leg	site	hole	core	section	top of sample interval (cm)	bottom of sample interval (cm)	subbottom depth(m)	fraction	mineral	percent
67	500		1	2	142	144	2.90	<2 MICRONS	"variety of MONTMORILLONITE"	100.
67	500		9	1	053	055	71.50	<2 MICRONS	"variety of MONTMORILLONITE"	58.0
67	500		9	1	053	055	71.50	<2 MICRONS	ILLITE	28.0
67	500		17	5	013	016	153.10	<2 MICRONS	"variety of MONTMORILLONITE"	100.