Leg : 68 Top/Bottom Interval(mm): 90/ 100 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 264.10 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 264.19 Sect/Pc #: 1/PCE 1
ROCK = OL-PLAG-CPX MICROPHYRIC BASALT;
Texture: VARIOLITIC,MICROPHYRIC
GRADUAL CHANGE FROM BASALT GLASS W/ VARIOLES
AROUND PHENOS AND MICROLITES TO COMPLETELY
VARIOLITIZED GLASS;
Where sampled: PILLOW
SECTION THROUGH GLASSY PILLOW MARGIN INTO
INTERIOR*
Phenocrysts- OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL
REPLACED BY SMEC AND IN ONE CASE BY PYRITE;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,ACICULAR
LARGER PLAG PHENOS ARE GLOMEROCRYSTS W/ OR W/OUT
CPX,PLAG ZONALITY-LESS ANORTHITIC RIMS;
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,ACICULAR
CLINOPYROXENE ( 1-5%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
MOSTLY IN GLOMEROCRYSTS W/ PLAG ALTHOUGH THERE ARE
EUHEDRAL PHENOS*
Groundmass - PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .03-.1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE ( 5-10%)
Size(mm): .01-.03 Morphology: EUHEDRAL,ACICULAR
PERCENT IS FOR TOTAL PLAG IN SECTION;
SPHERULITIC MESOSTASIS ( >40%)
Alteration - PYRITE
Location: VESICLES, Replacing: OLIVINE
Location: CRACKS
SMECTITE
Location: VESICLES, Replacing: OLIVINE
Location: CRACKS
SMECTITE DIFFERS IN COLOR FROM OLIVE-BROWN TO
OLIVE-GREEN AND GREEN,PARTS OF SMECTITE VEINS (UP
TO 0.15MM ACROSS) OR THEIR BORDER ZONE ARE FILLED
LOCALLY W/ PYRITE,PALE BROWN SMECTITE (ALMOST
COLORLESS IN THIN-SECTION) LOOKS LIKE PALAG-IT IS
IN THIN VEINS AND RIMS IN GLASS*
Vesicles -
Filling: PYRITE,SMEC
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 1200/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 264.10 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 265.30 Sect/Pc #: 1/PCE 16
ROCK = PLAG-OL MOD PHYRIC BASALT;
Texture: MICROPHYRIC,RADIATE;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE
Size(mm): .3-1 Morphology: ANHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: ANHEDRAL
PERCENT IS FOR TOTAL OL REPORTED IN SECTION*
PERCENT IS FOR TOTAL PLAG IN SECTION,PLAG ZONALITY
-LESS ANORTHITIC RIMS;
PERCENT IS FOR TOTAL CPX IN SECTION,MESOSTASIS IS
HOLOCRYSTALLINE W/ RADIATING CPX AND SKELETAL
TI-MT AND SMALL EUHEDRAL OL;
Groundmass - CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL,FAN,BOW-TIE
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,FAN,BOW-TIE
CLINOPYROXENE (20-40%)
Size(mm): .03-.1 Morphology: SUBHEDRAL,FAN,BOW-TIE
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE (20-40%)
Size(mm): .1-.3 Morphology: EUHEDRAL,ACICULAR
TITANOMAGNETITE (1-5 %)
Size(mm): .03-.1
Alteration - CELADONITE ( 1-5%)
Location: CRACKS,VEINS Replacing: OL
Location: VESICLES
SMECTITE ( .5-1%)
Location: CRACKS,
Location: VESICLES
PYRITE ( TR%)
Location: VESICLES
FERROUS HYDROX MINS ( TR%)
Location: CRACKS,VEINS Replacing: OL
Location: VESICLES
OXIDATION DEVELOPED ALONG CRACKS,NEAR CRACKS
(SEVERAL MM) HYDROXIDES REPLACED THE SMEC*
Vesicles -
Size(mm): .1-.3
Percent: .5-1
Location: CORES,RIMS
Filling: CELADON,SMEC,
Shape: ROUND
Filling: FE.HYDRX,PYRITE
FE OXIDES AND RED CELADONITE IN CORES OF VESICLES,
BRIGHT GREEN CELADON FILLS WHOLE VESICLES OR
OUTER RIMS,PALE BROWN OR BROWN SMECTITE FILLS SOME
CORES OF THE VESICLES*
Leg : 68 Top/Bottom Interval(mm): 740/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 264.10 Rock Type: IGNEOUS
Core: 10 Sample Midpoint(m) : 266.34 Sect/Pc #: 2/PCE 30
ROCK = OL MOD MICROPHYRIC BASALT
