leg	site	hole	core	section	top of sample interval (cm)	bottom of sample interval (cm)	subbottom depth(m)	fraction	mineral	percent
65	484		1	2	021	023	1.72	<2 MICRONS	"variety of MONTMORILLONITE"	56.0
65	484		1	2	021	023	1.72	<2 MICRONS	ILLITE	36.0
65	484		1	2	021	023	1.72	<2 MICRONS	CHLORITE	 8.0