leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 8 71 1 0.40 6.30 BULK CALCITE 93.2 8 71 1 0.40 6.30 BULK QUARTZ 1.6 8 71 2 11.50 17.20 BULK CALCITE 97.4 8 71 2 11.50 17.20 BULK QUARTZ 1.6 8 71 3 23.00 25.00 BULK CALCITE 94.0 8 71 3 23.00 25.00 BULK QUARTZ 2.1 8 71 3 23.00 25.00 BULK PLAGIOCLASE 1.5 8 71 4 27.60 34.10 BULK CALCITE 96.1 8 71 24 210.30 215.50 BULK CALCITE 94.3