SAME AS 10-1-120,OXIDATION DEVELOPED IN NARROW
ZONES,IT IS REPRESENTED BY APPEARANCE OF BRIGHT
BROWN CELADONITES IN CORES OF VESICLES AND
INTERIOR PARTS OF OL PSEUDOMORPHS;
Texture: MICROPHYRIC,RADIATE;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL OL*
Groundmass - PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE (20-40%)
Size(mm): .1-.3 Morphology: EUHEDRAL,ACICULAR
PERCENT IS FOR TOTAL PLAG,APPROX COMP BYTOWNITE,
NORMALLY ZONED;
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL,FAN,BOW-TIE
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,FAN,BOW-TIE
CLINOPYROXENE (20-40%)
Size(mm): .03-.1 Morphology: SUBHEDRAL,FAN,BOW-TIE
TITANOMAGNETITE ( 5-10%)
Size(mm): .03-.1
Alteration - CELADON
Location: CRACKS+ Replacing: OL
Location: VESICLES
FERROUS HYDROX MINS
Location: CRACKS+ Replacing: OL
Location: VESICLES
Vesicles -
Size(mm): .1-.3
Percent: .5-1
Filling: CELADONITE
Leg : 68 Top/Bottom Interval(mm): 850/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 267.30 Rock Type: IGNEOUS
Core: 11 Sample Midpoint(m) : 268.15 Sect/Pc #: 1/PCE 49
ROCK = APHYRIC BASALT
ZONES-1)GLASS PARTLY PALAGONITIZED,PALAGONITE
REPLACED BY SMEC,2)VARIOLITIC GLASS,3)VARIOLITIC
DEVITRIFIED BASALT;
Texture: APHYRIC,VARIOLITIC;
Where sampled: PILLOW RIM*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL OL;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE ( 5-10%)
Size(mm): .1-.3 Morphology: EUHEDRAL,ACICULAR
PERCENT IS FOR TOTAL PLAG,NORMALLY ZONED;
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL
CLINOPYROXENE ( 5-10%)
Size(mm): .03-.1 Morphology: SUBHEDRAL
PERCENT IS FOR TOTAL CPX;
GLASS (20-40%)
SPHERULITIC MESOSTASIS ( >40%)
TITANOMAGNETITE ( 1-5%)
Alteration - CELADON ( 5-10%)
Location: CRACKS+ Replacing: OL
Location: VESICLES
SMECTITE
Replacing: PALAG
PALAGONITE ( 5-10%)
Replacing: GLASS
Vesicles -
Percent: .5-1
Filling: CELADON+FE.OX+
Shape: ROUND
Filling: MN.OXIDES
SOME VESICLES HAVE CORES WITH HYDROXIDES OF FE-
MN?*
Leg : 68 Top/Bottom Interval(mm): 870/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 267.30 Rock Type: IGNEOUS
Core: 11 Sample Midpoint(m) : 269.67 Sect/Pc #: 2/PCE 67
ROCK = OL SPARSELY MICROPHYRIC BASALT
MESOSTASIS PARTLY RADIATED,HOLOXTLLINE;
Texture: SPARSELY PHYRIC*
Phenocrysts- OLIVINE
Size(mm): .01-.03 Morphology: EUHEDRAL
OLIVINE
Size(mm): .03-.1 Morphology: EUHEDRAL
OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL
OLIVINE ( .5-1%)
Size(mm): .3-1 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL OL*
Groundmass - PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .03-.1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE ( 50%)
Size(mm): .01-.03 Morphology: EUHEDRAL,ACICULAR
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL
CLINOPYROXENE
Size(mm): .03-.1 Morphology: SUBHEDRAL
CLINOPYROXENE (20-40%)
Size(mm): .01-.03 Morphology: SUBHEDRAL
PERCENT IS FOR TOTAL CPX;
TITANOMAGNETITE
Size(mm): .1-.3
TITANOMAGNETITE ( 5-10%)
Size(mm): .03-.1
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - CELADON
Location: VESICLES+ Replacing: OL
Location: CRACKS
FE AND MN OXIDES CONTAMINATE CELADONITE IN ZONES
NEAR CRACKS;
SMECTITE
Location: VESICLES+ Replacing: OL
Location: CRACKS
Vesicles -
Size(mm): .3-1
Filling: CELADON,SMEC
FILLINGS OF VESICLES ARE CONCENTRIC,SOME OF CORES
OF FILLINGS ARE OLIVE-BROWN SMEC,CELADONITE IS IN
THE RIMS OR FILLS THE WHOLE VESICLE*
Leg : 68 Top/Bottom Interval(mm): 590/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 273.10 Rock Type: IGNEOUS
Core: 12 Sample Midpoint(m) : 273.69 Sect/Pc #: 1/PCE 95
