leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 23 220 4 27.00 27.80 SILT 'diffuse scattering' measure 64.8 23 220 4 27.00 27.80 SILT 'amorphous material' measure 45.0 23 220 4 27.00 27.80 SILT QUARTZ 43.0 23 220 4 27.00 27.80 SILT K-FELDSPAR 3.5 23 220 4 27.00 27.80 SILT PLAGIOCLASE 16.3 23 220 4 27.00 27.80 SILT MICA 29.4 23 220 4 27.00 27.80 SILT CHLORITE 6.2 23 220 4 27.00 27.80 SILT AMPHIBOLE 1.7 23 220 17 297.00 297.80 SILT 'diffuse scattering' measure 87.5 23 220 17 297.00 297.80 SILT 'amorphous material' measure 80.4 23 220 17 297.00 297.80 SILT QUARTZ 3.9 23 220 17 297.00 297.80 SILT CRISTOBALITE 27.2 23 220 17 297.00 297.80 SILT PLAGIOCLASE 3.6 23 220 17 297.00 297.80 SILT MONTMORILLONITE 23.3 23 220 17 297.00 297.80 SILT TRIDYMITE 4.4 23 220 17 297.00 297.80 SILT CLINOPTILOLITE 37.5