leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 6 53 B 1 1 12.68 12.70 BULK QUARTZ 21.1 6 53 B 1 1 12.68 12.70 BULK PLAGIOCLASE 28.1 6 53 B 1 1 12.68 12.70 BULK MICA 39.8 6 53 B 1 1 13.62 13.64 BULK QUARTZ 8.7 6 53 B 1 1 13.87 13.89 BULK QUARTZ 14.9 6 53 B 1 2 14.13 14.15 BULK CALCITE 55.9 6 53 B 1 2 14.13 14.15 BULK QUARTZ 6.1 6 53 B 1 2 14.78 14.80 BULK QUARTZ 12.1 6 53 B 1 3 15.69 15.71 BULK QUARTZ 13.2 6 53 B 1 3 16.30 16.32 BULK QUARTZ 16.0 6 53 B 1 4 17.04 17.06 BULK QUARTZ 9.9 6 53 B 1 4 17.70 17.72 BULK CALCITE 14.8 6 53 B 1 4 17.70 17.72 BULK QUARTZ 8.2 6 53 B 1 5 19.20 19.22 BULK CALCITE 9.1