Evaluation of heat flow and its geological implications on Mt. St. Helens

Journal Article · Thu Apr 01 00:00:00 EST 1982 · Geophys. Res. Lett.; (United States)

DOI:https://doi.org/10.1029/GL009i004p00377· OSTI ID:5047196

Grady, T; Adams, E; Brown, R L; Sato, A

A study to determine the heat flux pattern in the vicinity of Mt. St. Helens was undertaken as part of a program to evaluate the effects of the eruption on future snowpack conditions in the area. Subsurface temperature and low energy refraction seismic studies were made during the early spring in 1981 to determine both the heat flux in the area of pyroclastic deposition and its potential source. In addition, samples were collected for later laboratory determination of thermal conductivity and diffusivity. Results indicate that the heat flow values in the area of pyroclastic deposition are as large as forty times greater than the heat flow values measured on Mt. Adams and Mt. Hood during the same period. The highest heat flow values appear to coincide with a pumice flow unit on the north side of the mountain.. Comparison with work done on the eruption of Mt. Komagatake indicates that the large heat flow values continue for several years.

• Research Organization: Graduate Student, Montana State University, Bozeman, MT 59717
• OSTI ID: 5047196
• Journal Information: Geophys. Res. Lett.; (United States), Vol. 9:4
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
VOLCANOES
HEAT FLUX
ERUPTION
GEOTHERMAL GRADIENTS
MT ST HELENS
SEISMOLOGY
THERMAL CONDUCTIVITY
THERMAL DIFFUSIVITY
VOLCANIC ROCKS
CASCADE MOUNTAINS
FEDERAL REGION X
IGNEOUS ROCKS
MOUNTAINS
NORTH AMERICA
PHYSICAL PROPERTIES
ROCKS
TEMPERATURE GRADIENTS
THERMODYNAMIC PROPERTIES
USA
WASHINGTON
580202* - Geophysics- Volcanology- (1980-1989)