leg site hole core section top of sample interval (cm) bottom of sample interval (cm) subbottom depth(m) fraction mineral percent 67 499 B 2 2 015 017 211.70 <2 MICRONS "variety of MONTMORILLONITE" 100. 67 499 B 2 2 063 065 10.13 <2 MICRONS "variety of MONTMORILLONITE" 100. 67 499 B 6 1 058 060 248.60 <2 MICRONS "variety of MONTMORILLONITE" 94.0 67 499 B 6 1 058 060 248.60 <2 MICRONS ILLITE 6.0 67 499 B 8 2 002 004 268.50 <2 MICRONS "variety of MONTMORILLONITE" 100. 67 499 B 9 CC 017 019 84.50 <2 MICRONS "variety of MONTMORILLONITE" 100.