Leg : 37 Top/Bottom Interval(mm): 460/ 480 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 217.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 220.47 Sect/Pc #: 3/PCE 5B
ROCK = OLIVINE SPARSELY PHYRIC BASALT
GROUNDMASS IS RAPIDLY QUENCHED;
Texture: INTERSERTAL,VARIOLITIC*
Phenocrysts- OLIVINE ( 1-5%)
Size(mm): TO 0.5 Morphology: SKELETAL
MICROPHENOCRYSTS AND GLOMEROPORPHYRITIC CLOTS OF
OL(WITH RARE PICOTITE) IN A PARTLY QUENCHED
INTERSERTAL GROUNDMASS CONTAINING ABUNDANT OL,SOME
PHENOS ARE SKELETAL-THEY DO NOT LOOK ACCUMULATIVE,
PHENOS REPLACED IN PART OF THE ROCK-OTHERS ARE
FRESH;
PICOTITE
RARE*
Groundmass - OLIVINE
ABUNDANT,SOME GROUNDMASS OL REPLACED BY SMEC IN
FRESHER PART OF THE ROCK;
PLAGIOCLASE
Morphology: SKELETAL
CLINOPYROXENE
Morphology: FIBROUS
AUGITE
GROUNDMASS HAS SOME WELL CRYSTALLIZED AUGITE +
PLAG SURROUNDED BY SKELETAL PLAG AND FIBROUS CPX;
ILMENITE
ID UNCERTAIN;
MAGNETITE
GLASS
DEVITRIFIED*
Alteration - CARBONATE
Location: VEINS
Replacing: GLASS
DEVITRIFIED;
SMECTITE
Location: GROUNDMASS Replacing: OL
OL REPLACED IN FRESHER PART;
SERPENTINITE
Replacing: OL PHENOS
ID UNCERTAIN-MINERAL IS NEARLY ISOTROPIC,COLORLESS
AND WITH A REFRACTIVE INDEX << CANADA BALSAM,IT IS
ONLY IN THE ALTERED PART OF THE SLIDE,CONTAINS NO
MAGN;
TALC
ID UNCERTAIN,IS NEAR THE CENTERS OF THE XTLS*
Vesicles -
Filling: SMEC,SILICA
ID OF SILICA UNCERTAIN-BROWN-INDEX OF REFRACTION
IS < CANADA BALSAM*
Leg : 37 Top/Bottom Interval(mm): 680/ 700 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 225.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 225.69 Sect/Pc #: 1/PCE 8
ROCK = OLIVINE MODERATELY PHYRIC BASALT
FRESH ROCK;
Texture: GLASSY,INTERSERTAL*
Phenocrysts- OLIVINE ( >5%)
Size(mm): TO 0.5 Morphology: SKELETAL
FRESH AND ALTERED,ABUNDANT PHENOCRYSTS AND
GLOMEROPORPHYRITIC CLOTS OF OL IN A QUENCHED
GROUNDMASS OF LONG SKELETAL PLAG LATHS AND FIBROUS
PYX SHEATHS,ONE SKELETAL OL XTL IS 1.5MM LONG*
Groundmass - GLASS
SOME FRESH GLASS FOR PROBE,BROWN COLOR;
OLIVINE
ABUNDANT;
PLAGIOCLASE
Morphology: SKELETAL,LATHS
LONG SKELETAL PLAG LATHS;
PYROXENE
Morphology: FIBROUS SHEATHS
CARBONATE
MINOR*
Vesicles -
Filling: CARB,GLASS
CARB IS MINOR*
Leg : 37 Top/Bottom Interval(mm): 170/ 190 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 225.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 226.68 Sect/Pc #: 2/PCE 2
ROCK = OLIVINE SPARSELY PHYRIC BASALT
NOT AN ACCUMULATIVE ROCK;
Texture: VARIOLITIC,INTERSERTAL*
Phenocrysts- OLIVINE
Size(mm): TO 0.5
PHENOS AND GLOMEROPORPHYRITIC CLOTS OF OL IN A
QUENCHED GROUNDMASS OF LONG SKELETAL PLAG AND
SHEAVES OF PYX,VERY SIMILAR TO CORES 1-3 + 2-1,
PHENOS ARE OFTEN SKELETAL,FRESH*
Groundmass - OLIVINE
ABUNDANT,FRESH;
PLAGIOCLASE
Morphology: SKELETAL
LONG SKELETAL PLAG;
PYROXENE
Morphology: SHEAVES
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
FAIR AMOUNT OF INTERSTITIAL SMEC*
Vesicles -
Filling: SMEC,GLASS
FAIR AMOUNT OF SMEC IN VESICLES*
Leg : 37 Top/Bottom Interval(mm): 50/ 80 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 244.00 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 244.07 Sect/Pc #: 1/PCE 1
ROCK = PLAG-CPX-OL PHYRIC BASALT
TOTAL PHENOS + CLOTS IS 5-10%,PHYRIC WITH
INDIVIDUAL MEGAPHENOS OF OL + AUGITE + PLAG AND
GLOMEROPORPHYRITIC CLOTS OF ALL THREE MINERALS;
Texture: INTERGRANULAR,INTERSERTAL*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): <0.5
FRESH,SOME TO 1.0MM;
AUGITE ( 1-5%)
Size(mm): <0.5
MOSTLY FRESH,SOME TO 1.0MM;
OLIVINE ( 1-5%)
Size(mm): <0.5
MOSTLY FRESH,SOME TO 1.0MM*
Groundmass - OLIVINE
Size(mm): 0.05-0.07
SOME ALTERATION TO SMEC + IDDINGS;
PLAGIOCLASE
Size(mm): 0.05-0.07
PYROXENE
Size(mm): 0.05-0.07
GLASS
OXIDIZED,DARK BROWN,GOOD FOR PROBE;
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: OL
