Geothermal gradients in the Missoula and Bitterroot Valleys, west-central Montana. Water-resources investigations (final)

Technical Report · Sat Nov 01 00:00:00 EST 1980

OSTI ID:5764332

Leonard, R B; Wood, W A

During 1978-79, seven test holes were drilled by Bendix Field Engineering Service under contract to the U.S. Department of Energy for the purpose of assessing the uranium content of lower Tertiary sedimentary rock in the Missoula and Bitterroot valleys of west-central Montana. Six of the holes were cased by the U.S. Geological Survey and Montana Bureau of Mines and Geology for hydraulic testing and measurement of geothermal gradients in the valley fill and one was abandoned. Hotter than normal temperatures or higher geothermal gradients in the test holes could reveal extensive reservoirs for hot water in the deep aquifers. The purpose of this report is to present and to analyze briefly the results of thermal logging of the holes.

• Research Organization: Geological Survey, Helena, MT (USA). Water Resources Div.
• OSTI ID: 5764332
• Report Number(s): PB-81-156234
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
MONTANA
GEOTHERMAL EXPLORATION
GEOTHERMAL GRADIENTS
AQUIFERS
BOREHOLES
DATA ANALYSIS
HOT WATER
SEDIMENTARY ROCKS
TEMPERATURE LOGGING
TEMPERATURE MEASUREMENT
THERMAL CONDUCTIVITY
URANIUM
ACTINIDES
CAVITIES
ELEMENTS
EXPLORATION
HYDROGEN COMPOUNDS
METALS
NORTH AMERICA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
ROCKS
ROCKY MOUNTAIN REGION
TEMPERATURE GRADIENTS
THERMODYNAMIC PROPERTIES
USA
WATER
WELL LOGGING
150301* - Geothermal Exploration & Exploration Technology- Geophysical Techniques & Surveys