leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 23 219 9 69.00 69.40 SILT 'diffuse scattering' measure 82.1 23 219 9 69.00 69.40 SILT 'amorphous material' measure 72.0 23 219 9 69.00 69.40 SILT QUARTZ 46.7 23 219 9 69.00 69.40 SILT K-FELDSPAR 12.2 23 219 9 69.00 69.40 SILT PLAGIOCLASE 19.0 23 219 9 69.00 69.40 SILT KAOLINITE 2.6 23 219 9 69.00 69.40 SILT MICA 15.7 23 219 9 69.00 69.40 SILT CHLORITE 3.7 23 219 18 183.00 183.40 SILT 'diffuse scattering' measure 98.3 23 219 18 183.00 183.40 SILT 'amorphous material' measure 97.3 23 219 18 183.00 183.40 SILT QUARTZ 37.2 23 219 18 183.00 183.40 SILT PLAGIOCLASE 19.5 23 219 18 183.00 183.40 SILT MICA 22.0 23 219 18 183.00 183.40 SILT CLINOPTILOLITE 21.3