ROCK = APHYRIC BASALT
Texture: APHYRIC,VARIOLITIC*
Groundmass - OLIVINE ( 1-5%)
Size(mm): .3-1
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( 5-10%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE ( 1-5%)
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
SPHERULITIC MESOSTASIS ( 90%)
TITANOMAGNETITE
Size(mm): .1-.3 Morphology: SKELETAL
TITANOMAGNETITE ( 1-5%)
Size(mm): .03-.1 Morphology: SKELETAL
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - CELADON
Replacing: OL
SMECTITE
Replacing: OL
YELLOW SMECTITE IN OL PSEUDOMORPHS IN PART OF THE
SECTION,THE OTHER PART CONTAINS GREEN CELADONITE
BOTH IN PSEUDOMORPHS AND VESICLES, SOME OF
MATERIAL OXIDIZED(BRIGHT BROWN CELADONITE)*
Vesicles -
Percent: .5-1
Filling: CELADONITE
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 740/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 273.10 Rock Type: IGNEOUS
Core: 12 Sample Midpoint(m) : 273.84 Sect/Pc #: 1/PCE 96
ROCK = APHYRIC BASALT
Texture: APHYRIC,VARIOLITIC;
Where sampled: PILLOW RIM-PILLOW INTERIOR*
Groundmass - OLIVINE ( .5-1%)
Size(mm): .3-1 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL O6;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,ACICULAR
PLAGIOCLASE ( 5-10%)
Size(mm): .1-.3 Morphology: EUHEDRAL,ACICULAR
PERCENT IS FOR TOTAL PLAG,NORMALLY ZONED;
CLINOPYROXENE
Morphology: EUHEDRAL,ANHEDRAL
CLINOPYROXENE
Morphology: EUHEDRAL,ANHEDRAL
CLINOPYROXENE ( 1-5%)
Morphology: EUHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL CPX;
TITANOMAGNETITE ( 1-5%)
SPHERULITIC MESOSTASIS ( >70%)
GRADUAL CHANGING IN MESOSTASIS FROM VARIOLITIC
GLASS TO DEVITRIFIED*
Vesicles -
Size(mm): .03-.1
Percent: .5-1
Filling: SMEC,CELADON
Shape: ROUND
VESICLES ARE FILLED(CRACKS,TOO)IN GLASSY PART WITH
OLIVE GREEN SMECTITE,IN DEVITRIFIED PART THE
FILLING CONSISTS OF GREEN CELADONITE*
Leg : 68 Top/Bottom Interval(mm): 1290/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 273.10 Rock Type: IGNEOUS
Core: 12 Sample Midpoint(m) : 274.39 Sect/Pc #: 1/PCE 103
ROCK = APHYRIC BASALT;
Texture: APHYRIC,VARIOLITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL OL;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE (10-20%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE ( .5-1%)
Size(mm): .1-.3 Morphology: SUBHEDRAL
SPHERULITIC MESOSTASIS (70-80%)
TITANOMAGNETITE ( 1-5%)
Vesicles -
Size(mm): .1-.3
Percent: TR
Filling: SMEC,CELADON
Shape: ROUND
PART OF CELADONITE VESICLES AND PSEUDOMORPHS AFTER
OL OXIDIZED,HAVE BRIGHT BROWN COLOR INSTEAD OF
GREEN*
Leg : 68 Top/Bottom Interval(mm): 760/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 273.10 Rock Type: IGNEOUS
Core: 12 Sample Midpoint(m) : 275.36 Sect/Pc #: 2/PCE 115
ROCK = APHYRIC DOLERITE;
Texture: APHYRIC,OPHITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL OL;
PLAGIOCLASE
Size(mm): 3-10 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( 50%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG,RARE MEGACRYSTS OF PLAG
(GLOMEROCRYSTS)WITH ABUNDANT GLASS INCLUSIONS;
CLINOPYROXENE
Size(mm): .3-1 Morphology: ANHEDRAL,SUBHEDRAL
CLINOPYROXENE ( >40%)
Size(mm): .1-.3 Morphology: ANHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL CPX;
TITANOMAGNETITE ( 5-10%)
Size(mm): .1-.3
Alteration - CELADON
Location: VESICLES Replacing: OL
GREEN CELADONITE LOCALLY IS REPLACED BY BRIGHT
BROWN MATERIAL(OXIDATION)*
Vesicles -
Size(mm): .1-.3
Filling: ARAGONITE
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 470/ 0 Describer: Cann, J.
