Leg : 91 Top/Bottom Interval(mm): 0/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 65.90 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 66.07 Sect/Pc #: CC/
ROCK = FERROBASALT;
Texture: SPHERULITIC;
Where sampled: FLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 7%)
Size(mm): 0.2-1 Morphology: SUBHEDRAL LATHS
DENDRITIC IN PART;
CLINOPYROXENE ( 3%)
Size(mm): 0.05-1 Morphology: ANHEDRAL
MAGNETITE
IN SPHERULITES;
OTHER ( 90%)
Size(mm): 0.3-0.5 Morphology: ELLIPSOIDAL;
SPHERULITES, APPROX COMP PLAG+MAGN, PERCENTAGES
ESTIMATED, STRONG BROWN COLOR, MAGN RIMS, NO
INTERSTITIAL GLASS*
Vesicles -
Percent: 0
Alteration - CLAY ( 80%)
Location: PERVASIVE Replacing: SPHERULITES
Leg : 91 Top/Bottom Interval(mm): 1140/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 73.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 74.14 Sect/Pc #: 1/
ROCK = FERROBASALT;
Texture: SKELETAL, PILOTAXITIC;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( <<1%)
Size(mm): 0.5-1 Morphology: EUHEDRAL LATHS
PARTIAL EDGE RESORPTION;
CLINOPYROXENE ( <<1%)
Size(mm): 0.5 Morphology: ANHEDRAL
Groundmass - PLAGIOCLASE ( 25%)
Size(mm): 0.2-0.7 Morphology: SUBHEDRAL LATHS
CLINOPYROXENE ( 1%)
Size(mm): 0.2 Morphology: ANHEDRAL
INTERSERTAL, ALTERED TO CLAYS;
MAGNETITE ( 7%)
Size(mm): 0.01-0.05 Morphology: GRAINS, RODS
INTERSTITIAL;
GLASS ( 15%)
AMORPHOUS, ALTERED TO CLAYS;
OTHER ( 52%)
Morphology: BOW TIES
SPHERULITIC CRYSTALLITES, APPROX COMP PLAG, POORLY
DEVELOPED, RELATIVELY COARSE-GRAINED MATRIX,
PERCENTAGES ESTIMATED*
Vesicles -
Percent: 0
Alteration - CLAYS ( 60%)
Location: PERVASIVE
DARK BROWN REPLACING GLASS, GRAY BROWN REPLACING
SPHERULITIC PLAG+ETC PALE GREEN POSSIBLY REPLACING
PYX*
Leg : 91 Top/Bottom Interval(mm): 1000/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 81.50 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 82.50 Sect/Pc #: 1/
ROCK = FERROBASALT;
Texture: SKELETAL, PILOTAXITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 20%)
Size(mm): 0.1-0.7 Morphology: SUBHEDRAL LATHS
CLINOPYROXENE ( TR%)
Size(mm): <0.05
MAGNETITE ( 15%)
Size(mm): 0.01-0.15 Morphology: GRAINS, RODS
GLASS ( 50%)
Morphology: AMORPHOUS
ALTERED TO BROWN AMORPHOUS CLAYS;
QUARTZ ( TR%)
Size(mm): 0.1-0.2 Morphology: ANHEDRAL
Vesicles -
Percent: 0
Alteration - CARBONATE ( 15%)
Location: PATCHY Replacing: ALL
BLEBS SEVERAL MM IN DIAMETER;
CLAYS ( 60%)
Location: PERVASIVE Replacing: GLASS, PYX
BROWN, AMORPHOUS*
Leg : 91 Top/Bottom Interval(mm): 630/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 81.50 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 83.63 Sect/Pc #: 2/
