leg site hole core section top of sample interval(cm) bottom of sample interval (cm) subbottom depth(m) fraction mineral percent 69 504 A 3 1 >20 MICRONS QUARTZ 8.0 69 504 A 3 1 >20 MICRONS FELDSPAR (undifferentiated) 3.0 69 504 A 3 1 >20 MICRONS APATITE 5.0 69 504 A 3 1 >20 MICRONS PYRITE 5.0 69 504 A 4 1 >20 MICRONS QUARTZ 3.0 69 504 A 4 1 >20 MICRONS FELDSPAR (undifferentiated) 5.0 69 504 A 4 1 >20 MICRONS APATITE 5.0 69 504 A 4 1 >20 MICRONS PYRITE 5.0 69 504 A 5 1 >20 MICRONS QUARTZ 5.0 69 504 A 5 1 >20 MICRONS FELDSPAR (undifferentiated) 3.0 69 504 A 5 1 >20 MICRONS APATITE 5.0