Hole: 501 Top of Core Depth(m) : 280.10 Rock Type: IGNEOUS
Core: 13 Sample Midpoint(m) : 280.57 Sect/Pc #: 1/PCE 122
ROCK = APHYRIC BASALT
A GOOD HOLOXTLLINE BASALT,SOMEWHAT ALTERED,BUT NOT
EXTENSIVELY SO,WELL-DEVELOPED PATCHES OF
THOLEIITIC MESOSTASIS;
Texture: APHYRIC,HOLOXTLLINE
HOLOXTLLINE FLOW INTERIOR,SUBOPHITIC PYX-PLAG
RELATIONSHIP,TI-MAGN ASSOCIATED WITH MESOSTASIS;
Where sampled: MASSIVE FLOW*
Groundmass - OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: GRANULAR
PLAGIOCLASE
Size(mm): .3-1 Morphology: SUBHEDRAL
PLAGIOCLASE
Size(mm): .1-.3 Morphology: SUBHEDRAL
PLAGIOCLASE ( 50%)
Size(mm): .03-.1 Morphology: SUBHEDRAL
PERCENT IS FOR TOTAL PLAG,APPROX COMP AN50-70;
PLAGIOCLASE ( 1-5%)
Size(mm): 1-3 Morphology: SUBHEDRAL
MEGACRYSTS,NO GOOD SECTION FOR APPROX COMP;
CLINOPYROXENE
Size(mm): .3-1 Morphology: ANHEDRAL
CLINOPYROXENE (20-40%)
Size(mm): .1-.3 Morphology: ANHEDRAL
TITANOMAGNETITE
Size(mm): .1-.3 Morphology: EUHEDRAL-SKELETAL
TITANOMAGNETITE ( 5-10%)
Size(mm): .03-.1 Morphology: EUHEDRAL-SKELETAL
TI-MAGN OPTICALLY HOMOGENEOUS AND ISOTROPIC;
MESOSTASIS (10-20%)
Size(mm): .004 Morphology: INTERSTITIAL
PYRITE FORMS GRAINS IN MESOSTASIS PATCHES-LATE
MAGMATIC,APPARENTLY*
Alteration - SMECTITE ( 5-10%)
Replacing: OL,MESOSTASIS
FIBROUS*
Vesicles -
Percent: .5-1
Filling: SMECTITE
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 1470/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 280.10 Rock Type: IGNEOUS
Core: 13 Sample Midpoint(m) : 281.57 Sect/Pc #: 1/PCE 134
ROCK = APHYRIC DOLERITE;
Texture: APHYRIC,OPHITIC*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL,NO FRESH OL;
PLAGIOCLASE ( 50%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
CLINOPYROXENE (20-40%)
Size(mm): .3-1 Morphology: ANHEDRAL,SUBHEDRAL
TITANOMAGNETITE ( 1-5%)
Size(mm): .1-.3 Morphology: SKELETAL
Alteration - CELADON
Replacing: OL
SMECTITE
Replacing: OL
OXIDES
Replacing: OL
Vesicles -
Size(mm): .3-1
Shape: ROUND
Size(mm): .1-.3
Percent: .5-1
Filling: CELADON,SMEC,
Shape: ROUND
Filling: OXIDES
PERCENT AND FILLING ARE FOR ALL VESICLES,CENTRAL
PARTS OF VESICLES(AND OL PSEUDOS)FILLED LOCALLY
WITH LIGHT BROWN SMEC AND/OR OXIDES,SOME OF
FILLINGS OXIDIZED*
Leg : 68 Top/Bottom Interval(mm): 1120/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 280.10 Rock Type: IGNEOUS
Core: 13 Sample Midpoint(m) : 282.72 Sect/Pc #: 2/PCE 144
ROCK = APHYRIC DOLERITE;
Texture: APHYRIC,OPHITIC*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL,OL COMPLETELY CONVERTED
INTO CELADONITE AND/OR SMECTITE;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( 50%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE (20-40%)
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
TITANOMAGNETITE ( 1-5%)
Size(mm): .1-.3 Morphology: SKELETAL
Alteration - CELADON
Location: VESICLES Replacing: OL
SMECTITE
Location: VESICLES Replacing: OL
SMEC IS MAINLY IN CENTRAL PARTS OF SOME VESICLES
OR OL PSEUDOMORPHS*
Vesicles -
Size(mm): .1-.3
Percent: .5-1
Filling: CELADON,SMEC
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 610/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 283.10 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 283.71 Sect/Pc #: 1/PCE 152
ROCK = APHYRIC DOLERITE;
Texture: APHYRIC,DOLERITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE ( 5-10%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( >40%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE (20-40%)
