leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 30 288 1 0.00 2.70 BULK 'diffuse scattering' measure 57.6 30 288 1 0.00 2.70 BULK 'amorphous material' measure 31.5 30 288 1 0.00 2.70 BULK CALCITE 97.5 30 288 1 0.00 2.70 BULK QUARTZ 0.8 30 288 2 10.00 16.40 BULK 'diffuse scattering' measure 77.9 30 288 2 10.00 16.40 BULK 'amorphous material' measure 63.6 30 288 2 10.00 16.40 BULK CALCITE 83.7 30 288 2 10.00 16.40 BULK QUARTZ 0.5 30 288 2 10.00 16.40 BULK PLAGIOCLASE 12.0 30 288 5 67.00 72.20 BULK 'diffuse scattering' measure 50.0 30 288 5 67.00 72.20 BULK 'amorphous material' measure 19.2 30 288 5 67.00 72.20 BULK CALCITE 97.9 30 288 5 67.00 72.20 BULK QUARTZ 0.5 30 288 6 86.00 88.70 BULK 'diffuse scattering' measure 43.2 30 288 6 86.00 88.70 BULK 'amorphous material' measure 8.4