Leg : 38 Top/Bottom Interval(mm): 730/ 750 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 361.74 Sect/Pc #: 2/
ROCK = OL-PLAG MOD PHYRIC BASALT
HIGHLY ALTERED(ALBITIZED,CHLORITIZED,
CARBONATIZED);
Texture: MOD PHYRIC,HYALO-OPHITIC,TRACHYTOID,GLASSY
CLEAR ALTERED GLASSY MAKES UP 30% OF TEXTURE*
Phenocrysts- OLIVINE ( 3%)
ALTERED;
PLAGIOCLASE ( 2%)
ALTERED*
Groundmass - OLIVINE ( 5%)
Size(mm): .01-1
PLAGIOCLASE ( 40%)
GLOMEROPHYRIC CLUSTERS;
PYROXENE ( 20%)
ID UNCERTAIN FOR PYX;
OPAQUE MINERALS ( 2%)
INCLUDES MAGN+ILMENITE*
Alteration - CHLORITE
Location: GROUNDMASS Replacing: PHENOS
ALBITE
Location: GROUNDMASS Replacing: PHENOS
CARBONATE
Location: GROUNDMASS Replacing: PHENOS
ZEOLITE
Location: GROUNDMASS Replacing: PHENOS
SPHENE
Location: GROUNDMASS Replacing: PHENOS
ID UNCERTAIN FOR SPHENE*
Vesicles -
Size(mm): .3
Percent: 2
Filling: CHLORITE+CARB+Z
Shape: EOLITE
Leg : 38 Top/Bottom Interval(mm): 900/ 930 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 361.92 Sect/Pc #: 2/PCE 2
ROCK = BASALTIC BRECCIA
ANGULAR FRAGMENTS OF CARBONATIZED ROCK(BASALT);
Leg : 38 Top/Bottom Interval(mm): 1080/1100 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 362.09 Sect/Pc #: 2/PCE 3
ROCK = TUFF BRECCIA
CALCITIZED TUFF BRECCIA WITH SMALL ANGULAR AND
ROUND FRAGMENTS OF BASALT,ZEOLITES,CHLORITE AND
PALAGONITE;
Leg : 38 Top/Bottom Interval(mm): 1420/1450 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 362.44 Sect/Pc #: 2/PCE 6
ROCK = BASALTIC BRECCIA
BRECCIA WITH COARSE FRAGMENTS OF BASALT AND
ROUND FRAGMENTS OF PALAGONITE AND XTLS OF PLAG;
Leg : 38 Top/Bottom Interval(mm): 180/ 210 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 362.70 Sect/Pc #: 3/PCE 3
ROCK = BASALTIC BRECCIA
SAME AS 14-2-73-75;
Leg : 38 Top/Bottom Interval(mm): 390/ 410 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 362.90 Sect/Pc #: 3/PCE 6
ROCK = BASALTIC BRECCIA
ANGULAR FRAGMENTS OF HYALOBASALT,ROUND GRAINS OF
PALAGONITE,CEMENTED BY CHLORITE,CALCITE AND
SMECTITE;
Leg : 38 Top/Bottom Interval(mm): 440/ 470 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 362.96 Sect/Pc #: 3/PCE 6
ROCK = BASALTIC BRECCIA
SAME AS 14-3-39-41;
Leg : 38 Top/Bottom Interval(mm): 840/ 870 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 363.36 Sect/Pc #: 3/PCE 12
ROCK = BASALTIC BRECCIA
ANGULAR AND ROUND FRAGMENTS OF HYALOBASALT,
CARBONATIZED BASALT,ISOTROPIC CLAYISH ROCK, BASALT
FRAGMENTS HAVE CHLORITE-SMECTITE-ZEOLITE EDGES
WITH A PALAGONITE CEMENT-ISOTROPIC ZEOLITE(?)-
CALCITE;
Leg : 38 Top/Bottom Interval(mm): 1350/1380 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 359.50 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 363.87 Sect/Pc #: 3/PCE 18
ROCK = BASALTIC BRECCIA
SAME AS 14-3-84-87, CEMENT IS CALCITIZED SANDY-
SILT WITH ROUND FRAGMENTS OF ISOTROPIC CLAY-FE-
PYRITE(?);
Leg : 38 Top/Bottom Interval(mm): 740/ 770 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: SEDIMENTARY