Size(mm): .03-.1 Morphology: SUBHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL CPX;
TITANOMAGNETITE ( 1-5%)
Size(mm): .03-.1 Morphology: SKELETAL
Alteration - SMECTITE
Location: VESICLES Replacing: OL
OLIVE GREEN*
Vesicles -
Size(mm): .1-.3
Percent: .5-1
Filling: SMEC
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 1180/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 283.10 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 285.78 Sect/Pc #: 2/PCE 170
ROCK = APHYRIC BASALT;
Texture: APHYRIC,DOLERITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE ( 5-10%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( >40%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE (20-40%)
Size(mm): .03-.1 Morphology: SUBHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL CPX;
TITANOMAGNETITE
Size(mm): .03-.1 Morphology: SKELETAL
Alteration - SMECTITE
Location: VESICLES Replacing: OL
OLIVE GREEN*
Vesicles -
Size(mm): .1-.3
Percent: .5-1
Filling: SMEC
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 1460/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 283.10 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 286.06 Sect/Pc #: 2/PCE 175
ROCK = PLAG-OL-CPX PHYRIC BASALT;
Texture: PHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE ( .5-1%)
Size(mm): .3-1 Morphology: EUHEDRAL
CLINOPYROXENE ( .5-1%)
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
PYROXENE PHENOS ONLY IN GLOMEROCRYSTS WITH PLAG*
Groundmass - PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE (10-20%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION,NORMALLY
ZONED;
SPHERULITIC MESOSTASIS ( 80%)
TITANOMAGNETITE
Size(mm): .03-.1
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - CELADON ( 1-5%)
Location: VESICLES Replacing: OL
BRIGHT GREEN OR BRIGHT BROWN,THE LATTER MOSTLY IN
CENTRAL PARTS;
HYDROXIDE ( TR%)
Location: VESICLES
PYRITE ( TR%)
Vesicles -
Percent: .5-1
Filling: CELADON
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 1350/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 283.10 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 287.45 Sect/Pc #: 3/PCE 188
ROCK = PLAG-OL MOD PHYRIC BASALT;
Texture: MOD PHYRIC,VARIOLITIC;
Where sampled: PILLOW RIM*
Phenocrysts- OLIVINE ( 1-5%)
Size(mm): .3-1 Morphology: EUHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - PLAGIOCLASE (10-20%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION NORMALLY
ZONED;
SPHERULITIC MESOSTASIS ( 80%)
TITANOMAGNETITE ( TR%)
OTHER ( .5-1%)
Morphology: EUHEDRAL
CR-SPINEL*
Alteration - SMECTITE
Replacing: OL
COLORLESS;
FERROUS OXIDE
Replacing: OL
Leg : 68 Top/Bottom Interval(mm): 210/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 283.10 Rock Type: IGNEOUS
Core: 14 Sample Midpoint(m) : 287.81 Sect/Pc #: 4/PCE 191
ROCK = PLAG-OL MOD PHYRIC BASALT;
Texture: MOD PHYRIC*
Phenocrysts- OLIVINE ( .5-1%)
Size(mm): .3-1 Morphology: EUHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE (10-20%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION*
Groundmass - SPHERULITIC MESOSTASIS ( 80%)
TITANOMAGNETITE ( TR%)
Size(mm): .03-.1 Morphology: SKELETAL
OTHER ( TR%)
Size(mm): .1-.3 Morphology: EUHEDRAL
CR-SPINEL;
CLINOPYROXENE ( 0%)
Alteration - SMECTITE
Replacing: OL
ALMOST COLORLESS*
Vesicles -
Percent: 0
