THIN SECTION:	"U1301B-5R-1, 90-91 cm (Piece 11)"				TS #	10	Unit:1C	"OBSERVER: RC, MS"
ROCK NAME: 	Sparsely plagioclase phyric basalt							
WHERE SAMPLED:	Pillow interior							
GRAIN SIZE:	Microcrystalline							
TEXTURE:	"Intersertal, vesicular, glomeroporphyritic"							
PRIMARY	PERCENT 	PERCENT	SIZE (mm)			APPROX.		
MINERALOGY	PRESENT 	ORIGINAL	min.	max.	av.	COMP.	MORPHOLOGY	COMMENTS
PHENOCRYSTS								
Plagioclase	3	3	0.3	2.5	1		Euhedral to subhedral	"Occurs singly, but is more common in monomineralic glomeroporphyritic clots"



GROUNDMASS								
Plagioclase	20	20		<0.3			Euhedral; lath	Laths and needles.
Clinopyroxene	4	4		<0.5			Euhedral to anhedral	
Olivine	0	2		<0.3			Subhedral	
Mesostasis	61	69						

SECONDARY			SIZE (mm)					
MINERALOGY	PERCENT		min.	max.	av.		REPLACING / FILLING	COMMENTS
Saponite	8						"Olivine, mesostasis, vein, vesicles"	"Brown to green color, present in the vesicles and olivine phenocrysts."
Feox	1						"Olivine, vesicles, vein"	
Iddingsite	1						"Vein, mesostasis, olivine"	
Oparue  (Py?)	Tr						Mesostasis	

VESICLES/			SIZE (mm)					
CAVITIES	PERCENT	 LOCATION	min.	max.	av.		FILLING / MORPHOLOGY	COMMENTS
Vesicles	2	Even	0.1	0.8	0.5		"Saponite, Feox"	



COMMENTS : 	"Vein and vugs are filled with saponite + iddingsite + Feox, but most of the vein is not preserved in TS. "