Evaluation of dike-flow correlations indicated by geochemistry, Chief Joseph Swarm, Columbia River basalt

Technical Report · Thu Jun 01 04:00:00 EDT 1978

OSTI ID:5866832

Price, S M

A geochemical examination of dikes of a part of the Chief Joseph swarm, southeastern Washington-northeastern Oregon, and proximate Columbia River Basalt flows was conducted to evaluate the reliability of using comparative geochemistry to establish dike-flow correlations. An initial assessment of chemical variation, based on the major, minor, and selected trace element analyses of 48 dikes of the Grande Ronde River-Joseph Creek area (formerly known as the Grande Ronde swarm), revealed that although intradike chemical variation is minimal, interdike chemical variation is significant. Of the dikes surveyed, 32 are of Yakima chemical type, eight of Dodge chemical type, one of Roza chemical type, one of Umatilla chemical type, five of Pomona chemical type, and one of Lolo chemical type (chemical type nomenclature of Wright and others, 1973; Swanson and others, 1977).

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• DOE Contract Number: EY-77-C-06-1030
• OSTI ID: 5866832
• Report Number(s): RHO-SA-59
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580203* -- Geophysics-- Geophysical Survey Methods-- (1980-1989)
580400 -- Geochemistry-- (-1989)
BASALT
CHEMICAL COMPOSITION
COLUMBIA RIVER
FLOW MODELS
GEOCHEMICAL SURVEYS
IGNEOUS ROCKS
LAVA
MATHEMATICAL MODELS
NORTH AMERICA
PACIFIC NORTHWEST REGION
RIVERS
ROCKS
STREAMS
SURFACE WATERS
USA
VOLCANIC ROCKS
WASHINGTON