Phase Distributions of the Rare-earth Elements in Sediments |
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23 pages matching Values in Parts-per-million in this book
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Contents
Among the Sediment RE Patterns | 3 |
The RE Contents of the North American Shales Compos ite and the Average of the RE Contents of 20 Chondrites in Partspermillion | 6 |
Chemical Composition of Average Rocks | 24 |
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Common terms and phrases
abundances accounted acid amount analysis analyzed appear average biotite calcite Carbonate Fraction chemical Chondrites clay Coaledo Formation Graywacke common compared comparison plot complexes composite concentration contain depletion Determination distribution earths elements enrichment error examination feldspar grains greater Hand-picked Haskin heavy liquid heavy mineral heavy mineral fraction hematite identified Including indicated individual insoluble residue known lanthanides limestone lower marine material matter mesh fraction mineral fractions mineral phase NASC observed obtained Oneota Dolomite organic origin Parts-per-million pattern Peter Sandstone plant possible precipitation present probably Pure Quartz Fraction quartz fraction quartz-feldspar fraction range rare rare-earth ratio relative sample sand sedimentary rocks sediments separation shales showed shown similar Spirn standard strong Sunset Point Sandstone Table Total Amt total RE content University of Wisconsin values Weight Weight g whole rock x-ray