leg	site	hole	core	coretype	section	top interval	bottom interval	piece	subpiece	unit number	sub unit	observer	rockname	texture	where sampled	grain size	phenocrysts observed	phenocrysts mineral name (1)	phenocrysts present persent (1)	phenocrysts original percent (1)	phenocrysts size (1)	phenocrysts composition (1)	phenocrysts morphology (1)	phenocrysts comments (1)	phenocrysts mineral name (2)	phenocrysts present persent (2)	phenocrysts original percent (2)	phenocrysts size (2)	phenocrysts composition (2)	phenocrysts morphology (2)	phenocrysts comments (2)	phenocrysts mineral name (3)	phenocrysts present persent (3)	phenocrysts original percent (3)	phenocrysts size (3)	phenocrysts composition (3)	phenocrysts morphology (3)	phenocrysts comments (3)	phenocrysts mineral name (4)	phenocrysts present persent (4)	phenocrysts original percent (4)	phenocrysts size (4)	phenocrysts composition (4)	phenocrysts morphology (4)	phenocrysts comments (4)	phenocrysts mineral name (5)	phenocrysts present persent (5)	phenocrysts original percent (5)	phenocrysts size (5)	phenocrysts composition (5)	phenocrysts morphology (5)	phenocrysts comments (5)	groundmass observed	groundmass mineral name (1)	groundmass present percent (1)	groundmass original percent (1)	groundmass size (1)	groundmass composition (1)	groundmass morphology (1)	groundmass comments (1)	groundmass mineral name (2)	groundmass present percent (2)	groundmass original percent (2)	groundmass size (2)	groundmass composition (2)	groundmass morphology (2)	groundmass comments (2)	groundmass mineral name (3)	groundmass present percent (3)	groundmass original percent (3)	groundmass size (3)	groundmass composition (3)	groundmass morphology (3)	groundmass comments (3)	groundmass mineral name (4)	groundmass present percent (4)	groundmass original percent (4)	groundmass size (4)	groundmass composition (4)	groundmass morphology (4)	groundmass comments (4)	groundmass mineral name (5)	groundmass present percent (5)	groundmass original percent (5)	groundmass size (5)	groundmass composition (5)	groundmass morphology (5)	groundmass comments (5)	vesicles oberserved	vesicles type code (1)	vesicles percent (1)	vesicles size (1)	vesicles location (1)	vesicles filling (1)	vesicles shape (1)	vesicles comments (1)	vesicles type code (2)	vesicles percent (2)	vesicles size (2)	vesicles location (2)	vesicles filling (2)	vesicles shape (2)	vesicles comments (2)	vesicles type code (3)	vesicles percent (3)	vesicles size (3)	vesicles location (3)	vesicles filling (3)	vesicles shape (3)	vesicles comments (3)	secondary mineraliztion observed	secondary mineral name (1)	secondary percent (1)	secondary replacement (1)	secondary comment (1)	secondary mineral name (2)	secondary percent (2)	secondary replacement (2)	secondary comment (2)	secondary mineral name (3)	secondary percent (3)	secondary replacement (3)	secondary comment (3)	secondary mineral name (4)	secondary percent (4)	secondary replacement (4)	secondary comment (4)	secondary mineral name (5)	secondary percent (5)	secondary replacement (5)	secondary comment (5)	secondary mineral name (6)	secondary percent (6)	secondary replacement (6)	secondary comment (6)	secondary mineral name (7)	secondary percent (7)	secondary replacement (7)	secondary comment (7)	secondary mineral name (8)	secondary percent (8)	secondary replacement (8)	secondary comment (8)	main comments	more data	latitude	longitude	depth	top interval depth	bottom interval depth