IDDINGSITE
Location: GROUNDMASS Replacing: OL
TALC
Location: GROUNDMASS Replacing: OL
ID UNCERTAIN;
SMECTITE
Replacing: OL PHENOS
IDDINGSITE
Replacing: OL PHENOS
OTHER
Replacing: AUGITE PHENOS
BROWNISH ALTERATION OF AUGITE*
Vesicles -
Filling: SMEC
Leg : 37 Top/Bottom Interval(mm): 320/ 340 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 244.00 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 244.33 Sect/Pc #: 1/PCE 4
ROCK = PLAGIOCLASE SPARSELY PHYRIC BASALT;
Texture: SUBOPHITIC*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): TO 1.5
FRESH AND SOME ALTERED TO SERICITE*
Groundmass - OLIVINE
Size(mm): 0.2-0.3
MOSTLY ALTERED OR COMPLETELY REPLACED BY SMEC +
CARB;
PLAGIOCLASE
Size(mm): 0.2-0.3
PYROXENE
Size(mm): 0.2-0.3
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: OL
CARBONATE
Location: GROUNDMASS Replacing: OL
SERPENTINITE
Location: GROUNDMASS Replacing: OL
SERICITE
Replacing: PLAG PHENOS
Vesicles -
Filling: SMEC
BROWN*
Leg : 37 Top/Bottom Interval(mm): 620/ 640 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 244.00 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 244.63 Sect/Pc #: 1/PCE 7A
ROCK = PLAGIOCLASE PHYRIC BASALT;
Texture: SUBOPHITIC
FINE-GRAINED SUBOPHITIC GROUNDMASS*
Phenocrysts- PLAGIOCLASE (10-15%)
Size(mm): TO 2.0
FRESH,LARGE PHENOS AND GLOMEROPORPHYRITIC
AGGREGATES,SOME GLASS INCLUSIONS IN DELICATELY
OSCILLATORY ZONED PLAG*
Groundmass - OLIVINE
Size(mm): 0.1
RARE ALTERED OR REPLACED OL IN GROUNDMASS;
PLAGIOCLASE
Size(mm): 0.1
SOME SIMPLECTIC INTERGROWTHS OF PLAG + CPX;
PYROXENE
Size(mm): 0.1
SOME SIMPLECTIC INTERGROWTHS OF PLAG + CPX;
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
ID UNCERTAIN;
ZEOLITE
Replacing: GROUNDMASS
ID UNCERTAIN-GREEN FIBROUS-MODERATE BIREFRINGENCE*
Vesicles -
Filling: SMEC,CHLORITE,
Filling: SILICA
SMEC NEXT TO WALL-THEN SILICA,SMEC IS GREEN*
Leg : 37 Top/Bottom Interval(mm): 90/ 110 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 244.00 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 245.60 Sect/Pc #: 2/PCE 1
ROCK = APHYRIC BASALT;
Texture: SUBOPHITIC*
Phenocrysts- PLAGIOCLASE ( <1%)
ONE PHENO-0.3MM,ONE PHENO-1.0MM*
Groundmass - OLIVINE
Size(mm): <1.0
RARE-REPLACED BY SMEC;
PLAGIOCLASE
Size(mm): <1.0
SUBOPHITIC GROUNDMASS LIKE CORE 3-1-PCE 7A;
PYROXENE
Size(mm): <1.0
SUBOPHITIC GROUNDMASS LIKE CORE 3-1-PCE 7A;
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
GREEN,ABUNDANT*
Vesicles -
Filling: SMEC,CARB,GLASS
SMEC IS GREEN WITH MODERATE BIREFRINGENCE*
Leg : 37 Top/Bottom Interval(mm): 310/ 340 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 282.00 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 282.33 Sect/Pc #: 1/PCE 5
ROCK = PLAG-CPX-OL PHYRIC BASALT;
Texture: INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): TO 1.0
LARGE PHENOS,FRESH,ONE LARGE AND TWO SMALLER
GLOMEROPORPHYRITIC CLOTS OF INTERGROWN AUGITE AND
PLAG WITH MINOR OL + SPINEL;
AUGITE ( 1-5%)
Size(mm): TO 1.0
FRESH,SMALLER PHENOS,ONE LARGE AND TWO SMALLER
GLOMEROPORPHYRITIC CLOTS OF INTERGROWN AUGITE AND
PLAG WITH MINOR OL + SPINEL;
OLIVINE ( 1-5%)
Size(mm): TO 1.0
LARGE PHENOS AND GLOMEROPORPHYRITIC CLOTS,MINOR OL
ASSOCIATED WITH CLOTS OF PLAG + AUGITE + SPINEL;
SPINEL
MINOR-ASSOCIATED WITH CLOTS OF PLAG + AUGITE + OL*
Groundmass - PLAGIOCLASE
Size(mm): 0.09
LONG;
OLIVINE
Size(mm): 0.09
COMMON,MOSTLY FRESH;
PYROXENE
Morphology: EQUANT
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
Vesicles -
Filling: CARB,GLASS
Leg : 37 Top/Bottom Interval(mm): 1130/1150 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 282.00 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 283.14 Sect/Pc #: 1/PCE 16
ROCK = PLAG SPARSELY PHYRIC BASALT
PHYRIC WITH PLAG PHENOS AND CLOTS IN A TWO-STAGE
QUENCHED GROUNDMASS;
