leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 28 273 2 4.50 9.90 CLAY 'diffuse scattering' measure 89.3 28 273 2 4.50 9.90 CLAY 'amorphous material' measure 77.0 28 273 2 4.50 9.90 CLAY QUARTZ 22.6 28 273 2 4.50 9.90 CLAY K-FELDSPAR 6.7 28 273 2 4.50 9.90 CLAY PLAGIOCLASE 19.3 28 273 2 4.50 9.90 CLAY KAOLINITE 1.1 28 273 2 4.50 9.90 CLAY MICA 31.6 28 273 2 4.50 9.90 CLAY CHLORITE 5.5 28 273 4 23.50 26.10 CLAY 'diffuse scattering' measure 90.5 28 273 4 23.50 26.10 CLAY 'amorphous material' measure 79.6 28 273 4 23.50 26.10 CLAY QUARTZ 22.3 28 273 4 23.50 26.10 CLAY K-FELDSPAR 7.5 28 273 4 23.50 26.10 CLAY PLAGIOCLASE 17.9 28 273 4 23.50 26.10 CLAY MICA 30.7 28 273 4 23.50 26.10 CLAY CHLORITE 6.0 28 273 6 42.50 44.50 CLAY 'diffuse scattering' measure 88.4 28 273 6 42.50 44.50 CLAY 'amorphous material' measure 75.7 28 273 6 42.50 44.50 CLAY QUARTZ 22.0 28 273 6 42.50 44.50 CLAY K-FELDSPAR 8.0 28 273 6 42.50 44.50 CLAY PLAGIOCLASE 21.0 28 273 6 42.50 44.50 CLAY MICA 28.6 28 273 6 42.50 44.50 CLAY CHLORITE 6.2 28 273 6 42.50 44.50 CLAY MONTMORILLONITE 10.6