ROCK = FERROBASALT;
Texture: CRYSTALITIC*
Groundmass - PLAGIOCLASE ( 1%)
Size(mm): <0.1 Morphology: ANHEDRAL
DENDRITIC;
CLINOPYROXENE ( TR%)
MAGNETITE ( 15%)
Size(mm): <0.01-0.05 Morphology: GRAINS, RODS
GLASS ( 10%)
Morphology: AMORPHOUS
ALTERED TO CLAY, PERCENTAGE UNCERTAIN;
PLAGIOCLASE ( 75%)
Size(mm): 0.05 Morphology: CRYSTALITIC SHEAVES
PARTIALLY ALTERED TO CLAY*
Vesicles -
Percent: 0
Alteration - CARBONATE
Location: VEIN,FRACTURE Replacing: FE.HYDROXIDE
CLAYS ( 50%)
Location: PERVASIVE Replacing: PLAG CRYSTALITES,PYX GLASS
BROWNISH;
OTHER
Location: VEIN,FRACTURE Replacing: COUNTRY ROCK
FE.HYDROXIDE*
Leg : 91 Top/Bottom Interval(mm): 790/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 87.40 Rock Type: IGNEOUS
Core: 4 Sample Midpoint(m) : 88.19 Sect/Pc #: 1/
ROCK = FERROBASALT;
Texture: SKELETAL;
Where sampled: PILLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 40%)
Size(mm): 0.1-0.8 Morphology: SUBHEDRAL LATHS
EXTENSIVELY ALTERED TO CLAYS;
CLINOPYROXENE ( 25%)
Size(mm): <0.05 Morphology: ANHEDRAL
ALTERED;
MAGNETITE ( 5%)
Size(mm): 0.01-0.05 Morphology: GRAINS, RODS
INTERSERTAL;
GLASS ( 30%)
Morphology: INTERSTITIAL
ALTERED TO DARK BROWN CLAYS*
Vesicles -
Percent: 0
Alteration - CARBONATE ( 2%)
CLAYS ( 60%)
Location: PERVASIVE Replacing: PLAG, PYX, GLASS
LIGHT BROWN PLAG+PYX, DARK BROWN GLASS*
Leg : 91 Top/Bottom Interval(mm): 830/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 96.50 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 97.33 Sect/Pc #: 1/
ROCK = FERROBASALT;
Texture: SKELETAL, MICROLITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- PLAGIOCLASE ( <<1%)
Size(mm): 1 Morphology: RAGGED LATHS
Groundmass - PLAGIOCLASE ( 55%)
Size(mm): 0.05-0.1 Morphology: MICROLITES, SHEAVES OF
Morphology: MICROLITES
PARTIALLY ALTERED;
CLINOPYROXENE
ID AND PERCENTAGE UNCERTAIN;
MAGNETITE ( 5%)
Size(mm): 0.001-0.05 Morphology: GRAINS, RODS, INTERSTITIAL
GLASS ( 40%)
Morphology: INTERSTITIAL
ALTERED*
Vesicles -
Percent: 0
Alteration - CLAYS ( 60%)
Location: PERVASIVE Replacing: ALL MINERALS, GLASS
Leg : 91 Top/Bottom Interval(mm): 630/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 96.50 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 98.63 Sect/Pc #: 2/
ROCK = FERROBASALT;
Texture: SKELETAL, HOLOXTLINE;
Where sampled: PILLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 35%)
Size(mm): 0.2-0.5 Morphology: SUBHEDRAL LATHS
CLINOPYROXENE ( 20%)
Size(mm): 0.1-0.2 Morphology: ANHEDRAL, SUBHEDRAL
INTERSTITIAL;
MAGNETITE ( 5%)
Size(mm): 0.01-0.05 Morphology: GRAINS, RODS
INTERSTITIAL;
GLASS ( 40%)
AMORPHOUS, INTERSTITIAL, ALTERED TO CLAY.MINS*
