Hydrothermal alteration at the Roosevelt Hot Springs Thermal Area, Utah: modal mineralogy, and geochemistry of sericite, chlorite, and feldspar from altered rocks, Thermal Power Company well Utah State 14-2

Technical Report · Tue Oct 31 23:00:00 EST 1978

DOI:https://doi.org/10.2172/5754229· OSTI ID:5754229

Ballantyne, J M

Sericites, chlorites, feldspars, biotite and hornblende from hydrothermally altered rocks at several depths in Thermal Power Company well Utah State 14-2, Roosevelt Hot Springs Thermal Area, Utah, have been analyzed using the electron microprobe. Sericites and ferromagnesian minerals have been analyzed for 12 major elements, and feldspars for 3. The results have been used, along with whole rock chemical analyses, to computer calculate modal mineralogy for samples from the drillhole. Calculated modes for hydrothermal minerals are in reasonable agreement with observations from thin sections.

• Research Organization: Utah Univ., Salt Lake City (USA). Dept. of Geology and Geophysics
• OSTI ID: 5754229
• Report Number(s): IDO-78-1701.a.1.1.5
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150201* -- Geology & Hydrology of Geothermal Systems-- USA-- (-1989)
AMPHIBOLE
BIOTITE
BOREHOLES
CAVITIES
CHEMICAL COMPOSITION
CHLORITE MINERALS
DRILL CORES
FELDSPARS
Geothermal Legacy
HORNBLENDE
HYDROTHERMAL ALTERATION
KGRA
MICA
MINERALOGY
MINERALS
NORTH AMERICA
ROCKS
ROCKY MOUNTAIN REGION
ROOSEVELT HOT SPRINGS
USA
UTAH