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Author McDougall, I. ♦ Adams, J. A. S. ♦ Heier, K. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword GEOLOGY AND MINERALOGY ♦ ALUMINUM SILICATES ♦ DISTRIBUTION ♦ ENRICHMENT ♦ HAWAII ♦ IGNEOUS ROCKS ♦ LAVA ♦ POTASSIUM ♦ QUANTITATIVE ANALYSIS ♦ ROCKS ♦ SODIUM SILICATES ♦ TABLES ♦ THOLEITES ♦ THORIUM ♦ URANIUM
Abstract The contents of K, Th, and U in basaltic lavas in Hawaii were determined. The results show a strong coherence between Th, U, and K exists in most rock types. The concentrations increase with petrogenic evolution, and the relative enrichment is Th> U> K. Some indication exists for a temporal distribution pattern of Th and U relative to K. The similar (and specific) Th/K and U/K ratios of nepheline basalt and tholeiites on Kauai indicate a derivation from a common source possessing this characteristic ratio rather than a derivation by magmatic differentiation. Data are tabulated. (P.C.H.)
Educational Use Research
Learning Resource Type Article
Publisher Date 1964-01-18
Publisher Department Australian National Univ., Canberra
Journal Nature
Volume Number 201
Organization Australian National Univ., Canberra


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