THIN SECTION:	"U1301B-2R-1, 88-90 cm (Piece 12d)"				TS #	5	Unit:1C	"OBSERVER: MS, RC"
ROCK NAME: 	Sparsely plagioclase phyric basalt							
WHERE SAMPLED:	Pillow interior							
GRAIN SIZE:	Cryptocrystalline							
TEXTURE:	"Intersertal, glomeroporphyritic."							
PRIMARY	PERCENT 	PERCENT	SIZE (mm)			APPROX.		
MINERALOGY	PRESENT 	ORIGINAL	min.	max.	av.	COMP.	MORPHOLOGY	COMMENTS
PHENOCRYSTS								
Plagioclase	3.2	3.2	0.3	2.8	1.2		Euhedral to skeletal	"Occurs singly, and in mono- and poly-mineralic glomeroporphyritic clots."



GROUNDMASS								
Plagioclase	22.9	22.9		<0.3			Euhedral	Microlaths and needles.
Clinopyroxene	12	12		<0.3			Euhedral to anhedral	Occurs singly or attached to/intergrown with plagioclase.
Olivine	0	2.5		<0.3			Subhedral	
Mesostasis	55	59						Intersertal texture. Consist of opaque + plagioclase + clinopyroxene + clay minerals.

SECONDARY			SIZE (mm)					
MINERALOGY	PERCENT		min.	max.	av.		REPLACING / FILLING	COMMENTS
Saponite	5						"Olivine, mesostasis, vein"	Brown to green color in the vesicles and olivine phenocrysts.
Opaque/Feox	1						Vesicles	Present in the vesicles.

VESICLES/			SIZE (mm)					
CAVITIES	PERCENT	 LOCATION	min.	max.	av.		FILLING / MORPHOLOGY	COMMENTS
Vesicles	Tr	Even	0.1	0.1	0.1		Saponite	



COMMENTS : 	Vein consists of green to pale brown saponite and Feox.