Leg : 68 Top/Bottom Interval(mm): 180/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 292.10 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 296.78 Sect/Pc #: 4/PCE 252
ROCK = PLAG-OL MOD PHYRIC BASALT
CONTACT BETWEEN GLASSY AND VARIOLITIC PARTS,IN
GLASSY PART THERE ARE PHENOS OF FRESH OL AND PLAG;
Texture: MOD PHYRIC,VARIOLITIC,INTERSERTAL;
Where sampled: PILLOW RIM*
Phenocrysts- OLIVINE ( 1-5%)
Size(mm): .3-1 Morphology: EUHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL
Groundmass - PLAGIOCLASE (10-20%)
Size(mm): .3-1 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE ( 0%)
SPHERULITIC MESOSTASIS ( 90%)
OTHER ( TR%)
Size(mm): .3-1
CR-SPINEL;
TITANOMAGNETITE
Size(mm): .03-.1
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - SMECTITE
Replacing: OL
ALMOST COLORLESS*
Vesicles -
Percent: 0
Leg : 68 Top/Bottom Interval(mm): 1180/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 301.10 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 302.28 Sect/Pc #: 1/PCE 274
ROCK = PLAG-OL MOD PHYRIC BASALT;
Texture: MOD PHYRIC;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 1-5%)
Size(mm): .3-1 Morphology: EUHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( 50%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE
Size(mm): .03-.1 Morphology: FAN
CLINOPYROXENE (20-40%)
Size(mm): .01-.03 Morphology: FAN
PERCENT IS FOR TOTAL CPX;
TITANOMAGNETITE
Size(mm): .03-.1 Morphology: SKELETAL
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03 Morphology: SKELETAL
PERCENT IS FOR TOTAL TITANO-MAGN;
OTHER ( TR%)
Size(mm): .1-.3 Morphology: EUHEDRAL
CR-SPINEL*
Alteration - SMECTITE
Replacing: OL
IN OXIDIZED ZONE INSTEAD OF COLORLESS SMECTITE
BRIGHT YELLOW OR BROWN CELADONITE AND CALCITE
OCCUR(WITH HYDROXIDES),SMECTITE PARTLY PRESERVED
IN INTERIOR PARTS OF OL PSEUDOS IN OXIDIZED ZONE;
CELADON
Replacing: OL
HYDROXIDE
Replacing: OL
CALCITE
Replacing: OL
Vesicles -
Location: 0
Leg : 68 Top/Bottom Interval(mm): 480/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 305.10 Rock Type: IGNEOUS
Core: 17 Sample Midpoint(m) : 305.58 Sect/Pc #: 1/PCE 288
ROCK = PLAG-OL MOD PHYRIC BASALT-DOLERITE
SEE ICD FOR MORE FULL DESCRIPTION;
Texture: MOD PHYRIC,DOLERITIC;
Where sampled: FLOW INTERIOR*
Phenocrysts- OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL,ANHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL,ANHEDRAL
OLIVINE ( 5-10%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL OL IN SECTION;
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .01-.03 Morphology: EUHEDRAL,SUBHEDRAL
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,FAN
CLINOPYROXENE
Size(mm): .03-.1 Morphology: SUBHEDRAL,FAN
TITANOMAGNETITE
Size(mm): .03-.1
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03
PERCENT IS FOR TOTAL TITANO-MAGN;
OTHER ( .5-1%)
Size(mm): .1-.3
CR-SPINEL*
Alteration - SMECTITE ( 1-5%)
IN THE OXIDIZED ZONE COLORLESS SMEC REPLACED BY
BRIGHT YELLOW OR BROWN CELADONITE +/- OXIDES +
TRACE OF PYRITE;
CELADON ( 1-5%)
PYRITE ( TR%)
Vesicles -
Percent: 0
Leg : 68 Top/Bottom Interval(mm): 860/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 305.10 Rock Type: IGNEOUS
Core: 17 Sample Midpoint(m) : 305.96 Sect/Pc #: 1/PCE 292
ROCK = PLAG-OL MOD PHYRIC BASALT-DOLERITE;
Texture: MOD PHYRIC,DOLERITIC*
Phenocrysts- OLIVINE
Size(mm): 1-3 Morphology: EUHEDRAL,ANHEDRAL
OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,ANHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL,ANHEDRAL
OLIVINE ( 5-10%)
Size(mm): .03-.1 Morphology: EUHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL OL IN SECTION;
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE ( 50%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE
Size(mm): .03-.1 Morphology: SUBHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL TITANO-MAGN;
OTHER ( TR%)
Morphology: EUHEDRAL
CR-SPINEL*
Alteration - SMECTITE
LIGHT OLIVE GREEN SMECTITE,GOOD MICA-LIKE XTLS
WITH RELICS OF FRESH OL*
Vesicles -
Percent: 0
Leg : 68 Top/Bottom Interval(mm): 1050/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 305.10 Rock Type: IGNEOUS
Core: 17 Sample Midpoint(m) : 307.65 Sect/Pc #: 2/PCE 309
ROCK = PLAG-OL MOD PHYRIC BASALT;
Texture: MOD PHYRIC,VARIOLITIC;
Where sampled: FLOW INTERIOR*
Phenocrysts- OLIVINE ( 1-5%)
Size(mm): .3-1 Morphology: EUHEDRAL
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE (10-20%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE ( 0%)
SPHERULITIC MESOSTASIS ( 80%)
OTHER ( TR%)
CR-SPHINEL*
Alteration - SMECTITE
Replacing: OL
VERY LIGHT PALE SMEC*
Vesicles -
Percent: 0
Leg : 68 Top/Bottom Interval(mm): 100/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 305.10 Rock Type: IGNEOUS
Core: 17 Sample Midpoint(m) : 308.20 Sect/Pc #: 3/PCE 315
ROCK = PLAG-OL MOD PHYRIC BASALT;
Texture: MOD PHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL IN SECTION;
PLAGIOCLASE (10-20%)
Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE ( 1-5%)
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL,ANHEDRAL
SPHERULITIC MESOSTASIS ( 80%)
TITANOMAGNETITE
Size(mm): .03-.1 Morphology: SKELETAL
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03 Morphology: SKELETAL
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - CELADON
Location: VESICLES Replacing: OL
IN PART OF THE SECTION,GREEN AND BRIGHT BROWN
(OXIDATION);
SMECTITE
Location: VESICLES Replacing: OL
ALMOST COLORLESS*
Vesicles -
Size(mm): .03-.1
Percent: TR
Filling: CELADON,SMEC
Leg : 68 Top/Bottom Interval(mm): 1180/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 310.10 Rock Type: IGNEOUS
Core: 18 Sample Midpoint(m) : 311.28 Sect/Pc #: 1/PCE 346
ROCK = PLAG-CPX-OL MOD PHYRIC BASALT;
Texture: MOD PHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
Groundmass - OLIVINE ( 1-5%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL IN SECTION;
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE (20-40%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE ( 1-5%)
Size(mm): .03-.1 Morphology: SUBHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL CPX IN SECTION;
SPHERULITIC MESOSTASIS (20-40%)
TITANOMAGNETITE
Size(mm): .03-.1 Morphology: SKELETAL
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03 Morphology: SKELETAL
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - SMECTITE
Replacing: OL
CELADON
Location: VESICLES Replacing: OL
ONLY IN OXIDIZED PART OF SECTION,GREEN AND BRIGHT
BROWN*
Vesicles -
Size(mm): .03-.1
Percent: TR
Filling: CELADON
Shape: ROUND
Leg : 68 Top/Bottom Interval(mm): 310/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 310.10 Rock Type: IGNEOUS
Core: 18 Sample Midpoint(m) : 311.91 Sect/Pc #: 2/PCE 354
ROCK = PLAG MOD PHYRIC BASALT;
Texture: MOD PHYRIC,VARIOLITIC;
Where sampled: PILLOW RIM*
Phenocrysts- PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - OLIVINE ( .5-1%)
