论文信息 - The rare-earth-element chemistry of allanite from the Grenville Province

The rare-earth-element chemistry of allanite from the Grenville Province

ABSTRACf The results of electron-microprobe analyses of 38 samples of allanite from granitic rocks and calcite veins in the Grenville province of southeastem Ontario'and southwestem Quebec are presented. Allanite from granitic rocks show a w.ider rang e o!ffn contentsthanttrosefromcarbonateveins.Thesamplesofallanitestudiedexhibitthecoupledsolid-solutionCa nZ* + IvP* as well as an omission solid-solution of the form 3Cazn =2REP* +n'

R. C. Peterson | D. B. MacFarlane

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