Texture: SUBOPHITIC,GLASSY*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): >0.5
SPARSE LARGE PLAG PHENOS AND CLOTS IN A TWO-STAGE
QUENCHED GROUNDMASS,ALTERED TO SERICITE*
Groundmass - OLIVINE
Size(mm): 0.2-0.3
COMMON,ALTERED,SIZE RANGE INCLUDES QUENCH XTLS;
PLAGIOCLASE
Size(mm): 0.2-0.3
SUBOPHITIC CLOTS OF PLAG + CPX SURROUNDED BY A
DEVITRIFIED MAT OF FIBROUS SMEC + SMALLER PLAG AND
PYX,SIZE RANGE INCLUDES QUENCH XTLS;
PYROXENE
Size(mm): 0.2-0.3
SUBOPHITIC CLOTS OF PLAG + CPX SURROUNDED BY A
DEVITRIFIED MAT OF FIBROUS SMEC + SMALLER PLAG AND
PYX,SIZE RANGE INCLUDES QUENCH XTLS;
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: OL,GLASS
SERPENTINITE
Location: GROUNDMASS Replacing: OL
FERROUS OXIDE
Location: GROUNDMASS Replacing: OL
SERICITE
Replacing: PLAG PHENOS
Vesicles -
Filling: SMEC
YELLOW*
Leg : 37 Top/Bottom Interval(mm): 570/ 590 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 282.00 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 284.08 Sect/Pc #: 2/PCE 8
ROCK = PLAGIOCLASE SPARSELY PHYRIC BASALT
PHENOS AND GLOMEROPORPHYRITIC CLOTS OF PLAG IN AN
INTERGRANULAR-SUBOPHITIC GROUNDMASS OF WIDELY
VARYING GRAIN SIZE,CONTINUOUS SLOWER QUENCH-THEN
TWO-STAGE GROUNDMASS;
Texture: INTERGRANULAR,SUBOPHITIC,VARIOLITIC*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): TO 1.5
PHENOS + GLOMEROPORPHYRITIC CLOTS IN AN
INTERGRANULAR-SUBOPHITIC GROUNDMASS OF WIDELY
VARYING GRAIN SIZE*
Groundmass - OLIVINE
Size(mm): 0.05-0.12
COMMON,SOME FRESH-SOME ALTERED TO SMEC;
PYROXENE
Size(mm): 0.05-0.12
SOME VARIOLITIC PYX;
PLAGIOCLASE
Size(mm): 0.05-0.12
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: OL
SERPENTINITE
Location: GROUNDMASS Replacing: OL
Vesicles -
Filling: SMEC,GLASS
YELLOW SMEC*
Leg : 37 Top/Bottom Interval(mm): 160/ 180 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 320.00 Rock Type: IGNEOUS
Core: 6 Sample Midpoint(m) : 320.17 Sect/Pc #: 1/PCE 2
ROCK = PLAGIOCLASE SPARSELY PHYRIC BASALT
TWO GENERATIONS OF MINERALS IN THE GROUNDMASS;
Texture: INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): TO 1.5
FRESH-SOME ALTERED TO SERICITE;
OLIVINE ( 0%)
NO OL SEEN ALTHOUGH SOME WAS REPORTED
MEGASCOPICALLY*
Groundmass - PLAGIOCLASE (30-50%)
Size(mm): 0.1-0.3
GROUNDMASS PLAG IS SURROUNDED BY A MUCH FINER
GROUNDMASS OF POORLY CRYSTALLIZED CPX + PLAG;
PYROXENE
Size(mm): 0.01-0.1
POORLY CRYSTALLIZED;
OLIVINE
Size(mm): 0.01-0.1
RARE,REPLACED-SOME OL SHAPES IN GROUNDMASS NOW
COMPOSED OF SMECTITE;
MAGNETITE
GLASS
SOME INTERSTITIAL GLASS FRESH FOR PROBE*
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: OL
SERICITE
Replacing: PLAG PHENOS
Leg : 37 Top/Bottom Interval(mm): 530/ 550 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 320.00 Rock Type: IGNEOUS
Core: 6 Sample Midpoint(m) : 322.04 Sect/Pc #: 2/PCE 6
ROCK = PLAG-CPX-OL PHYRIC BASALT
PHYRIC WITH LARGE AND ABUNDANT PHENOS OF PLAG + OL
+ AUGITE-TOTAL PHENOS IS ABOUT 10-15%;
Texture: INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 5-10%)
Size(mm): 1.2-2.0
LARGE FRESH AND ABUNDANT PHENOS,ZONING VERY SLIGHT
EXCEPT FOR RIM ON PLAG,SOME INTERGROWTH OF AUGITE
+ PLAG;
AUGITE ( TO 5%)
Size(mm): 1.2-2.0
LARGE FRESH AND ABUNDANT PHENOS-TEND TO BE RAGGED
OR EVEN ROUNDED AGAINST GROUNDMASS,SOME
INTERGROWTH OF AUGITE AND PLAG;
OLIVINE ( TO 5%)
Size(mm): 1.2-2.0
LARGE FRESH AND ABUNDANT PHENOS,ONE OL PHENO
COMPLETELY PSEUDOMORPHED BY SERP-OTHERS ARE
COMPLETELY FRESH*
Groundmass - OLIVINE
Size(mm): 0.07
ALTERED MAINLY TO SERPENTINE;
PLAGIOCLASE
Size(mm): 0.07 Morphology: LATHS
SOME LARGE PLAG LATHS INTERGROWN SUBOPHITICALLY
WITH AUGITE IN A FINE INTERGRANULAR GROUNDMASS;
PYROXENE
Size(mm): 0.07
AUGITE INTERGROWN SUBOPHITICALLY WITH LARG PLAG
LATHS IN A FINE INTERGRANULAR GROUNDMASS;
MAGNETITE
Alteration - SERPENTINITE