Size(mm): .1-.3 Morphology: EUHEDRAL
PLAGIOCLASE ( 5-10%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE ( .5-1%)
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
GLASS (10-20%)
SPHERULITIC MESOSTASIS ( 80%)
Alteration - SMECTITE
Location: VEIN Replacing: OL,GLASS
ZEOLITE
Location: VEIN
A ZEOLITE(?)MINERAL IN A RATHER THICK VEIN WITH
SMEC,IT LOOKS LIKE ANALCIME,HAS EXTREMELY LOW
BIREFRINGENCE(.001)AND FORMS SECTORS AND TWINS*
Leg : 68 Top/Bottom Interval(mm): 890/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 310.10 Rock Type: IGNEOUS
Core: 18 Sample Midpoint(m) : 312.49 Sect/Pc #: 2/PCE 360
ROCK = APHYRIC BASALT;
Texture: APHYRIC,MICRODOLERITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
OLIVINE ( 1-5%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL OL;
PLAGIOCLASE
Size(mm): 1-3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
PLAGIOCLASE (20-40%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL PLAG;
CLINOPYROXENE
Size(mm): .3-1 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE
Size(mm): .1-.3 Morphology: SUBHEDRAL,ANHEDRAL
CLINOPYROXENE (10-20%)
Size(mm): .03-.1 Morphology: SUBHEDRAL,ANHEDRAL
PERCENT IS FOR TOTAL CPX;
SPHERULITIC MESOSTASIS
TITANOMAGNETITE
Size(mm): .03-.1
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03
PERCENT IS FOR TOTAL TITANO-MAGN*
Alteration - SMECTITE
Replacing: OL
OLIVE-GREEN;
FERROUS HYDROX MINS
Location: VEINS
XTLS OF HEMATITE NEAR VEIN*
Leg : 68 Top/Bottom Interval(mm): 680/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 319.10 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 319.78 Sect/Pc #: 1/PCE 371
ROCK = PLAG-OL-CPX MOD PHYRIC BASALT
THERE ARE TWO THIN SECTIONS;
Texture: MOD PHYRIC;
Where sampled: PILLOW RIM*
Phenocrysts- OLIVINE ( .5-1%)
Size(mm): .3-1 Morphology: EUHEDRAL
REPLACED BY OLIVE GREEN SMEC;
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL
CLINOPYROXENE ( .5-1%)
Size(mm): .3-1
Groundmass - PLAGIOCLASE ( 5-10%)
Size(mm): .1-.3 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
ALTERED GLASS ( >90%)
Morphology: EUHEDRAL,SUBHEDRAL
ALTERED BY DARK BROWN SMEC*
Alteration - SMECTITE
Location: VEINS Replacing: OL,GLASS
Leg : 68 Top/Bottom Interval(mm): 190/ 0 Describer: Pertsev, N.
Hole: 501 Top of Core Depth(m) : 319.10 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 320.79 Sect/Pc #: 2/PCE 382
ROCK = PLAG-OL-CPX MOD PHYRIC BASALT
THE SECOND THIN SECTION-STRONGLY ALTERED
GROUNDMASS(SMEC,OXIDES);
Texture: MOD PHYRIC,MICRODOLERITIC;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE
Size(mm): .3-1 Morphology: EUHEDRAL
PLAGIOCLASE
Size(mm): .3-1 Morphology: EUHEDRAL
CLINOPYROXENE
Size(mm): .3-1 Morphology: EUHEDRAL,SUBHEDRAL
Groundmass - OLIVINE
Size(mm): .1-.3 Morphology: EUHEDRAL
OLIVINE ( 1-5%)
Size(mm): .03-.1 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL OL IN SECTION;
PLAGIOCLASE
Size(mm): .1-.3 Morphology: EUHEDRAL
PLAGIOCLASE (10-20%)
Size(mm): .03-.1 Morphology: EUHEDRAL
PERCENT IS FOR TOTAL PLAG IN SECTION;
CLINOPYROXENE
Size(mm): .1-.3 Morphology: EUHEDRAL,SUBHEDRAL
CLINOPYROXENE ( 1-5%)
Size(mm): .03-.1 Morphology: EUHEDRAL,SUBHEDRAL
PERCENT IS FOR TOTAL CPX IN SECTION;
SPHERULITIC MESOSTASIS ( 85%)
TITANOMAGNETITE ( 1-5%)
Size(mm): .01-.03
Alteration - SMECTITE
Replacing: OL
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