Table 8. Dissolved constituents and mineral and gas phases used to model geochemical reactions assuming initial waters from Cave Springs prior to reconstruction of water-collection system and Marmot Spring, and final water from Cave Springs after reconstruction, Great Basin National Park, Nevada.

[Dissolved constituents used in inverse model calculations: Concentration of dissolved oxygen was used for the Redox state. Dissolved strontium concentration, delta carbon-13, and strontium-87 to strontium-86 ratio for Cave Springs sample collected in July 1987 prior to reconstruction of water collection system were assumed equal to values from spring near upper Lehman Creek campground. The concentration of dissolved oxygen, however, was assumed to be the same as that from Marmot Spring. Mineral and gas phases: Mineral and gas phases allowed to interact with the initial water to produce water discharging from Cave Springs in September 2007]

Dissolved constituents used in inverse model calculations	Mineral and gas phases
Aluminum	Anorthite [Ca0.995Sr0.005AL2Si2O8]
Calcium	Calcite [CaCO3]
Carbon	Carbon dioxide gas [CO2]
Chloride	Chalcedony [SiO2]
Delta carbon-13	Dolomite [CaMg(CO3)2]
Magnesium	Goethite [HFeO2]
Redox	Hydrogen sulfide gas [H2S]
Silica	Iron sulfide [FeS]
Sodium	Kaolinite [Al4Si4O10(OH)8]
Strontium	Sodium chloride [NaCl]
Strontium-87 to strontium-86 ratio	Soil organic matter [CH2O]
Sulfur	Strontianite [SrCO3]