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Quartz-pebble conglomerate and quartzite at Eranondoo Hill in the Jack Hills belt in the northwestern Yilgarn Craton, Australia, contain monazite and xenotime grains in heavy mineral layers. In situ SHRIMP U–Th–Pb geochronology of detrital monazite and xenotime, as well as monazite and xenotime inclusions in detrital quartz, gives ages between 3.3 and 3.1Ga. The conglomerates, which host abundant...
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