Location: GROUNDMASS Replacing: OL
SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
SERICITE
Replacing: PLAG PHENOS
Vesicles -
Filling: CARB,SILICA,
Filling: TALC
ID OF TALC UNCERTAIN*
Leg : 37 Top/Bottom Interval(mm): 920/ 940 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 320.00 Rock Type: IGNEOUS
Core: 6 Sample Midpoint(m) : 322.43 Sect/Pc #: 2/PCE 10
ROCK = PLAG-CPX-OL PHYRIC BASALT
PHYRIC WITH PHENOS OF PLAG + AUGITE + OL IN A VERY
FINE-GRAINED GROUNDMASS,NO GLOMEROPHYRIC CLOTS;
Texture: INTERGRANULAR,APHANITIC-CRYPTOCRYSTALLINE*
Phenocrysts- PLAGIOCLASE ( >5%)
Size(mm): <1.0-2.5
FRESH SINGLE PHENOS OF PLAG;
AUGITE ( 1-5%)
Size(mm): <1.0-2.5
SINGLE PHENOS,SOME EXSOLUTION AND CLAY ALTERATION;
OLIVINE ( >5%)
Size(mm): <1.0-2.5
SINGLE PHENOS,PARTLY ALTERED TO CARBONATE,SOME
ALTERED TO SERPENTINE AND IDDINGSITE;
PICOTITE
RARE*
Groundmass - PLAGIOCLASE
PART OF A VERY FINE-GRAINED APHANITIC GROUNDMASS
OF PLAG + CPX + MAGN;
PYROXENE
PART OF A VERY FINE-GRAINED APHANITIC GROUNDMASS
OF PLAG + CPX + MAGN;
MAGNETITE
PART OF A VERY FINE-GRAINED APHANITIC GROUNDMASS
OF PLAG + CPX + MAGN;
OLIVINE
MOSTLY ALTERED TO SERPENTINE + SAPONITE*
Alteration - CARBONATE
Location: INTERSTITIAL Replacing: GROUNDMASS
CARBONATE
Replacing: OL PHENOS
Vesicles -
Filling: CARB
Leg : 37 Top/Bottom Interval(mm): 660/ 0 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 358.00 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 360.16 Sect/Pc #: 2/PCE 10
ROCK = PLAG-OL PHYRIC BASALT
PHENOS OF PLAG(ABUNDANT) AND OL(SPARSE) IN A TWO-
STAGE QUENCHED GROUNDMASS;
Texture: INTERGRANULAR,GLASSY*
Phenocrysts- PLAGIOCLASE ( 10%)
Size(mm): TO 2.0
FRESH-SOME ALTERED TO SERICITE,PLAG PHENOS HAVE
GLASS INCLUSIONS,MOST XTLS ARE 0.05MM AND ARE IN A
FINER MAT OF POORLY CRYSTALLIZED CPX + PLAG;
OLIVINE ( 1-5%)
Size(mm): TO 0.8
FRESH SPARSE OL PHENOS*
Groundmass - OLIVINE
Size(mm): 0.05
OL IN GROUNDMASS COMMON BUT ALMOST ALL
PSEUDOMORPHED BY SERP AND CARB;
PLAGIOCLASE
Size(mm): 0.05
PART OF FINE MAT OF POORLY CRYSTALLIZED PLAG+CPX;
PYROXENE
Size(mm): 0.05
PART OF FINE MAT OF POORLY CRYSTALLIZED PLAG+CPX;
MAGNETITE
GLASS
FRESH GLASS,QUENCHED*
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: OL
CARBONATE
Location: GROUNDMASS Replacing: OL
SERPENTINITE
Location: GROUNDMASS Replacing: OL
SERICITE
Replacing: PLAG PHENOS
Leg : 37 Top/Bottom Interval(mm): 240/ 0 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 396.24 Sect/Pc #: 1/PCE 3
ROCK = PLAG-OL SPARSELY PHYRIC BASALT
PHYRIC WITH PLAG + OL(OL>PLAG) IN A FINE-GRAINED
INTERGRANULAR GROUNDMASS;
Texture: INTERGRANULAR*
Phenocrysts- OLIVINE ( <1%)
FRESH;
PLAGIOCLASE ( <1%)
FRESH*
Groundmass - OLIVINE
Size(mm): 0.02
COMMON,MOSTLY ALTERED TO SERP + IDDINGS;
PLAGIOCLASE
Size(mm): 0.02
PYROXENE
Size(mm): 0.02
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
IDDINGSITE
Location: GROUNDMASS Replacing: OL
SERPENTINITE
Location: GROUNDMASS Replacing: OL
Vesicles -
Filling: SMEC
YELLOW-GREEN*
Leg : 37 Top/Bottom Interval(mm): 910/ 940 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 396.93 Sect/Pc #: 1/PCE 12
ROCK = PLAG-OL SPARSELY PHYRIC BASALT
SPARSE PHENOS OF PLAG + LESS OL IN A TWO-STAGE
QUENCHED GROUNDMASS;
Texture: INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): TO 1.0 Morphology: LATHS
SOME FRESH,SOME ALTERED TO SERICITE;
OLIVINE ( 1-5%)
Size(mm): TO 1.0
LESS OL THAN PLAG*
Groundmass - OLIVINE
MOSTLY FRESH;
PLAGIOCLASE
Morphology: LATHS
IN A FINER MAT OF FIBROUS CPX + SMALL PLAG;
PYROXENE
SOME CPX TO 0.05MM IN A FINER MAT OF FIBROUS CPX +
SMALL PLAG;
MAGNETITE
GLASS
SOME FRESH GLASS FOR PROBE*
Alteration - SERICITE
Replacing: PLAG PHENOS
Vesicles -
Filling: CARB,GLASS
MINOR CARB*
Leg : 37 Top/Bottom Interval(mm): 920/ 0 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 398.42 Sect/Pc #: 2/PCE 12
