leg site hole core section top of sample interval (m) bottom of sample interval (m) fraction mineral percent 23 230 1 0.00 4.40 CLAY 'diffuse scattering' measure 88.6 23 230 1 0.00 4.40 CLAY 'amorphous material' measure 82.2 23 230 1 0.00 4.40 CLAY QUARTZ 11.9 23 230 1 0.00 4.40 CLAY K-FELDSPAR 6.4 23 230 1 0.00 4.40 CLAY PLAGIOCLASE 6.2 23 230 1 0.00 4.40 CLAY KAOLINITE 11.9 23 230 1 0.00 4.40 CLAY MICA 21.7 23 230 1 0.00 4.40 CLAY CHLORITE 7.5 23 230 1 0.00 4.40 CLAY MONTMORILLONITE 18.7 23 230 1 0.00 4.40 CLAY PALYGORSKITE 10.4