Table T4. Mineralogical assemblages of the clay fraction of sediments, Holes 1109B, 1109C, and 1109D.

Core, section, interval (cm)	Depth (mbsf)	Quartz	Feldspar	Pyrite	Magnesite	Clinoptinolite	Illite	Talc	Serpentine	Smectite	C/S	Chlorite
180-1109B-
1H-2, 145-150	2.9	xx	x				x			xx		xx
2H-3, 145-150	9.8	xx	x				x				xx	xx
2H-5, 145-150	12.1	xx	x	x			x			xx		xx
180-1109C-
3H-2, 145-150	19.9	xx	x	*			x					xx
5H-3, 145-150	40.4	xx	x (P)				x			xx		xx
6H-3, 145-150	49.9	xx	x (P)				x				xx	xx
8H-3, 145-150	68.9	xx	x (P)				*			xx		xx
10H-4, 115-120	89.1	xx	x				*	xx	xx		xx	xx
11H-3, 145-150	97.0	xx	x		*		*	xx	xx		xx	xx
14X-3, 145-150	126.1	xx	x	*			*	xx	xx	xx		xx
16X-3, 145-150	145.3	xx	x				*	xx	xx	xx		xx
18X-3, 115-120	164.3	xx	x	*			*	xx	xx	xxx	xx
23X-3, 33-43	212.4	xx	x				*	xx	xx	xx		xx
26X-1, 140-145	238.4	x	x		x			xx	xx	xx		xx
29X-3, 140-150	270.4	x	xx (P)	*			*			xx		xx
32X-3, 140-150	299.2	xx	x				*			xx		xxx
180-1109D-
35X-3, 140-150	328.3	xx	x				*			xxx		x
180-1109C-
39X-3, 140-150	357.0	x	x			xx	*			xxx		x
41X-2, 140-150	374.4	xx	x				*			xx		x
180-1109D-
7R-3, 120-130	410.7	xx	x				*			xx		x
9R-3, 101-111	430.1	xx	xx				x				xx	xx
11R-3, 122-132	449.3	xx	xx				*				xx	xx
13R-3, 79-89	467.9	xx	x	*			*			xxx		x
16R-5, 120-130		xx	x	*			*					xxx
18R-4, 120-130	517.7	xx	x				x			xx		x
22R-1, 124-134	552.4	*	*			xx	*			xx		x
26R-3, 30-40	583.0	xx	x				*			xxx		x
29R-2, 93-103	610.9	xx	xx (P)	x			*			xx		xx
34R-3, 123-133	661.0	x	*				*			xxx		x ?
38R-4, 150-150	701.4	xx	x				*	x		xxx		x

Notes: Assemblages were determined by X-ray diffraction analyses. C/S = chlorite-smectite mixed-layer, (P) = including feldspar. xxx = abundant, xx = common, x = rare, * = trace.