leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 6 56 B 10 2 225.70 225.72 BULK CALCITE 99.0 6 56 B 10 4 229.14 229.16 BULK CALCITE 76.3 6 56 B 10 4 229.14 229.16 BULK PLAGIOCLASE 2.0