Vesicles -
Percent: 0
Alteration - CARBONATE ( 7%)
Location: PATCHES,BLEBS Replacing: WHOLE ROCK
GHOST OF ORIGINAL IGNEOUS TEXTURE;
CLAYS ( 75%)
Location: PERVASIVE Replacing: WHOLE ROCK
DARK BROWN GLASS, BROWN PLAG,PYX,MAGN;
CALCITE
Location: VEINS Replacing: FRACTURE FILL
COMB STRUCTURE ALONG EDGES*
Leg : 91 Top/Bottom Interval(mm): 1380/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 96.50 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 99.38 Sect/Pc #: 2/
ROCK = FERROBASALT;
Texture: PILOTAXITIC, FELTED, SKELETAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- CLINOPYROXENE ( TR%)
Size(mm): 0.4 Morphology: SUBHEDRAL
SINGLE CRYSTAL*
Groundmass - PLAGIOCLASE ( 25%)
Size(mm): 0.05-0.2 Morphology: SUBHEDRAL LATHS
PARTIALLY ALTERED;
CLINOPYROXENE ( 20%)
Size(mm): 0.05
ALTERED TO CLAY.MINS;
MAGNETITE ( 10%)
Size(mm): 0.01-0.03 Morphology: INTERSTITIAL, GRAINS, RODS
GLASS ( 45%)
Morphology: INTERSTITIAL
ALTERED TO CLAY.MIN*
Vesicles -
Percent: 0
Alteration - CLAYS ( 85%)
Location: PERVASIVE Replacing: ALL MINERALS
Leg : 91 Top/Bottom Interval(mm): 440/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 105.60 Rock Type: IGNEOUS
Core: 6 Sample Midpoint(m) : 109.04 Sect/Pc #: 3/
ROCK = FERROBASALT;
Texture: MICROLITIC, PILOTAXITIC*
Phenocrysts- PLAGIOCLASE
Size(mm): 0.1-0.5
CLINOPYROXENE
Size(mm): 0.3
PLAG+PYX GLOMEROCRYSTS, SUBHDRAL, EUHEDRAL*
Groundmass - PLAGIOCLASE ( 35%)
Size(mm): 0.04-0.1 Morphology: SUBHEDRAL MICROLITIC LATHS,
Morphology: NEEDLES
CLINOPYROXENE ( 25%)
INTERSTITIAL, ALTERED;
MAGNETITE ( 10%)
Size(mm): 0.005-0.2 Morphology: GRAINS, RODS
INTERSTITIAL;
GLASS ( 30%)
INTERSTITIAL, ALTERED TO CLAYS*
Vesicles -
Percent: 0
Alteration - CLAYS ( 60%)
Location: PERVASIVE Replacing: WHOLE ROCK
DARK BROWN REPLACES GLASS, BROWN REPLACES MINS*
Leg : 91 Top/Bottom Interval(mm): 370/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 115.07 Sect/Pc #: 1/
ROCK = FERROBASALT;
Texture: SKELETAL, MICROLITIC;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( <1%)
Size(mm): 0.5
RAGGED, SHOWS RESORPTION, ALTERED TO SERICITE*
Groundmass - PLAGIOCLASE ( 40%)
Size(mm): 0.02-0.2 Morphology: MICROLITES
CLINOPYROXENE ( 20%)
Size(mm): 0.02-0.05 Morphology: MICROLITES
INTERSERTAL;
MAGNETITE ( 10%)
Size(mm): 0.01-0.05 Morphology: GRAINS, RODS
INTERSTITIAL;
GLASS ( 30%)
INTERSTITIAL, ALTERED*
Vesicles -
Percent: 0
Alteration - CARBONATE ( 5%)
POSSIBLY REPLACING PLAG;
CLAYS ( 75%)
Location: PERVASIVE Replacing: WHOLE ROCK
ALSO VEIN, DARK BROWN REPLACES GLASS, BROWN
REPLACED ALL MINS, LOCAL GREEN REPLACES PYX*
