Preliminary chemical studies of thermal waters in Lassen Volcanic National Park and vicinity

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · Trans. - Geotherm. Resour. Counc.; (United States)

OSTI ID:5053090

Michael, T J

Most thermal waters in Lassen Volcanic National Park (LVNP) issue as acidic, low Cl hot springs, which are characteristic of vapordominated hydrothermal systems and cannot be used for liquid-chemical geothermometry. Waters from the neutral pH, low Cl hot springs at Drakesbad and in Little Hot Springs Valley may have equilibrated in shallow aquifers, and so both Na-K-Ca and Na-Li geothermometers approach the measured spring temperatures. The high Cl waters at Growler Hot Spring and Morgan Hot Springs, situated south of LVNP, are the most appropriate for liquid-chemical geothermometry and indicate subsurface temperatures between 230/sup 0/ and 240/sup 0/C. These springs may arise either from boiling at depth and subsequent mixing with meteoric water or from conductive cooling during lateral flow. In either case, the about230/sup 0/ to 240/sup 0/C thermal water probably originated inside the park and flowed southward to Morgan Hot Springs.

• Research Organization: U.S. Geological Survey, Menlo Park, California
• OSTI ID: 5053090
• Journal Information: Trans. - Geotherm. Resour. Counc.; (United States), Journal Name: Trans. - Geotherm. Resour. Counc.; (United States) Vol. 6; ISSN TGRCD
• Country of Publication: United States
• Language: English

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15 GEOTHERMAL ENERGY
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