Preliminary geothermal investigations at Manley Hot Springs, Alaska
Manley Hot Springs is one of several hot springs which form a belt extending from the Seward Peninsula to east-central Alaska. All of the hot springs are low-temperature, water-dominated geothermal systems, having formed as the result of circulation of meteoric water along deepseated fractures near or within granitic intrusives. Shallow, thermally disturbed ground at Manley Hot Springs constitutes an area of 1.2 km by 0.6 km along the lower slopes of Bean Ridge on the north side of the Tanana Valley. This area includes 32 springs and seeps and one warm (29.1/sup 0/C) well. The hottest springs range in temperature from 61/sup 0/ to 47/sup 0/C and are presently utilized for space heating and irrigation. This study was designed to characterize the geothermal system present at Manley Hot Springs and delineate likely sites for geothermal drilling. Several surveys were conducted over a grid system which included shallow ground temperature, helium soil gas, mercury soil and resistivity surveys. In addition, a reconnaissance ground temperature survey and water chemistry sampling program was undertaken. The preliminary results, including some preliminary water chemistry, show that shallow hydrothermal activity can be delineated by many of the surveys. Three localities are targeted as likely geothermal well sites, and a model is proposed for the geothermal system at Manley Hot Springs.
- Research Organization:
- Alaska Univ., Fairbanks (USA). Geophysical Inst.
- DOE Contract Number:
- FC07-79ET27034
- OSTI ID:
- 7141762
- Report Number(s):
- DOE/ET/27034-T1; UAG-R-290; ON: DE82020604
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
15 GEOTHERMAL ENERGY
150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
150302 -- Geothermal Exploration & Exploration Technology-- Geochemical Techniques & Surveys
ALASKA
CHEMISTRY
ELECTRICAL SURVEYS
ELEMENTS
ENERGY SYSTEMS
EXPLORATION
FEDERAL REGION X
FLUIDS
GASES
GEOCHEMICAL SURVEYS
GEOLOGY
GEOPHYSICAL SURVEYS
GEOTHERMAL EXPLORATION
GEOTHERMAL SYSTEMS
GEOTHERMOMETRY
Geothermal Legacy
HELIUM
HOT SPRINGS
HYDROTHERMAL SYSTEMS
MERCURY
METALS
NONMETALS
NORTH AMERICA
RARE GASES
RESISTIVITY SURVEYS
SAMPLING
SOILS
SURVEYS
TEMPERATURE SURVEYS
THERMAL SPRINGS
USA
WATER CHEMISTRY
WATER SPRINGS
150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
150302 -- Geothermal Exploration & Exploration Technology-- Geochemical Techniques & Surveys
ALASKA
CHEMISTRY
ELECTRICAL SURVEYS
ELEMENTS
ENERGY SYSTEMS
EXPLORATION
FEDERAL REGION X
FLUIDS
GASES
GEOCHEMICAL SURVEYS
GEOLOGY
GEOPHYSICAL SURVEYS
GEOTHERMAL EXPLORATION
GEOTHERMAL SYSTEMS
GEOTHERMOMETRY
Geothermal Legacy
HELIUM
HOT SPRINGS
HYDROTHERMAL SYSTEMS
MERCURY
METALS
NONMETALS
NORTH AMERICA
RARE GASES
RESISTIVITY SURVEYS
SAMPLING
SOILS
SURVEYS
TEMPERATURE SURVEYS
THERMAL SPRINGS
USA
WATER CHEMISTRY
WATER SPRINGS