109	670	A	001	Positive Displacement	01	019	021	004		0001		KOM	Serpentinized harzburgite (aphyric)	Porphyroclastic	Massive Peridotite	Medium-coarse			    	    	          					    	     	          					    	   	          					    	    	          					    	    	          					Orthopyroxene	1	8	0.8-6.4	En90	Lensoid		Spinel	1	1	0.08-1.8	Cr#=50	Xenomorphic		Olivine	0	89	0.1-0.8		Olivine pseudomorphs are polygonal		Clinopyroxene(?)	<1	2	0.01-0.25		Polygonal	Possible cpx.									Vesicles	0						        							        								Carbonate	1	Replacing olivine, filling veins		Chlorite	2	Replacing ol; intergrown w/magnetite		Magnetite	10	Fills veins, outlines former ol, rims mt	Dispersed throughout.	Talc	5	Surround & replacespresent & former opx		Lizardite	65	Replaces ol, also chrysotile	Mesh texture.	Chrysotile	3		Veins	Pargasite	<1		Possible pargasite replacing cpx.	Biotite	10			Opx is bent into lensoid shape and has sweeping, undulatory extinction. Carbonate veins (0.04-0.20 mm) are long and branching. They cut serpentine and magnetite veins, and appear to be the last event in the developement of the rock. Serpentine veins occur as two types. The first type is 0.8-3.2 mm long, and 0.05-0.15 mm wide, lensoid gashes which are highly birefringent. These veins crosscut magnetite veins but not carbonate veins. The second type is 0.01-0.5 mm wide, and is lined with magnetite. These veins cross cut the entire section.	no	23.16658	-45.03217	0006.40	659	
109	670	A	002	Positive Displacement	01	045	047	010		0001		BDC	Clinopyroxene-bearing serpentinized harzburgite	Porphyroclastic	Plutonic intrusion	Coarse-grained porphyroclasts set in fine grained matrix		Olivine	?   	88.5	0.5-1.2   		Hexagonal	Olivine acquired a granoblastic texture during recrystallization. Mesh texture forms after olivine neoblasts, composed of lizardite and magnetite.	Clinopyroxene	trace	~1   	2         	Diopside	Rounded	Porphyroclast is bent.	Spinel	0.4 	0.5	0.2-0.7   	Picotite	Irregular, hercynite, holly-leaf	Translucent, yellow-brown. Margin altered to opaques (ferritchromite?).	Orthopyroxene	trace	10  	1.5-8.0   	Enstatite	Tabular, prismatic or contorted	Porphyroclasts are kinked but some others are undeformed.		    	    	          					?	?	?	?		?																															Vesicles	0						        							        								Carbonate	trace	Veinlets	Associated with talc or by-product of cpx serpentinization.	Bastite	12	Pyroxene	Pseudomorphs after pyroxene.	Lizardite	87.6	Olivine	Includes approximately 10% bastite. Mesh texture of olivine granoblasts. Opx, cpx, (lizardite) with amorphous serpentine core (or cryptocrystalline chlorite).	Chrysotile	2	Veinlets	White to pale yellow, transversal fibers. Veinlets crosscut all the metamorphic phases and are deformed. At least two generations.	Magnetite	5	Fractures	Seems to be around mesh texture olivine, or filling fractures in cpx, olivine-rich part of the thin section.	Talc	2	Serpentine	Flaky lining opx porphyroclasts, replaces serpentine (lizardite).	Iron hydroxide	1	Magnetite	Late alteration of magnetite or flollow chrysotile veinlets.	Tremolite	trace	Serpentine	Needles < 0.1 mm fringing opx pseudomorphs.	Sequence of events: 1) High temperature plastic deformation. 2) Low temperature serpentinization; lizardite, biotite, magnetite, and alteration of Cr spinel. 3) Talc replaces serpentinized pseudomorphs (lining of porphyroclasts). 4) Chrysotile veins crosscuts every metamorphic mineral. 5) Iron hydroxide alters magnetite and follows chrysotile veinlets in some places.	no	23.16658	-45.03217	0016.80	1724	
109	670	A	003	Wash Core	01	012	014	002		0001		RIC	Serpentinized harzburgite	Porphyroclastic	Exterior end of pp/pm minicore	Coarse		Olivine	0   	70  	0.2-0.5   		-		Orthopyroxene	0   	28   	0.5-5.0   		Subhedral	Completely replaced by serpentine. Commonly bent.	Spinel	2   	2  	1-3       	Chromian	Highly irregular	Replaced by opaque material. Poikiolitically enclosed by opx.		    	    	          					    	    	          					?	?	?	?		?																															Vesicles	0						        							        								Lizardite	68	Replacing olivine	Reticulate texture.	Bastite	26	Opx	Optically oriented pseudomorphs.	Carbonate	1	Veins	Locally shows radiate growth. Veins up to 0.1 mm wide.	Talc	<0.5	Opx	Oriented laminae parallel to original cleavage of opx replaced by talc.	Chrysotile	2	Veins	Fills subparallel veins which are up to 0.4 mm wide. These veins cross-cut narrower serpentine-magnetite veinlets.	Magnetite	1	Spinel	A small amount of magnetite also occurs in lizardite, irregularly disseminated very finely, in serpentine-magnetite veinlets, and as coarser (up to 0.1 mm) disseminated material in association with disseminated carbonate at the edge of the slide.									Deformation accompanying serpentinization limited - ?bending of bastites.	no	23.16658	-45.03217	0007.00	712	
