|Name||Porphyritic (alkalic feldspar) biotite granite|
|Geologic age||Late Ordovician|
Igneous > Plutonic > Granitic > Granite (Pluton)Porphyritic (alkalic feldspar) biotite granite.
|Comments||Part of the Oliverian Plutonic Suite (Late Ordovician) - Pink, weakly to moderately foliated, locally porphyritic biotite granitoids found in mantled gneiss domes. Mafic varieties contain hornblends. Variably metamorphosed up to amphibolite facies.|
|Counties||Coos - Grafton|