leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 8 69 A 2 70.50 78.70 BULK CALCITE 98.5 8 69 A 3 80.30 88.20 BULK CALCITE 96.8 8 69 A 9 143.60 150.30 BULK QUARTZ 16.7 8 69 A 9 143.60 150.30 BULK PLAGIOCLASE 22.4 8 69 A 10 152.90 160.90 BULK QUARTZ 4.2 8 69 A 10 152.90 160.90 BULK MICA 53.4 8 69 A 11 213.80 221.90 BULK K-FELDSPAR 12.2 8 69 A 11 213.80 221.90 BULK PLAGIOCLASE 12.2 8 69 A 11 213.80 221.90 BULK MONTMORILLONITE 49.0 8 69 A 12 223.20 223.20 BULK MONTMORILLONITE 71.1