As mentioned above this is the fine grained facies that intruded the older coarser grained rock. Sample LH-15 was taken from this facies. Even though the rock is more fine grained than surrounding facies it still has a phaneritic texture. The facies is a biotite-muscovite granite (Speer et al. 1980). Our hand sample from this location shows an inequigranular hypidiomorphic texture. Black grains of biotite and white grains of plagioclase are dominant in the hand sample. We also see signs of myrmekite forming within this facies. Since this facies consists of considerably smaller grains than the surrounding units it is safe to assume the magma that formed this facies rose to the surface at a faster pace which did not allow the crystals to grow as large as the rest of the
As mentioned above this is the fine grained facies that intruded the older coarser grained rock. Sample LH-15 was taken from this facies. Even though the rock is more fine grained than surrounding facies it still has a phaneritic texture. The facies is a biotite-muscovite granite (Speer et al. 1980). Our hand sample from this location shows an inequigranular hypidiomorphic texture. Black grains of biotite and white grains of plagioclase are dominant in the hand sample. We also see signs of myrmekite forming within this facies. Since this facies consists of considerably smaller grains than the surrounding units it is safe to assume the magma that formed this facies rose to the surface at a faster pace which did not allow the crystals to grow as large as the rest of the