Core: 16 Sample Midpoint(m) : 379.26 Sect/Pc #: 1/PCE 1
ROCK = TUFF
CALCITIZED TUFF WITH SMALL PIECE OF CHLORITE-
ZEOLITE,VOLCANIC GLASS,BASALT WITH XTLS AND
ISOTROPIC CEMENT;
Leg : 38 Top/Bottom Interval(mm): 1120/1151 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 379.64 Sect/Pc #: 1/
ROCK = BASALT*
Groundmass - OLIVINE ( 3%)
PYROXENE ( 40%)
PLAGIOCLASE ( 42%)
IRON ORE ( 10%)
ALTERED GLASS ( 5%)
PLUS MESOSTASIS, % BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 1120/1170 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 379.65 Sect/Pc #: 1/PCE 6
ROCK = AUGITE-OL-PLAG MOD PHYRIC BASALT
DOLERITE-BASALT;
Texture: MOD PHYRIC,SUBOPHITIC,TRACHYTOID*
Phenocrysts- OLIVINE ( 1%)
ALTERED;
AUGITE ( 2%)
PLAGIOCLASE ( 1%)
Groundmass - OLIVINE ( 2%)
PLAGIOCLASE (40-50%)
Size(mm): .1-1
GLOMEROPHYRIC CLUSTERS;
ORTHOPYROXENE (40-50%)
Size(mm): .01-.1 Morphology: SUBHEDRAL+EUHEDRAL
WITH POIKILITIC PLAG;
OPAQUE MINERALS ( 5%)
INCLUDES MAGN+ILMENITE*
Leg : 38 Top/Bottom Interval(mm): 1140/1170 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 379.66 Sect/Pc #: 1/PCE 6
ROCK = AUGITE-OL-PLAG MOD PHYRIC BASALT
SAME AS 16-1-112-117;
Phenocrysts- PLAGIOCLASE
APPROX COMP AN72*
Leg : 38 Top/Bottom Interval(mm): 300/ 330 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 380.32 Sect/Pc #: 2/PCE 5
ROCK = BASALT;
Groundmass - MAGNETITE ( 6%)
PYROXENE
Size(mm): .01-.1
TWINNED ORTHOPYX WITH POIKILITIC PLAG;
PLAGIOCLASE
Size(mm): .1-1
GLOMEROPHYRIC CLUSTERS*
Leg : 38 Top/Bottom Interval(mm): 1150/1180 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 381.17 Sect/Pc #: 2/PCE 14
ROCK = BASALT
SAME AS 16-2-30-33(DOLERITE-BASALT) BUT WITH
ALBITE(?) IN AMYGDULES;
Leg : 38 Top/Bottom Interval(mm): 1340/1370 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 381.36 Sect/Pc #: 2/PCE 19
ROCK = BASALT
SIMILAR TO 16-2-115-118;
Texture: SUBOPHITIC,TRACHYTOID,GLASSY
WITH POIKILITIC PLAG*
FRESH,BROWN GLASSY MAKES UP 3% OF TEXTURE*
Groundmass - PLAGIOCLASE
Size(mm): .1-1
GLOMEROPHYRIC CLUSTERS;
ORTHOPYROXENE
Leg : 38 Top/Bottom Interval(mm): 130/ 161 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 381.65 Sect/Pc #: 3/
ROCK = BASALT*
Groundmass - OLIVINE ( TR%)
PYROXENE ( 40%)
PLAGIOCLASE ( 42%)
IRON ORE ( 8%)
ALTERED GLASS ( 10%)
PLUS MESOSTASIS, % BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 130/ 200 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 381.67 Sect/Pc #: 3/PCE 2
ROCK = PLAG-AUGITE SPARSELY PHYRIC BASALT
SAME AS 16-2-134-137 BUT MORE COARSE-GRAINED;
Texture: SPARSELY PHYRIC,GLASSY
ALTERED GLASSY MAKES UP 10% OF TEXTURE*
Phenocrysts- AUGITE ( 1%)
Size(mm): >.5
ALTERED;
PLAGIOCLASE ( 1%)
ALTERED*
Groundmass - PLAGIOCLASE (45-55%)
Morphology: ROUND
PYROXENE (40-45%)
GLOMEROPHYRIC OPX WITH POIKILITIC PLAG;
OPAQUE MINERALS ( 5%)
INCLUDES MAGN+ILMENITE*
Alteration - SMECTITE
Replacing: PHENOS
SMECTITE (15-20%)
Location: GROUNDMASS
Leg : 38 Top/Bottom Interval(mm): 450/ 470 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 381.96 Sect/Pc #: 3/PCE 5
