leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 17 168 4 31.00 33.10 CLAY 'diffuse scattering' measure 88.8 17 168 4 31.00 33.10 CLAY 'amorphous material' measure 82.6 17 168 4 31.00 33.10 CLAY QUARTZ 11.1 17 168 4 31.00 33.10 CLAY PLAGIOCLASE 5.5 17 168 4 31.00 33.10 CLAY KAOLINITE 3.1 17 168 4 31.00 33.10 CLAY MICA 12.2 17 168 4 31.00 33.10 CLAY MONTMORILLONITE 52.6 17 168 4 31.00 33.10 CLAY CLINOPTILOLITE 6.7