Browsing ELibrary by Subject "U/PB"
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Browsing ELibrary by Subject "U/PB"
Now showing items 1-5 of 5
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(1996)In spite of the major importance of monazite as a repository for the rare earths and Th in the continental crust, for U-Th-Pb geochronology, and as a possible form for high-level nuclear waste, very little work has been ...
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(2000)We show that 206Pb/238U ratios measured in baddeleyite by ion microprobe vary significantly (up to +/-10% or more) and systematically with the relative orientation of the baddeleyite crystal structure and the primary ion ...
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(1999)We report here direct ion microprobe dating of fossil tooth (dentine) of a Permian fresh-water shark, Orthacanthus senckenbergianus using the SHRIMP instrument recently installed at Hiroshima University. Fifteen spots on ...
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(1996)The occurrence of inherited radiogenic Pb components in 35 Ma old magmatic titanite is reported here for the first time. The about 810 Ma age of the inherited components is identical to that contained in zircon from the ...
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THE ISOTOPIC COMPOSITION OF ZIRCON AND GARNET: A RECORD OF THE METAMORPHIC HISTORY OF NAXOS, GREECE (2006)Growth of zircon with respect to that of garnet has been studied using a combination of petrography, U-Pb dating and oxygen isotope analysis. The aim is to document the mechanism and pressure-temperature conditions of ...
Now showing items 1-5 of 5