher_availability" : "",
  "rights" : "",
  "announced_date" : "1981-04-01",
  "type_qualifier" : "",
  "has_fulltext" : false,
  "coverage" : "",
  "identifier" : "",
  "journal_volume" : "45:3",
  "creator" : "Giggenbach, W F",
  "site_ownership_code" : "TIC",
  "osti_id" : "6658242",
  "journal_issue" : "",
  "resource_type" : "JOUR",
  "format" : "Medium: X; Size: Pages: 393-410",
  "journal_name" : [ ],
  "contributing_organizations" : "",
  "citation_location" : "https://www.osti.gov/etdeweb/biblio/6658242",
  "publication_year" : 1981,
  "subject_list_commas" : "15 GEOTHERMAL ENERGY, GEOTHERMAL FLUIDS, WATER CHEMISTRY, MINERALS, SOLUBILITY, STABILITY, CARBON DIOXIDE, EQUILIBRIUM, EXPERIMENTAL DATA, FELDSPARS, GEOTHERMAL SYSTEMS, THERMODYNAMICS, CARBON COMPOUNDS, CARBON OXIDES, CHALCOGENIDES, DATA, FLUIDS, INFORMATION, NUMERICAL DATA, OXIDES, OXYGEN COMPOUNDS, 150302* - Geothermal Exploration & Exploration Technology- Geochemical Techniques & Surveys",
  "publisher" : "",
  "identifier_other" : "Journal ID: CODEN: GCACA",
  "publisher_research" : "Dept. of Scientific and Industrial Research, Petone, New Zealand",
  "creators_list" : [ "Giggenbach, W F" ],
  "doi" : "https://doi.org/10.1016/0016-7037(81)90248-9"
}