THIN SECTION:	"U1301B-26R-1, 41-43 cm (Piece 17)"				TS #	43	Unit:7C	"OBSERVER: MS, RC"
ROCK NAME: 	Moderately clinopyroxene-plagioclase phyric basalt							
WHERE SAMPLED:	Chilled contact							
GRAIN SIZE:	Cryptocrystalline							
TEXTURE:	"Glassy, spherulitic hyalo-ophitic, glomeroporphyritic, pilotaxitic."							
PRIMARY	PERCENT 	PERCENT	SIZE (mm)			APPROX.		
MINERALOGY	PRESENT 	ORIGINAL	min.	max.	av.	COMP.	MORPHOLOGY	COMMENTS
PHENOCRYSTS								
Plagioclase	1.1	1.1	1	3.3	1.3		Euhedral to subhedral	"Some has honyycomb texture, glass inclusion in some crystals."
Olivine	0	1.2	0.8	1.2	0.6		Euhedral to subhedral	Completely replaced by brown saponite + Feox.


GROUNDMASS								
Plagioclase	11.7	11.7		<0.3			Euhedral	Microlaths.
Clinopyroxene	5	5		<0.3			Euhedral to anhedral	
Olivine	0	2.4		<0.3			Subhedral	
Mesostasis + glass	72	75.8						Varies from reddish-brown to gray with a massive to sheaf-spherulitic texture.

SECONDARY			SIZE (mm)					
MINERALOGY	PERCENT		min.	max.	av.		REPLACING / FILLING	COMMENTS
Saponite	6						"Olivine, mesostasis, vesicles"	Fibrous to granular brown-green saponite.
Feox	3						"Olivine, vesicles, mesostasis"	
Pyrite	Tr						"Olivine, mesostasis"	

VESICLES/			SIZE (mm)					
CAVITIES	PERCENT	 LOCATION	min.	max.	av.		FILLING / MORPHOLOGY	COMMENTS
Vesicles	2.8	Even	0.1	0.5	0.3		"Saponite, Feox"	


COMMENTS :