Leg : 91 Top/Bottom Interval(mm): 1040/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 115.74 Sect/Pc #: 1/
ROCK = BASALT;
Texture: SKELETAL;
Where sampled: PILLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 20%)
Size(mm): 0.2-2 Morphology: LATHS, NEEDLES
VARIABLE CONCENTRATIONS ACROSS THIN SECTION;
CLINOPYROXENE ( 10%)
Size(mm): 0.1-0.5 Morphology: ANHEDRAL, INTERSERTAL
PARTIALLY ALTERED, PLAG+PYX INTERGROWTHS;
MAGNETITE ( 10%)
Size(mm): 0.02-0.05 Morphology: GRAINS, RODS
INTERSTITIAL;
GLASS ( 20%)
INTERSTITIAL, ALTERED;
PLAGIOCLASE ( 40%)
Morphology: CRYSTALITIC SHEAVES, RAGGED
Morphology: SPHERULITES, GROUNDMASS
Vesicles -
Size(mm): 0.5
Percent: <<1
Filling: GREEN CLAY.MIN
Shape: SPHERICAL
MINOR CARBONATE*
Alteration - CARBONATE
MINOR VESICLES;
CLAYS ( 40%)
Location: PERVASIVE Replacing: WHOLE ROCK, PRIMARY
Replacing: GLASSES, CRYSTALITIC PLAG
Leg : 91 Top/Bottom Interval(mm): 1230/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 115.93 Sect/Pc #: 1/
ROCK = BASALT;
Texture: SKELETAL, HYPOXTLINE;
Where sampled: PILLOW INTERIOR*
Phenocrysts- CLINOPYROXENE ( <<1%)
Size(mm): 1.5 Morphology: EUHEDRAL OUTLINE
GHOST ONLY, ALTERED TO GREEN CLAY.MINS+OXIDES*
Groundmass - PLAGIOCLASE ( 7%)
Size(mm): 0.1-2 Morphology: NEEDLES
PLAG-PYX INTERGROWTHS;
CLINOPYROXENE ( 3%)
Size(mm): 0.2 Morphology: ANHEDRAL
GHOSTS, ALTERED TO GREEN CLAY.MIN;
MAGNETITE ( 5%)
Size(mm): 0.1 Morphology: GRAINS
IN GLASS AND SPHERULITIC PLAG BUNDLES;
GLASS ( 25%)
INTERSTITIAL TO SPHERULITIC PLAG;
PLAGIOCLASE ( 60%)
Size(mm): 0.1-0.5 Morphology: RAGGED SHEAVES, SPHERULITES
GROUNDMASS HAS BLOTCHY CHANGES IN GRAIN SIZE AND
COMPOSITION;
Vesicles -
Size(mm): <0.5
Percent: <<1
Filling: GREEN CLAY.MIN,
Shape: SPHERICAL
Filling: FE.HYDROXIDES
Alteration - CLAYS ( 60%)
Location: PERVASIVE
BROWN AMORPHOUS REPLACES SPHERULITIC PLAG+GLASS,
GREEN CRYPTOXTLLINE REPLACES PYX*
Leg : 91 Top/Bottom Interval(mm): 340/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 116.54 Sect/Pc #: 2/
ROCK = BASALT;
Texture: SKELETAL, SPHERULITIC;
Where sampled: PILLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 3%)
Size(mm): 0.1-2 Morphology: NEEDLES
CLINOPYROXENE ( 2%)
ALTERED TO GREEN CLAY.MINS;
MAGNETITE ( 10%)
Size(mm): 0.01-0.03 Morphology: GRAINS
INTERSTITIAL;
GLASS ( 20%)
INTERSTITIAL;
PLAGIOCLASE ( 65%)
Size(mm): TO 0.3
XTLITIC, RAGGED SPHERULITES OF FEATHERY RADIATING
CLUSTERS OR SHEAVES OF PLAG WITH INTERSTITIAL
GLASS+MAGN*
Vesicles -
Size(mm): <1
Percent: <0.2
Filling: GREEN CLAY.MIN
Shape: SPHERICAL
Alteration - CLAYS ( 60%)
Location: PERVASIVE
GREEN REPLACING PYX, FILLING VESICLES, BROWN
REPLACING PLAG+GLASS*
