leg site hole core section top of sample interval(cm) bottom of sample interval (cm) subbottom depth(m) fraction mineral percent 55 430 2 4 008 010 BULK 'amorphous material' measure 28.0 55 430 2 4 008 010 BULK CLAY MINERALS 52.0 55 430 2 4 008 010 BULK QUARTZ 2.0 55 430 2 4 008 010 BULK FELDSPAR (undifferentiated) 9.0 55 430 2 4 008 010 BULK APATITE 3.0 55 430 2 4 008 010 BULK CALCITE 12.0