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 CLAY 'diffuse scattering' measure 82.9 23 220 4 27.00 27.80 CLAY 'amorphous material' measure 73.2 23 220 4 27.00 27.80 CLAY QUARTZ 19.1 23 220 4 27.00 27.80 CLAY K-FELDSPAR 2.1 23 220 4 27.00 27.80 CLAY PLAGIOCLASE 3.6 23 220 4 27.00 27.80 CLAY KAOLINITE 2.7 23 220 4 27.00 27.80 CLAY MICA 26.8 23 220 4 27.00 27.80 CLAY CHLORITE 7.0 23 220 4 27.00 27.80 CLAY MONTMORILLONITE 25.1 23 220 7 102.00 102.40 CLAY 'diffuse scattering' measure 86.6 23 220 7 102.00 102.40 CLAY 'amorphous material' measure 79.1 23 220 7 102.00 102.40 CLAY QUARTZ 17.9 23 220 7 102.00 102.40 CLAY PLAGIOCLASE 2.0 23 220 7 102.00 102.40 CLAY KAOLINITE 2.5 23 220 7 102.00 102.40 CLAY MICA 16.1 23 220 7 102.00 102.40 CLAY CHLORITE 7.4 23 220 7 102.00 102.40 CLAY MONTMORILLONITE 22.7 23 220 17 297.00 297.80 CLAY 'diffuse scattering' measure 86.8 23 220 17 297.00 297.80 CLAY 'amorphous material' measure 79.3 23 220 17 297.00 297.80 CLAY QUARTZ 1.3 23 220 17 297.00 297.80 CLAY CRISTOBALITE 13.8 23 220 17 297.00 297.80 CLAY MONTMORILLONITE 80.6 23 220 17 297.00 297.80 CLAY CLINOPTILOLITE 1.9