109	670	A	003	Wash Core	01	019	020	003		0001		RIC	Altered glassy basalt with zeolite veins	Originally glassy, microlitic, partly spherulitic	From cuttings			Olivine	0   	3   	0.05-0.3  		Euhedral	Altered to zeolite (single and multi-grain aggregates).		    	     	          					    	   	          					    	    	          					    	    	          					Plagioclase	?	2-3	upto0.2		-	Microlites and microphenocrysts (replaced by zeolites).	Clinopyroxene(?)	-	4-15	upto0.2		-	Microlites are replaced by chlorite/smectite(?).	Glass(?)	0	-	-		-	Approximately 15% of the glass is devitrified to form 1-1.5 mm dark spherulites. Both glass and spherulites are altered to amphibole(?).																Vesicles	1	1		Laumontite(?)	Round	Completely filled with 0.1-0.2 mm zeolite crystals.	        							        								Clays	4	Cpx?	Greenish, moderately birefringent; chlorite/smectite(?).	Clays	1	Fractures	Some clay forms 10-15 microns coating on lava fragments and fills some fractures up to 15 microns thick.	Zeolites	30	Various	See above for fracture fillings. Also replaces microlites and microphenocrysts.	Actinolite	65	Groundmass	Identity uncertain.	Sulfide	trace	In zeolite veins	Chalcopyrite(?). Grains up to 20 microns.													Sequence of open space filling (any one or more may be absent): Very even 10-15 microns pale yellow-green clay (frequently absent). 2) Similarly even 10-30 microns zeolite (only locally present). 3) Fine-grained, almost isotropic zeolite with abundant inclusions. 4) Blocky, approximately 0.1-0.7 mm zeolite crystals with abundant inclusions and aggregates of type (1d) clay approximately 10-20 microns. This may also have a radiating appearance. with crystals up to 1 mm long stilbite(?). 5) Clear, blocky zeolite with at least two cleavages and complex twinning. Crystals up to 1 by 1.5 mm. Laumontite(?).	no	23.16658	-45.03217	0007.00	719	
109	670	A	004	Wash Core	01	019	021	003		0001		RIC	Harzburgite	Porphyroclastic	Massive peridotite	Medium to coarse		Olivine	35  	85  	0.04-0.20 	Fo91	Xenomorphic	Pseudomorphed by mesh texture serpentine plus magnetite. Original fragments grains ~0.8 mm.	Clinopyroxene	2   	3    	0.1-0.8   	Mg#=93	Round, elliptical	Smaller grains are fragmented. Larger grains round or elliptical. Rimmed and partially replaced by serpentine.	Spinel	1   	1  	0.4-0.18  	Cr#=50	Elliptical	10-90% replaced by magnetite plus ferritchromite.	Orthopyroxene	8   	11  	0.8-4.0   	En92	Round, elliptical	Replaced by talc plus tremolite plus serpentine.		    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Lizardite	44	Olivine	Box and mesh texture serpentine replacing olivine. Bastite pseudomorphing opx. Serpentine (chrysotile?) fills some veins.	Talc	3	Opx	Replaces opx and bastite pseudomorphs after opx.	Tremolite	trace	Opx	Thin fibrous crystals partially replace opx.	Magnetite	1	Spinel	Fills veins with serpentine.	Bastite	5	OPx	Pseudomorphs after opx.	Chrysotile	1	Veinlets	Transversal fibers.									Foliation defined by long axes of elliptical opx and spinel grains. Olivine and cpx exhibit undulatory extinction indicating that they are internally deformed. Cleavage traces in opx are gently bent.	no	23.16658	-45.03217	0026.30	2648	
