leg site hole core section top of sample interval (cm) bottom of sample interval (cm) subbottom depth(m) fraction mineral percent 89 585 A 5 1 079 <2 MICRONS "variety of MONTMORILLONITE" 100. 89 585 A 5 3 013 <2 MICRONS "variety of MONTMORILLONITE" 100. 89 585 A 7 1 092 <2 MICRONS ILLITE 5.0 89 585 A 7 1 092 <2 MICRONS "variety of MONTMORILLONITE" 95.0 89 585 A 7 3 070 <2 MICRONS "variety of MONTMORILLONITE" 100. 89 585 A 8 1 007 <2 MICRONS "variety of MONTMORILLONITE" 100. 89 585 A 9 1 067 <2 MICRONS ILLITE 5.0 89 585 A 9 1 067 <2 MICRONS "variety of MONTMORILLONITE" 95.0 89 585 A 10 1 001 <2 MICRONS ILLITE 5.0 89 585 A 10 1 001 <2 MICRONS MIXED LAYER CLAY 5.0 89 585 A 10 1 001 <2 MICRONS "variety of MONTMORILLONITE" 70.0 89 585 A 10 1 001 <2 MICRONS PALYGORSKITE 20.0