ROCK = PLAG-CPX-OL PHYRIC BASALT
PHENOS OF PLAG + OL + AUGITE IN A FINE GRAINED
INTERGRANULAR TWO-STAGE QUENCH GROUNDMASS;
Texture: INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( >5%)
Size(mm): TO 1.5
SOME CLOTTED PLAG-MOST PHENOS ARE SINGLE;
OLIVINE ( 1-5%)
Size(mm): TO 1.5
NOT SEEN MEGASCOPICALLY,MOSTLY FRESH;
AUGITE ( 1-5%)
Size(mm): TO 1.5
NOT SEEN MEGASCOPICALLY,PYX PHENOS HAVE RAGGED
EDGES OR ROUNDED FORMS*
Groundmass - OLIVINE
Size(mm): 0.05-0.1
FRESH AND SERPENTINIZED,COMMON;
PLAGIOCLASE
Size(mm): 0.05-0.1
PYROXENE
Size(mm): 0.05-0.1
GLASS
ID UNCERTAIN-SOME FRESH GLASS(?);
MAGNETITE
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
SERPENTINITE
Location: GROUNDMASS Replacing: OL
Vesicles -
Filling: SMEC
LIGHT GREEN*
Leg : 37 Top/Bottom Interval(mm): 1110/1130 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 400.12 Sect/Pc #: 3/PCE 12
ROCK = PLAG-CPX-OL PHYRIC BASALT
PHENOS OF PLAG+AUGITE+OL(10-15% TOTAL) IN A FINE
INTERGRANULAR GROUNDMASS,MORE DEUTERIC ALTERATION
THAN IN ANY SAMPLE SEEN,ABUNDANT CARB IN SAMPLE;
Texture: INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 5-10%)
Size(mm): TO 1.5
ALTERED TO SERICITE + CARB + SMEC;
OLIVINE ( 1-5%)
Size(mm): TO 1.5
PARTLY ALTERED TO CARB + SMEC,ONE FRESH TWINNED
OLIVINE XTL;
AUGITE ( 1-5%)
Size(mm): TO 1.5
AUGITE PHENOS OFTEN SURROUNDING SMALLER PLAG,
ALTERED TO CLAYS THAT ARE BROWN ON THE SURFACE*
Groundmass - OLIVINE
Size(mm): 0.04
MOSTLY ALTERED TO OXIDIZED SMECTITE;
PLAGIOCLASE
Size(mm): 0.04
PYROXENE
Size(mm): 0.04
MAGNETITE
CARBONATE
ABUNDANT CARB AS ALTERATION*
Alteration - SMECTITE
Location: INTERSTITIAL, Replacing: OL,OL PHENOS,
Location: GROUNDMASS Replacing: PLAG PHENOS
GROUNDMASS MOSTLY ALTERED TO OXIDIZED SMEC;
CARBONATE
Location: GROUNDMASS Replacing: GROUNDMASS,OL PHENOS,
Replacing: PLAG PHENOS
SERPENTINITE
Location: GROUNDMASS Replacing: OL,OL PHENOS
IDDINGSITE
Location: GROUNDMASS Replacing: OL
CLAY MINERALS
Replacing: AUGITE PHENOS
SERICITE
Replacing: PLAG PHENOS
Vesicles -
Filling: CARB
Leg : 37 Top/Bottom Interval(mm): 1390/1410 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 400.40 Sect/Pc #: 3/PCE 15
ROCK = PLAGIOCLASE PHYRIC BASALT
FINE-GRAINED INTERGRANULAR TWO-STAGE QUENCH
GROUNDMASS;
Texture: INTERGRANULAR,VARIOLITIC*
Phenocrysts- PLAGIOCLASE ( 5-10%)
Size(mm): TO 1.0
PHENOS AND GLOMEROPORPHYRITIC CLOTS,SOME ALTERED
TO SERICITE*
Groundmass - OLIVINE
Size(mm): 0.02
ABUNDANT-COMPLETELY PSEUDOMORPHED BY SERP + SMEC;
PLAGIOCLASE
Size(mm): 0.02
PYROXENE
Size(mm): 0.02
MAGNETITE
GLASS
ID UNCERTAIN-SOME FRESH GLASS(?)*
Alteration - SERPENTINITE
Location: GROUNDMASS Replacing: OL
SMECTITE
Location: GROUNDMASS Replacing: OL
CARBONATE
Location: GROUNDMASS Replacing: GROUNDMASS
SERICITE
Replacing: PLAG PHENOS
Vesicles -
Filling: CARB,GLASS
CARB IS COMMON FILLING*
Leg : 37 Top/Bottom Interval(mm): 1180/1210 Describer: Robinson, P.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 403.20 Sect/Pc #: 5/PCE 12
ROCK = PLAG-CPX-OL MODERATELY PHYRIC BASALT;
Texture: SUBOPHITIC,INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( >5%)
Size(mm): 1.0-4.0
PHENOS HAVE CORRODED AND ROUNDED MARGINS,PHENOS
HAVE NARROW RIMS OF SODIC COMPOSITION,NEAR VEINS
PLAG IS CUT BY TINY VEINLETS OF CALCITE,PHENOS
HAVE A FEW DARK INCLUSIONS,CPX XTLS PARTLY
SURROUND PLAG LATHS ON MARGINS;
AUGITE ( 1-5%)
Size(mm): TO 1.0
FRESH,PHENOS HAVE CORRODED AND ROUNDED MARGINS,
2VZ 45,TWINNED,CPX XTLS PARTLY SURROUND PLAG
LATHS ON MARGINS;
OLIVINE ( 1%)
Size(mm): 0.5-1.0
ALTERED*
Groundmass - PLAGIOCLASE
Size(mm): 0.1-1.0
PYROXENE
Size(mm): 0.1-1.0
2VZ 45;
OPAQUE MINERALS ( 1-2%)
INCLUDES MAGN + ILMENITE*
Alteration - SMECTITE
Replacing: OL PHENOS,OL GROUNDMASS
