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Geochemistry of thermal water from selected wells, Boise, Idaho

January 1, 1989

Samples of thermal water from selected wells in the Boise area were analyzed for chemical composition; stable isotopes of hydrogen, oxygen, and dissolved carbon; radioactive carbon; and dissolved-gas concentrations. Chemically, the waters are virtually identical to those of the adjacent Idaho batholith. Isotopically, the thermal waters are more depleted in deuterium and oxygen-18 than coldwater springs in the presumed recharge area. Chemical and isotopic data indicate the presence of two separate geothermal systems. Radioactive carbon and dissolved helium concentrations are interpreted to indicate recharge during the Pleistocene. Hot water in or southeast of Boise probably recharged 20,000 to 30,000 years ago, and warm water 2.5 miles northwest of Boise probably recharged at least 15,000 years ago.

Citation Information

Publication Year 1989
Title Geochemistry of thermal water from selected wells, Boise, Idaho
Authors R.H. Mariner, H. W. Young, D. J. Parliman, William C. Evans
Publication Type Conference Paper
Publication Subtype Conference Paper
Series Title
Series Number
Index ID 70015097
Record Source USGS Publications Warehouse
USGS Organization