THIN SECTION:	"U1301B-36R-3, 57-60 cm (Piece 10)"				TS #	55	Unit:8C	"OBSERVER: MS, RC"
ROCK NAME: 	Highly clinopyroxene-olivine-plagioclase phyric basalt							
WHERE SAMPLED:								
GRAIN SIZE:	Cryptocrystalline							
TEXTURE:	"Spherulitic, hyalo-ophitic, glomeroporphyritic, vesicular"							
PRIMARY	PERCENT 	PERCENT	SIZE (mm)			APPROX.		
MINERALOGY	PRESENT 	ORIGINAL	min.	max.	av.	COMP.	MORPHOLOGY	COMMENTS
PHENOCRYSTS								
Plagioclase	7	7	0.5	2.2	1.2		Euhedral to subhedral	Occurs as solitary crystals and in monomineralic and bimineralic glomeroporphyritic clots with clinopyroxene; some glass inclusions present. 
Clinopyroxene	5	5	0.3	1.4	0.7		Euhedral to anhedral	"Occur as solitary crystals, and in glomeroporphyritic clots associated with plagioclase laths."
Olivine	0	2	0.3	0.8	0.4		Euhedral to subhedral	"Completely replaced by brown saponite, celadonite, and Feox."

GROUNDMASS								
Plagioclase	15	15		<0.2			Euhedral	Microlaths.
Clinopyroxene	5	5		<0.2			Euhedral to anhedral	
Olivine	0	2		<0.2			Subhedral	
Mesostasis	55	61						Includes opaque crystals.

SECONDARY			SIZE (mm)					
MINERALOGY	PERCENT		min.	max.	av.		REPLACING / FILLING	COMMENTS
Saponite	7						"Olivine, vesicles"	Granular brown-green saponite.
Celadonite	1						"Olivine, vesicles"	
FeO(OH) or iddingsite	5						"Olivine, vesicles"	
Pyrite	Tr						Mesostasis	

VESICLES/			SIZE (mm)					
CAVITIES	PERCENT	 LOCATION	min.	max.	av.		FILLING / MORPHOLOGY	COMMENTS
Vesicles	2	Even	0.2	0.8	0.5		"Saponite, celadonite, Feox"	

COMMENTS : 	Green halo: opaque mineral is concentrated along halo boundary.