SOME INTERSTITIAL SMECTITE;
CARBONATE
Replacing: OL PHENOS
FERROUS OXIDE
Replacing: OL PHENOS
OL PHENOS STAINED BY FE.OXIDES;
CARBONATE
Location: VEINS
NEAR VEINS PLAG PHENOS ARE CUT BY TINY VEINLETS OF
CALCITE*
Vesicles -
Size(mm): 0.5-0.6
Percent: 1
Filling: SMEC,CARB
SMEC NEXT TO WALL-THEN CARB*
Leg : 37 Top/Bottom Interval(mm): 1180/1210 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 396.00 Rock Type: IGNEOUS
Core: 8 Sample Midpoint(m) : 403.20 Sect/Pc #: 5/PCE 12
ROCK = PLAG-CPX-OL MODERATELY PHYRIC BASALT
PHENOS OF PLAG + AUGITE + OL;
Texture: SUBOPHITIC,INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( >5%)
Size(mm): TO 2.0
LARGE PHENOS AND CLOTS;
AUGITE ( 5%)
Size(mm): TO 2.0
LARGE PHENOS,RIMS ARE INTERGROWN WITH GROUNDMASS
PLAG;
OLIVINE ( 1-5%)
Size(mm): <2.0
SMALLER PHENOS(THAN PLAG AND AUGITE) COMPLETELY
PSEUDOMORPHED BY OXIDIZED SMEC*
Groundmass - OLIVINE
Size(mm): 0.2-0.3
COMPLETELY ALTERED TO SMEC + SERP + IDDINGS;
PLAGIOCLASE
Size(mm): 0.2-0.3
INTERGROWN WITH AUGITE PHENOCRYST RIMS;
PYROXENE
Size(mm): 0.2-0.3
MAGNETITE
Alteration - SMECTITE
Replacing: OL PHENOS,OL GROUNDMASS
OL PHENOS COMPLETELY PSEUDOMORPHED BY OXIDIZED
SMEC;
SERPENTINITE
Location: GROUNDMASS Replacing: OL
IDDINGSITE
Location: GROUNDMASS Replacing: OL
CARBONATE
Location: GROUNDMASS Replacing: GROUNDMASS
FERROUS OXIDE
Location: GROUNDMASS Replacing: GROUNDMASS
CARBONATE
Location: VEINS
Vesicles -
Filling: SMEC
Leg : 37 Top/Bottom Interval(mm): 570/ 0 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 434.00 Rock Type: IGNEOUS
Core: 9 Sample Midpoint(m) : 437.57 Sect/Pc #: 3/PCE 6
ROCK = PLAG SPARSELY PHYRIC BASALT;
Texture: SUBOPHITIC,INTERSERTAL*
Phenocrysts- PLAGIOCLASE ( 1-5%)
SPARSE LARGE PHENOS OCCUR SINGLY AND IN COMPLEX
CLOTS;
AUGITE ( <1%)
Groundmass - OLIVINE
COMPLETELY ALTERED;
PLAGIOCLASE
SOME SUBOPHITIC PLAG-CPX(ONE CLOT OF 0.2-0.3MM
XTLS) IN AN OTHERWISE INTERSERTAL GROUNDMASS;
PYROXENE
SOME SUBOPHITIC PLAG-CPX(ONE CLOT OF 0.2MM-0.3MM
XTLS) IN AN OTHERWISE INTERSERTAL GROUNDMASS;
GLASS
SOME GLASS MAY BE POSSIBLE TO ANALYZE,INTERSERTAL
GROUNDMASS GLASS IS REPLACED BY SMEC;
MAGNETITE
Vesicles -
Filling: SMEC,GLASS
SMEC IS LIGHT GREEN*
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS,GLASS
Leg : 37 Top/Bottom Interval(mm): 230/ 250 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 434.00 Rock Type: IGNEOUS
Core: 9 Sample Midpoint(m) : 438.74 Sect/Pc #: 4/PCE 3
ROCK = PLAG-OL MODERATELY PHYRIC BASALT;
Texture: SUBOPHITIC*
Phenocrysts- PLAGIOCLASE ( 5-10%)
Size(mm): TO 1.5
LARGE PHENOS IN A SUBOPHITIC GROUNDMASS;
OLIVINE ( <1%)
Size(mm): TO 1.5
LARGE PHENOS OF RARE OL PSEUDOMORPHED BY SMEC +
CARB IN A SUBOPHITIC GROUNDMASS*
Groundmass - OLIVINE
Size(mm): 0.1-0.2
COMPLETELY REPLACED BY SMEC + CARB;
PLAGIOCLASE
Size(mm): 0.1-0.2
PYROXENE
Size(mm): 0.1-0.2
MAGNETITE
Alteration - SMECTITE
Location: GROUNDMASS Replacing: OL
INTERSTITIALLY;
CARBONATE
Location: GROUNDMASS Replacing: OL
Vesicles -
Filling: SMEC
Leg : 37 Top/Bottom Interval(mm): 1030/1050 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 434.00 Rock Type: IGNEOUS
Core: 9 Sample Midpoint(m) : 439.54 Sect/Pc #: 4/PCE 11
ROCK = PLAG-OL SPARSELY PHYRIC BASALT
FAIRLY COARSE INTERGRANULAR-SUBOPHITIC GROUNDMASS;
Texture: INTERGRANULAR,SUBOPHITIC*
Phenocrysts- PLAGIOCLASE ( 1-5%)
Size(mm): TO 1.0
SPARSE PHENOS,FRESH-SOME ALTERED TO SERICITE;
OLIVINE ( <1%)
RARE OL PSEUDOMORPHED BY SMEC;
AUGITE ( 0%)
NO AUGITE PRESENT*
Groundmass - OLIVINE
SOME REPLACED BY SMEC*
Alteration - SMECTITE
Location: INTERSTITIAL Replacing: GROUNDMASS
EXTENSIVE INTERSTITIAL SMECTITE;
SMECTITE
Location: GROUNDMASS Replacing: OL
SOME GROUNDMASS OL REPLACED BY SMEC*
Vesicles -
Filling: SMEC
Leg : 37 Top/Bottom Interval(mm): 310/ 330 Describer: Robinson, P.
