Appendix B.  Tmrec  Mineral compositions from electron microprobe analyses
Unit Mineral Chemical composition
Tmrec oligoclase Ab71An23Or6
Tmrec anorthoclase Ab58An5Or37
Tmrec oligoclase Ab73An22Or5
Tmrec oligoclase Ab74An19Or7
Tmrec anorthoclase Ab50An3Or47
Tmrec magnetite (Fe2+1.27Mg0.04Fe3+1.35Al0.03Ti0.31)O4
Tmrec amphibole hornblende
Tmrec amphibole hornblende