THIN SECTION:	"U1301B-36R-2, 102-104 cm (Piece 19)"				TS #	54	Unit:8C	"OBSERVER: RC, MS"
ROCK NAME: 	Moderately clinopyroxene-olivine-plagioclase phyric basalt							
WHERE SAMPLED:	Vein							
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	3.6	3.6	1.2	4	2		Euhedral; lath and stabby	"Occurs singly, but is more common in monomineralic, bimineralic, and polymineralic glomeroporphyritic clots with pyroxene. "
Clinopyroxene	1.8	1.8	1.2	5.5	2		Subhedral	Present as glomeroporphyritic clots associated with plagioclase.
Olivine	0	0.3	0.5	0.8	0.7		Euhedral	Completely replaced by saponite and Feox/iddingsite.

GROUNDMASS								
Plagioclase	20.6	20.6		<0.5			Euhedral	Laths and needles.
Clinopyroxene	9	9		<0.3			Anhedral	
Olivine	0	3.8		<0.3			Euhedral	
Mesostasis	55	59.1						"Sheaf-spherulitic texture, includes opaque minerals."
SECONDARY			SIZE (mm)					
MINERALOGY	PERCENT		min.	max.	av.		REPLACING / FILLING	COMMENTS
Saponite	3						"Olivine, mesostasis, vesicles"	Fibrous/round.
Feox	2							
Iddingsite	1						"Vesicles, olivine"	
Celadonite	2							

VESICLES/			SIZE (mm)					
CAVITIES	PERCENT	 LOCATION	min.	max.	av.		FILLING / MORPHOLOGY	COMMENTS
Vesicles	0.9	Even	0.1	0.3	0.2		"Saponite, Feox"	

COMMENTS : 	"Pale brown and green saponite are present in the non-halo and green halo zones, respectively."