leg site hole core section top of sample interval(cm) bottom of sample interval (cm) subbottom depth(m) fraction mineral percent 67 499 1 1 129 131 1.29 BULK CALCITE 2.0 67 499 3 4 068 070 15.68 BULK CALCITE 2.0 67 499 5 1 012 014 29.62 BULK CALCITE 4.0 67 499 6 2 007 009 40.57 BULK CALCITE 3.0 67 499 9 1 105 107 68.55 BULK CALCITE 6.0 67 499 11 1 096 098 87.46 BULK CALCITE 4.0 67 499 12 3 079 081 99.29 BULK CALCITE 8.0 67 499 13 6 029 031 113.29 BULK CALCITE 2.0 67 499 14 2 074 076 117.24 BULK CALCITE 1.0 67 499 18 3 031 033 156.31 BULK CALCITE 5.0 67 499 22 3 057 059 194.57 BULK CALCITE 2.0 67 499 23 3 105 107 204.55 BULK CALCITE 63.0 67 499 24 1 087 089 210.87 BULK CALCITE 64.0 67 499 25 4 084 086 224.84 BULK CALCITE 69.0