leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 16 157 A 1 0.00 7.54 CLAY 'diffuse scattering' measure 96.4 16 157 A 1 0.00 7.54 CLAY 'amorphous material' measure 94.4 16 157 A 1 0.00 7.54 CLAY QUARTZ 11.0 16 157 A 1 0.00 7.54 CLAY KAOLINITE 4.7 16 157 A 1 0.00 7.54 CLAY MICA 13.8 16 157 A 1 0.00 7.54 CLAY MONTMORILLONITE 66.8 16 157 A 2 9.00 10.48 CLAY 'diffuse scattering' measure 85.0 16 157 A 2 9.00 10.48 CLAY 'amorphous material' measure 76.6 16 157 A 2 9.00 10.48 CLAY QUARTZ 8.8 16 157 A 2 9.00 10.48 CLAY PLAGIOCLASE 4.2 16 157 A 2 9.00 10.48 CLAY KAOLINITE 3.4 16 157 A 3 18.00 24.04 CLAY 'diffuse scattering' measure 96.1 16 157 A 3 18.00 24.04 CLAY 'amorphous material' measure 94.0 16 157 A 3 18.00 24.04 CLAY QUARTZ 6.9 16 157 A 3 18.00 24.04 CLAY PLAGIOCLASE 4.3 16 157 A 3 18.00 24.04 CLAY KAOLINITE 5.0 16 157 A 3 18.00 24.04 CLAY MICA 8.6 16 157 A 3 18.00 24.04 CLAY MONTMORILLONITE 56.0 16 157 A 3 18.00 24.04 CLAY PALYGORSKITE 14.2 16 157 A 3 18.00 24.04 CLAY PYRITE 1.9