109	670	A	005	Rotary	01	111	113	015		0001		HEB	Serpentinized dunite	Granoblastic to cataclastic	Plutonic intrusion	Medium		Olivine	-   	95  	1.5-2.8   		Hexagonal, cubic	Mesh texture of olivine pseudomorphs with outline of magnetite at prior margin.	Spinel	trace	1    	0.5       	Chromite	Granular irregular	Opaque. Almost totally replaced by magnetite forming agglomerated granules.	Orthopyroxene	-   	4  	1-2       		Elongated	Very contorted porphyroclasts (plastic and shear deformation).		    	    	          					    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Lizardite	78	Olivine	Mesh texture of olivine forming cubic to hexagonal pseudomorphs. Hourglass texture of amorphous core.	Magnetite	3	Olivine	As streaks cutting olivine pseudomorphs. Seams to be around olivine pseudomorphs or clouds at ancient spinel replacement.	Chrysotile	2	Lizardite	Colorless to pale brown. Transversal fibers cut to oblique shearing that transposes chrysotile into longitudinal fibers. (????)	Antigorite	10	Lizardite	Normal, flaky habit and interlocking habit. Essentially in shear zones with deformed chrysotile veinlets.	Talc	5	Serpentine	At outermost part of olivine pseudomorphs. Intimately associated with antigorite and/or tremolite in shear zones.	Tremolite	2	Antigorite	Colorless needles or fibers radiating from antigorite or chrysotile veinlets.									Sequence of events: 1) Serpentinization (lizardite plus magnetite); low temperature. 2) Talc; low/medium temperature (?). 3) Chrysotile, plus or minus magnetite (tensional cracks); low temperature. 4) Shear zones (Antigorite, plus or minus talc, plus or minus tremolite); low temperature, higher pressure. 5) Chrysotile, second generation.	no	23.16658	-45.03217	0045.20	4631	
109	670	A	005	Rotary	01	126	128	017		0001		RIC	Serpentinite	Reticulate, veined	Exterior end of pp/pm minicore			Olivine	0   	99(?)	?         		?		Spinel	<0.5	1    	0.5-1.5   	Chromian	Anhedral	Partially to nearly completely replaced by magnetite.		    	   	          					    	    	          					    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Lizardite	79	Olivine	Forms reticulate pattern, with more birefringent "strands" of network defining domains 0.2-0.5 mm wide.	Chrysotile	7	Veins	Veins are 0.2-0.5 mm wide. Chrysotile is in four larger veins. Shows a constant orientation at an average of 45 degrees to the subparallel vein walls. Walls of veins have magnetite concentrations, a pale band, in which the reticulate (SEE COMMENTS)	Magnetite	1	Veins	Concentrated along "chrysotile" vein walls, commonly penetrating along reticulate domain boundaries up to 1 mm either side of the veins.	Antigorite	8	Veins	Associated with chrysotile.	Sulfide(pyrite?)	trace		Rare grains observed associated with with magnetite in chysotile vein halo (approximately 20 microns in size).	Talc	4.5	Lizardite		Chlorite	trace	Antigorite						Chrysotile veins are sub-parallel within the slide, but form an oriented anastomizing network in the hand specimen. Chrysotile continued: reticulate structure is almost absent, may be developed. This band is up to 2 mm wide each side.	no	23.16658	-45.03217	0045.20	4646	
109	670	A	005	Rotary	02	052	054	007		0002		EIS	Serpentinized dunite	Porphyroblastic	Peridotite intrusion	Coarse porphyroblastic		Olivine	-   	>90 	1-3(?)    		Polygonal	Mesh texture of olivine pseudomorphs hexagonal with discrete outlines of magnetite.	Spinel	<0.5	3    	0.5-0.1   	Chromite	Irregular	Opaque, nearly totally replaced by magnetite.	Orthopyroxene	~1  	5-10	1-4       	Enstatite	Tabular	Highly deformed porphyroblasts.		    	    	          					    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Chlorite	2	Antigorite		Lizardite	72	Olivine	Mesh texture replacing olivine, sometimes forming opx pseudomorphs.	Magnetite	5	Opx, olivine. spinel	Outlines former olivine crystals. Concentrated in shear spinel zones and along cleavage planes of opx.	Talc	3	Opx	Surrounds and replaces opx and olivine.	Antigorite	15	Serpentine	Essentially in shear zones and tensional filaments and veinlets. Interlocking pattern.	Chrysotile	2	Serpentine	In veins.	Tremolites	trace	Antigorite							no	23.16658	-45.03217	0046.70	4722	