Hole: 333A Top of Core Depth(m) : 481.50 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 481.82 Sect/Pc #: 1/PCE 4B
ROCK = APHYRIC BASALT
SIMILAR TO CORE 10-3-PCE 16 EXCEPT FOR LACK OF
PHENOS-SAME GROUNDMASS + SAME TYPE OF ALTERATION;
Texture: INTERGRANULAR,VARIOLITIC
ONLY SLIGHTLY VARIOLITIC*
Groundmass - OLIVINE ( 5%)
Size(mm): 0.1-1.0
PLAGIOCLASE
PYROXENE
Size(mm): 0.1-1.0
2VZ 45;
OPAQUE MINERALS ( 1-2%)
INCLUDES MAGN + ILMENITE*
Alteration - SMECTITE
Location: INTERSTITIAL, Replacing: GROUNDMASS,OL
Location: VEINS
A FEW VEINLETS FILLED WITH SMEC*
Vesicles -
Filling: SMEC
WELL CRYSTALLIZED,BROWNISH-GREEN*
Leg : 37 Top/Bottom Interval(mm): 1250/1260 Describer: Robinson, P.
Hole: 333A Top of Core Depth(m) : 481.50 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 482.76 Sect/Pc #: 1/PCE 12
ROCK = PLAG-CPX-OL MODERATELY PHYRIC BASALT
SAME AS CORE 10-3-PCE 16;
Texture: SUBOPHITIC,INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 5-10%)
Size(mm): 2.0-3.0 Morphology: SUBHEDRAL
FRESH,APPROX COMP AN65(AT LEAST), XTL FORMS HAVE
CORRODED MARGINS,SHARP NARROW COMPOSITION RIM;
AUGITE ( 1-5%)
Size(mm): 1.0 Morphology: SUBHEDRAL
2VZ 45,FRESH,XTL FORMS HAVE CORRODED MARGINS,
SOME ROUNDING OF CPX AND SOME EMBAYMENTS OR
INTERGROWTHS WITH GROUNDMASS;
OLIVINE ( 1-5%)
Size(mm): 2.0
ALTERED*
Groundmass - OLIVINE
Size(mm): 0.1-1.0
PLAGIOCLASE
Size(mm): 0.1-1.0
PYROXENE
Size(mm): 0.1-1.0
OPAQUE MINERALS
INCLUDES ILMENITE + MAGN*
Alteration - SMECTITE
Location: GROUNDMASS, Replacing: OL PHENOS,OL GROUNDMASS
Location: INTERSTITIAL
Vesicles -
Filling: SMEC
BROWNISH-GREEN*
Leg : 37 Top/Bottom Interval(mm): 1250/1260 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 481.50 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 482.76 Sect/Pc #: 1/PCE 12
ROCK = PLAG MODERATELY PHYRIC BASALT;
Texture: INTERGRANULAR,SUBOPHITIC*
Phenocrysts- PLAGIOCLASE ( 10%)
Size(mm): TO 2.0
LARGE PHENOS;
AUGITE ( 1-5%)
Size(mm): TO 2.0
LESSER AUGITE THAN PLAG;
OLIVINE
PSEUDOMORPHED BY SERP*
Groundmass - OLIVINE
Size(mm): 0.1
REPLACED BY SERP-TALC OR SMEC;
PLAGIOCLASE
Size(mm): 0.1
PYROXENE
Size(mm): 0.1
MAGNETITE
Alteration - SERPENTINITE
Replacing: OL PHENOS,OL GROUNDMASS
SMECTITE
Location: GROUNDMASS, Replacing: OL
Location: INTERSTITIAL
TALC
Location: GROUNDMASS Replacing: OL
Vesicles -
Filling: SMEC
Leg : 37 Top/Bottom Interval(mm): 1060/1090 Describer: Robinson, P.
Hole: 333A Top of Core Depth(m) : 481.50 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 484.08 Sect/Pc #: 2/PCE 11
ROCK = PLAG-CPX-OL PHYRIC BASALT
SAME AS CORE 10-3#16 AND CORE 11-2#3A;
Texture: SUBOPHITIC,INTERGRANULAR*
Phenocrysts- PLAGIOCLASE ( 10%)
Size(mm): >0.5 Morphology: ANHEDRAL-SUBHEDRAL
PHENOS HAVE CORRODED MARGINS,SHARP COMPOSITIONAL
RIM,FRESH;
AUGITE ( 1-5%)
Size(mm): >0.5 Morphology: ANHEDRAL-SUBHEDRAL
PHENOS HAVE CORRODED MARGINS,FRESH,2VZ 45,SOME
TWINNING;
OLIVINE ( 1-5%)
Size(mm): >0.5
ALTERED*
Groundmass - OLIVINE ( 5-10%)
Size(mm): 0.1-1.0
PLAGIOCLASE
Size(mm): 0.1-1.0
APPROX COMP AN65 (AT LEAST);
PYROXENE
Size(mm): 0.1-1.0
2VZ 45;
OPAQUE MINERALS ( 2%)
INCLUDES MAGN + ILMENITE*
Alteration - SMECTITE
Location: INTERSTITIAL, Replacing: OL PHENOS,OL GROUNDMASS
Location: GROUNDMASS Replacing: OL
ONLY SLIGHT REPLACEMENT OF INTERSTITIAL MATERIAL*
Vesicles -
Filling: SMEC
Leg : 37 Top/Bottom Interval(mm): 650/ 680 Describer: Robinson, P.
