Palaeoproterozoic to Mesoproterozoic Geology of North Queensland
Palaeoproterozoic to Mesoproterozoic Geology of North Queensland
Palaeoproterozoic to Mesoproterozoic Geology of North Queensland
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<strong>Mesoproterozoic</strong> Grani<strong>to</strong>ids• Forest Home Supersuite –– biotite trondhjemite –– no magmatic zircon butxenocrysts with cores ~1650Ma• Migmatitic (nebulitic) grani<strong>to</strong>ids with abundant restite in the EinasleighMetamorphics – SHRIMP ages <strong>of</strong> ~1560Ma• Lighthouse Supersuite – irregular gneissic <strong>to</strong> pegmatitic leucogranite – U-Pbmulti-grain TIMS ages ~1560Ma• Forsayth Supersuite – locally deformed, peraluminous S-type granitesdominated by grey porphyritic muscovite-biotite granite – U-Pb multi-grainTIMS ages ~1550Ma• Esmeralda Supersuite – undeformed peraluminous S-type (or I-type graniteswith significant assimilation) granite intruding and comagmatic with theCroydon Volcanic Group
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