leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 18 172 1 0.00 4.10 SILT 'diffuse scattering' measure 70.1 18 172 1 0.00 4.10 SILT 'amorphous material' measure 53.3 18 172 1 0.00 4.10 SILT QUARTZ 34.6 18 172 1 0.00 4.10 SILT PLAGIOCLASE 22.4 18 172 1 0.00 4.10 SILT KAOLINITE 1.5 18 172 1 0.00 4.10 SILT MICA 34.5 18 172 1 0.00 4.10 SILT CHLORITE 4.0 18 172 1 0.00 4.10 SILT BARITE 1.6 18 172 1 0.00 4.10 SILT AMPHIBOLE 1.4 18 172 2 8.00 16.60 SILT 'diffuse scattering' measure 66.0 18 172 2 8.00 16.60 SILT 'amorphous material' measure 46.9 18 172 2 8.00 16.60 SILT QUARTZ 4.3 18 172 2 8.00 16.60 SILT PLAGIOCLASE 11.1 18 172 2 8.00 16.60 SILT MICA 4.9 18 172 2 8.00 16.60 SILT PHILLIPSITE 79.7 18 172 3 17.00 18.10 SILT 'diffuse scattering' measure 91.1 18 172 3 17.00 18.10 SILT 'amorphous material' measure 86.1 18 172 3 17.00 18.10 SILT QUARTZ 4.9 18 172 3 17.00 18.10 SILT PLAGIOCLASE 11.0 18 172 3 17.00 18.10 SILT MICA 9.2 18 172 3 17.00 18.10 SILT PHILLIPSITE 75.0 18 172 3 17.00 18.10 SILT GOETHITE -65.