Hole: 333A Top of Core Depth(m) : 481.50 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 485.17 Sect/Pc #: 3/PCE 16
ROCK = PLAG-OL PHYRIC BASALT
SAME AS CORE 11-2-30CM-32CM ONLY WITH SLIGHTLY
MORE OL PHENOS;
Texture: INTERGRANULAR,INTERSERTAL*
Phenocrysts- PLAGIOCLASE ( 10%)
Size(mm): TO 3.0
FRESH,CORRODED RIMS,NARROW SODIC RIM WITH SHARP
CONTACT,APPROX COMP AN60;
AUGITE ( 1-5%)
Size(mm): TO 0.6
FRESH,2VZ 50,OFTEN IN SMALL GLOMEROPORPHYRITIC
CLOTS WITH PLAG;
OLIVINE ( 1-5%)
Size(mm): TO 1.0
ALTERED*
Groundmass - OLIVINE ( 5-10%)
Size(mm): 0.1-1.0
REPLACED BY BROWN SMEC;
PLAGIOCLASE
Size(mm): 0.1-1.0
PYROXENE
Size(mm): 0.1-1.0
2VZ 40;
OPAQUE MINERALS ( 2%)
INCLUDES MAGN + ILMENITE*
Alteration - SMECTITE
Location: GROUNDMASS, Replacing: OL PHENOS,OL GROUNDMASS
Location: INTERSTITIAL
BROWN SMEC,ONLY SMALL AMOUNT OF INTERSTITIAL
MATERIAL REPLACED*
Vesicles -
Size(mm): TO 0.5
Percent: <1
Leg : 37 Top/Bottom Interval(mm): 700/ 0 Describer: Wright, T.
Hole: 333A Top of Core Depth(m) : 510.00 Rock Type: IGNEOUS
Core: 11 Sample Midpoint(m) : 510.70 Sect/Pc #: 1/PCE 5
ROCK = PLAG-CPX-OL PHYRIC BASALT;
Texture: INTERSERTAL*
Phenocrysts- PLAGIOCLASE ( >5%)
Size(mm): TO 1.5
SOME PHENOS HAVE RIMS OF DIFFERENT COMPOSITION;
AUGITE ( 1-5%)
Size(mm): TO 1.5
CPX PHENOS HAVE RIMS OF DIFFERENT COMPOSITION;
OLIVINE ( 1-5%)
Size(mm): TO 1.5
PSEUDOMORPHED BY SERP AND SMEC*
Groundmass - OLIVINE
Size(mm): 0.05
COMPLETELY PSEUDOMORPHED;
PLAGIOCLASE
Size(mm): 0.05
PYROXENE
MAGNETITE
GLASS
SOME FRESH GLASS FOR PROBE BUT MOSTLY REPLACED BY
SMEC*
Alteration - SMECTITE
Location: INTERSTITIAL, Replacing: OL PHENOS,GLASS
Location: GROUNDMASS
SERPENTINITE
Replacing: OL PHENOS
SMECTITE
Location: VEINS
Vesicles -
Filling: SMEC,GLASS
GLASS IS RARE*
Leg : 37 Top/Bottom Interval(mm): 300/ 320 Describer: Robinson, P.
Hole: 333A Top of Core Depth(m) : 510.00 Rock Type: IGNEOUS
Core: 11 Sample Midpoint(m) : 511.81 Sect/Pc #: 2/PCE 3A
ROCK = PLAG-CPX-OL MODERATELY PHYRIC BASALT;
Texture: INTERGRANULAR,SUBOPHITIC*
Phenocrysts- PLAGIOCLASE ( 10%)
Size(mm): 0.5-2.0 Morphology: EUHEDRAL-ROUNDED
PHENOS ARE CORRODED AND ALL HAVE NARROW SODIC
RIMS,FORMS A FEW SMALL GLOMEROPORPHYRITIC
AGGREGATES WITH CPX,APPROX COMP AN65(AT LEAST),XTLS
OFTEN WITHOUT SHARP BOUNDARY;
AUGITE ( 1%)
Size(mm): >0.5
FRESH,2VZ 45;
OLIVINE ( 1%)
Size(mm): >0.5
ALTERED TO BROWN SMEC*
Groundmass - OLIVINE ( 5-10%)
Size(mm): TO 0.1
REPLACED BY SMEC,AMOUNT PRESENT IS DIFFICULT-AT
LEAST 5-10%;
PLAGIOCLASE
Size(mm): 0.1-1.0
PYROXENE
Size(mm): 0.1-1.0
SECTOR ZONING IN CPX VERY PRONOUNCED,2VZ 45;
OPAQUE MINERALS ( 1-2%)
INCLUDES MAGN + ILMENITE*
Alteration - SMECTITE
Replacing: OL PHENOS
ID UNCERTAIN,BROWN SMEC(?);
SERPENTINITE
Replacing: OL PHENOS
ID UNCERTAIN;
SMECTITE
Location: GROUNDMASS
Vesicles -
Size(mm): 0.5-1.0
Percent: 2
Filling: SMEC
SMEC IS BROWN,A FEW VESICLES HAVE GLASSY MATERIAL*
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