LATTICE PREFERRED ORIENTATION OF QUARTZ INCLUSIONS WITHIN GARNET PORPHYROBLASTS FROM THE IMJINGANG BELT, SOUTH KOREA

Abstract

Quartz inclusions within intertectonic garnet porphyroblasts of metapelites from the southern Imjingang belt have a lattice preferred orientation. c-Axis fabrics of the quartz inclusions tend to show a single girdle pattern at a high angle to an earlier foliation together with a submaximum subparallel to an earlier lineation. This lattice preferred orientation of the quartz inclusions might result from intracrystalline deformation together with solution creep prior to the garnet growth or from selective entrapment of quartz grains with a specific lattice orientation during the garnet growth.