leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 29 280 1 0.00 1.90 CLAY 'diffuse scattering' measure 90.7 29 280 1 0.00 1.90 CLAY 'amorphous material' measure 79.6 29 280 1 0.00 1.90 CLAY QUARTZ 16.9 29 280 1 0.00 1.90 CLAY K-FELDSPAR 9.2 29 280 1 0.00 1.90 CLAY PLAGIOCLASE 13.7 29 280 1 0.00 1.90 CLAY KAOLINITE 6.9 29 280 1 0.00 1.90 CLAY MICA 8.9 29 280 1 0.00 1.90 CLAY MONTMORILLONITE 32.5 29 280 1 0.00 5.70 CLAY 'diffuse scattering' measure 93.7 29 280 1 0.00 5.70 CLAY 'amorphous material' measure 85.1 29 280 1 0.00 5.70 CLAY QUARTZ 13.4 29 280 1 0.00 5.70 CLAY K-FELDSPAR 11.5 29 280 1 0.00 5.70 CLAY PLAGIOCLASE 9.7 29 280 1 0.00 5.70 CLAY KAOLINITE 6.6 29 280 1 0.00 5.70 CLAY MICA 15.2 29 280 1 0.00 5.70 CLAY MONTMORILLONITE 40.1 29 280 1 0.00 5.70 CLAY GYPSUM 2.8