Fig. 4
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BSE images of monazite grains from the VP7c paragneiss. Circles indicate the location of the LA-ICPMS pits (7 µm diameter) and their corresponding 206Pb/238U dates (2σ level). Only consistent dates in both the 208Pb/232Th–206Pb/238U and 206Pb/238U–207Pb/235U systems are shown. (a) Pristine monazite I included in garnet I; (b) open inclusion of monazite I in garnet I in contact with biotite (Bt); note the presence of small inclusions of xenotime (Xtm) in garnet I (see text); (c) pristine monazite I in a matrix of biotite (Bt)/phengite (Ph); (d) monazite I in plagioclase pseudomorph (ps Pl) showing irregular corroded rims; the reaction corona at the monazite-plagioclase interface is not observed in this sample; (e) and (f) pristine monazite I in a matrix of biotite (Bt)/phengite (Ph).
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