ROCK = MOD PHYRIC BASALT
SAME AS 16-3-13-20;
Texture: MOD PHYRIC*
Phenocrysts- PHENOCRYSTS ( 2%)
Size(mm): >.5
PHENOCRYSTS ( 3%)
Size(mm): <.5
Groundmass - OPAQUE MINERALS ( 5%)
INCLUDES MAGN+ILMENITE;
PLAGIOCLASE
GLOMEROPHYRIC CLUSTERS;
PYROXENE
2V=70 DEG.,OPX ALTERED TO SMECTITE*
Alteration - AMPHIBOLE
Replacing: PHENOS
SMECTITE (15-20%)
Location: GROUNDMASS
Vesicles -
Size(mm): .3
Percent: 1
Filling: SMECTITE
Leg : 38 Top/Bottom Interval(mm): 490/ 510 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 382.00 Sect/Pc #: 3/PCE 5
ROCK = AUGITE-PLAG MOD PHYRIC BASALT
SAME AS 16-3-44-47;
Texture: SUBOPHITIC,TRACHYTOID,GLASSY
ALTERED GLASSY MAKES UP 5% OF TEXTURE*
Phenocrysts- AUGITE ( 3%)
ALTERED;
PLAGIOCLASE ( 2%)
ALTERED*
Groundmass - PLAGIOCLASE (45-50%)
PYROXENE (40-45%)
OPAQUE MINERALS ( 4%)
INCLUDES MAGN+ILMENITE*
Alteration - SMECTITE
Location: GROUNDMASS Replacing: PHENOS+GLASS
CARBONATE
Replacing: PHENOS
Leg : 38 Top/Bottom Interval(mm): 730/ 760 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 382.25 Sect/Pc #: 3/PCE 7
ROCK = OL SPARSELY PHYRIC BASALT
SIMILAR TO 16-3-49-51;
Texture: SPARSELY PHYRIC*
Phenocrysts- OLIVINE ( 2%)
ALTERED*
Groundmass - OPAQUE MINERALS ( 5%)
INCLUDES MAGN+ILMENITE;
PLAGIOCLASE
GLOMEROPHYRIC CLUSTERS,APPROX COMP LABRADORITE*
Vesicles -
Size(mm): .3
Percent: 0-1
Filling: SMECTITE+CARB
Leg : 38 Top/Bottom Interval(mm): 1010/1030 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 382.52 Sect/Pc #: 3/
ROCK = OL-PLAG MOD PHYRIC BASALT;
Texture: MOD PHYRIC,SUBOPHITIC,GLASSY
BROWN LIGHTLY ALTERED GLASSY MAKES UP 5% OF TEX*
Phenocrysts- OLIVINE ( 2%)
ALTERED;
PLAGIOCLASE ( 2%)
Groundmass - PLAGIOCLASE (40-50%)
Size(mm): .1-1
GLOMEROPHYRIC CLUSTERS,EXT.ANG. PERP. TO (010)=38
DEG.,APPROX COMP AN68-72;
PYROXENE (40-50%)
Size(mm): .01-0.5
POIKILITIC TO PLAG,2V=70-80-85 DEG,TWINNED AUGITE,
OPX=20%;
MAGNETITE ( 3-5%)
PYRITE ( 0-1%)
Alteration - SMECTITE
Replacing: PHENOS
CHLORITE
Replacing: PHENOS
Vesicles -
Size(mm): .5-.8
Percent: 1
Filling: CHLORITE+CARB
Leg : 38 Top/Bottom Interval(mm): 1470/1490 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 382.98 Sect/Pc #: 3/PCE 16
ROCK = OL-AUGITE-PLAG MOD PHYRIC BASALT
SAME AS 16-3-101-103;
Texture: MOD PHYRIC,SUBOPHITIC,TRACHYTOID,GLASSY
ALTERED GLASSY MAKES UP 5% OF TEXTURE*
Phenocrysts- OLIVINE ( 2%)
ALTERED;
AUGITE ( 2%)
ALTERED;
PLAGIOCLASE ( 2%)
Groundmass - PLAGIOCLASE
GLOMEROPHYRIC CLUSTERS,ZONED;
PYROXENE
2V=65-70 DEG.*
Alteration - SMECTITE
Replacing: PHENOS+GLASS
AMPHIBOLE
Replacing: PHENOS
Leg : 38 Top/Bottom Interval(mm): 1470/1491 Describer: Kharin, G.
Hole: 350 Top of Core Depth(m) : 378.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 382.98 Sect/Pc #: 3/
ROCK = BASALT*
Groundmass - OLIVINE ( 3%)
PYROXENE ( 35%)
PLAGIOCLASE ( 45%)
IRON ORE ( 10%)
ALTERED GLASS ( 7%)
PLUS MESOSTASIS, % BY MODAL ANALYSES*
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