AERORADIOACTIVITY SURVEY AND AREAL GEOLOGY OF THE HANFORD PLANT AREA, WASHINGTON AND OREGON (ARMS-I)

Technical Report · Wed Mar 01 04:00:00 EST 1961

OSTI ID:4806043

Schmidt, R G

An airborne gamma radioactivity survey of 9000 sq. miles in south- central Washington and north-central Oregon indicates a moderate range in the level of radioactivity and that the various levels are generally related to the geology of the region. Continuous radioactivity profiles were obtained with scintillation counting equipment at 500 ft above the ground on parallel north- south flight lines spaced 1 mile apart. Locally, the mountainous topography prevented operation of the aircraft on the planned flight lines, and in some of these areas a few substitute flights were possible along the valleys. A map of aeroradioactivity units was prepared from the profiles. Bedrock in the Hanford Plant area consists largely of basalt, a variety of unconsolidated lake- and stream-deposited strata, and loess. Changes in radioactivity level occur at the contact between geologic units at only a few places, however, because of the widespread redistribution of surficial material by wind action in the area. (auth)

• Research Organization: Geological Survey, Washington, D.C.; Division of Biology and Medicine, AEC
• NSA Number: NSA-16-023983
• OSTI ID: 4806043
• Report Number(s): CEX-59.4.11
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AIRCRAFT
DIAGRAMS
DISTRIBUTION
ENVIRONMENT
EROSION
GAMMA DETECTION
GAMMA RADIATION
GEOLOGY
GEOLOGY, MINERALOGY, AND METEOROLOGY
HAPO
MONITORING
OREGON
RADIOACTIVITY
ROCKS
SCINTILLATION COUNTERS
SOILS
WASHINGTON