delta. sup 18 O values, sup 87 Sr/ sup 86 Sr and Sr/Mg ratios of Late Devonian abiotic marine calcite: Implications for the composition of ancient seawater

Late Devonian (Frasnian) abiotic marine calcite has been microsampled and analyzed for {sup 87}Sr/{sup 86}Sr ratios, {delta}{sup 18}O and {delta}{sup 13}C values, and minor element concentrations. Portions of marine cement crystals from the Alberta and Canning Basins have escaped diagenetic alterati...

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Veröffentlicht in:	Geochimica et cosmochimica acta 1991-07, Vol.55:7
Hauptverfasser:	Carpenter, S.J., Lohmann, K.C., Walter, L.M., Huston, J.G., Halliday, A.N., Holden, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	580000 - Geosciences ALBERTA ALKALINE EARTH ISOTOPES ALKALINE EARTH METALS BETA DECAY RADIOISOTOPES BUILDING MATERIALS CALCITE CANADA CARBONATE MINERALS CARBONATE ROCKS CEMENTS CHEMICAL COMPOSITION CHEMISTRY COMPARATIVE EVALUATIONS DEVELOPED COUNTRIES DEVONIAN PERIOD DIAGENESIS ELECTRON CAPTURE RADIOISOTOPES ELEMENTS EVALUATION EVEN-EVEN NUCLEI EVEN-ODD NUCLEI GEOCHEMISTRY GEOLOGIC AGES GEOLOGIC FORMATIONS GEOLOGIC HISTORY GEOLOGIC STRUCTURES GEOSCIENCES HOURS LIVING RADIOISOTOPES HYDROGEN COMPOUNDS INTERMEDIATE MASS NUCLEI ISOMERIC TRANSITION ISOTOPES ISOTOPE RATIO ISOTOPES LIMESTONE MAGNESIUM MATERIALS METALS MINERALS NORTH AMERICA NUCLEI OXYGEN COMPOUNDS PALEOZOIC ERA PRECIPITATION RADIOISOTOPES ROCKS SEAWATER SEDIMENTARY BASINS SEDIMENTARY ROCKS SEPARATION PROCESSES STABLE ISOTOPES STRONTIUM STRONTIUM 86 STRONTIUM 87 STRONTIUM ISOTOPES WATER
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