109	670	A	006	Rotary	01	004	006	001		0003		KOM	Clinopyroxene-bearing harzburgite	Porphyroclastic	Massive peridotite	Medium-coarse		Olivine	20  	85  	0.04-0.4  	Fo90	Anhedral	Undulatory extinction in olivine. Preserpentinization olivine fragments 0.4-1.2 mm in size.	Clinopyroxene	2   	2    	0.6-1.4   	Mg#92	Rounded	Contain exsolution lamellae of opx. Rims partially serpentinized.	Spinel	<1  	<1 	0.04-0.5  		Anhedral	Partially to completely replaced by magnetite.	Orthopyroxene	9   	12  	1.6-4.2   	En91	Round, slightly elongate	Oscillatory extinction. Gently bent cleavage traces.		    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Lizardite	64	Olivine	Mesh texture serpentine replacing olivine. Bastite pseudomorphs after opx.	Talc	4	Opx	Rims opx and surrounding serpentine.	Magnetite	1	Olivine	Partially replaces spinel. Magnetite plus serpentine replaces olivine.	Chrysotile	2	Lizardite		Bastite	2	Pyroxene	Pseudomorphs after pyroxene.													Slight to moderate granulation around opx porphyroblasts.	no	23.16658	-45.03217	0054.60	5463	
109	670	A	007	Rotary	01	043	045	007	A	0004		HEB	Serpentinite	Cataclastic after porphyroclastic harzburgite, multiple veined alteration assemblage	Plutonic intrusion	Fine		Olivine	-   	80  	1-2       		Polygonal	Mesh texture and hour-glass texture of lizardite with magnetite seam.	Spinel	trace	1    	1         	Hercynite, picotite	Subhedral	Almost totally altered to magnetite.	Orthopyroxene	-   	?  	-         		-	Now replaced by bastite which preserves the initial morphology and pophyroclastic texture.	Clinopyroxene	-   	?   	-         		-			    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Chlorite	10	Antigorite	Magnesium-rich (colorless) with anomalous copper to blue birefringence.	Tremolite	5	Antigorite	Acicular or fibrous in a radiate pattern. Growing at the expense of antigorite in or near deformed chrysotile veinlets.	Magnetite	5	Spinel	Fills veins and pockets and replaces granular spinel.	Lizardite	50	Olivine, opx	Pseudomorphs after olivine and pyroxene. Polygonal morphology of olivine recognized in a few places.	Antigorite	20	Lizardite	Plate ot flake-like interlocking texture. In shear planes, antigorite is parallel to the direction of the shear zone.	Chrysotile	10	Veinlets	Fills open tensional fractures that are deformed within shear planes and partially replaced by antigorite. Late-stage chrysotile veinlets cross cut the shear planes.									Sequence of events: 1) Lizardite plus magnetite after olivine. 2) Chrysotile in dilation fissures (fibrous). 3) Antigorite (in shear planes). 4) Chlorite plus tremolite (fibrous, prismatic) partially replace antigorites in lense-shaped shear planes. 5) Late stage open fissures filled by chrysotile.	no	23.16658	-45.03217	0064.00	6443	
109	670	A	009	Rotary	01	107	109	014		0006		GRO	Serpentinized peridotite	Cataclastic	Probable fault zone	Fine to coarse		Olivine	0   	90  	-         		-	Completely altered to serpentine and other metamorphic minerals.	Orthopyroxene	5   	10   	-         		-	Deformed, cataclastic. Surrounded by talc and serpentine rims. Cut by antigorite veins.	Clinopyroxene	?   	?  	-         		-		Spinel	?   	?   	-         		-			    	    	          					-	-	-	-		-																															Vesicles	0						        							        								Chlorite	30	Olivine	Intergrown with tremolite. Acicular, micron-sized crystals.	Tremolite	30	Olivine	Intergrown with chlorite. Acicular crystals, 10-20 microns wide.	Lizardite	9	Olivine	Lizardite patches.	Bastite	8	Olivine		Antigorite	12	Lizardite, in veins		Chrysotile	5	Lizardite	In veins up to 2 mm wide and 1 cm long.	Magnetite	1	Olivine(?)	Occurs with lizardite.					Primary minerals almost completely reacted by metamorphism. A few relict, cataclastized orthopyroxene porphyroclasts are surrounded by talc plus serpentine halos. Patchy areas of lizardite plus magnetite are surrounded by a reaction zone of tremolite plus chlorite, and cut by chrysotile veins. Some antigorite veins cut lizardite. Both the serpentine assemblage and the tremolite plus chlorite have been cataclastically deformed.	no	23.16658	-45.03217	0083.00	8407