Leg : 91 Top/Bottom Interval(mm): 740/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 116.94 Sect/Pc #: 2/
ROCK = BASALT;
Texture: SPHERULITIC, HOLOXTLLINE*
Phenocrysts- PLAGIOCLASE ( <<1%)
Size(mm): 1 Morphology: EUHEDRAL
IN GLASS WITH SPHERULITIC GROWTH ABOUT*
Groundmass - PLAGIOCLASE ( 2%)
Size(mm): <0.1 Morphology: MICROLITIC, DENDRITIC
SPHERULITE CORES;
MAGNETITE
IN SPHERULITES;
GLASS ( 30%)
Morphology: TAN COLOR
INTERSTITIAL TO SPHERULITES AS MOVE TO PILLOW
INTERIOR;
OTHER ( 68%)
Size(mm): 0.2-0.6 Morphology: SPHERICAL TO ELLIPTICAL
SPHERULITES, BROWN COLORED WITH DARK CORES,
COARSER TOWARD PILLOW INTERIOR AND MAGN GRANULES*
Vesicles -
Percent: 0
Alteration - CARBONATE ( 2%)
Location: INTERSTITIAL Replacing: GLASS, FILLING VOIDS
POSSIBLY CALCITE;
CLAYS ( 25%)
Location: PERVASIVE Replacing: GLASS, SPHERULITES
GRAY, AMORPHOUS*
Leg : 91 Top/Bottom Interval(mm): 800/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 117.00 Sect/Pc #: 2/
ROCK = BASALT;
Texture: SPHERULITIC, HOLOXTLLINE;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- PLAGIOCLASE ( <1%)
Size(mm): 0.5-1 Morphology: EUHEDRAL
DENDRITIC INTERGROWTHS;
Groundmass - PLAGIOCLASE ( 3%)
Size(mm): 0.5 Morphology: DENDRITIC MICROLITES
CORES TO SPHERULITES;
MAGNETITE ( TR%)
IN SPHERULITES, GRANULES;
GLASS ( 15%)
Morphology: TAN
ALONG CHILLED EDGE;
OTHER ( 80%)
Size(mm): 0.5-1 Morphology: ELLIPTICAL TO POLYGONAL
SPHERULITES, BROWN TO DARK BROWN COLORED, XTLLITES
COARSER TOWARD PILLOW INTERIOR, MAGN ALSO APPEARS;
Vesicles -
Size(mm): 0.1-0.5
Percent: 1
Location: THROUGHOUT
Filling: GREEN CLAY.MIN
Shape: SPHERICAL
Alteration - CLAYS ( 30%)
Location: PERVASIVE Replacing: SPHERULITE
AMORPHOUS, MINOR*
Leg : 91 Top/Bottom Interval(mm): 880/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 117.08 Sect/Pc #: 2/
ROCK = BASALT;
Texture: SKELETAL, SPHERULITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- PLAGIOCLASE ( <1%)
Size(mm): 1 Morphology: SUBHEDRAL LATHS
RESORBED WITH DENDRITIC OVERGROWTH*
Groundmass - PLAGIOCLASE ( 7%)
Size(mm): 0.2-1.5 Morphology: SUBHEDRAL DENDRITIC LATHS,
Morphology: NEEDLES
CLINOPYROXENE ( 3%)
Morphology: INTERSERTAL
ALTERED TO CLAY.MIN+FE.HYDROXIDES
MAGNETITE ( 5%)
Size(mm): 0.01-0.03 Morphology: INTERSTITIAL TO SPHERULITIC
Morphology: PLAG
GLASS ( 5%)
Morphology: INTERSTITIAL TO PLAG
ALTERED TO CLAY;
PLAGIOCLASE ( 80%)
Size(mm): TO 0.5
SPHERULITE, CRYSTALITIC, NEEDLES, FEATHERS IN
RADIATING CLUSTERS, SHEAVES INTERSTITIAL MAGN
GRANULES, TWO TYPES OF SPHERULITIC TEXTURE, LIGHT
COLORED COARSER ROUNDED AND DARK COLORED FINER
POLYGONAL*
Vesicles -
Size(mm): 0.1-0.6
Percent: 1
Location: THROUGHOUT
Shape: SPHERICAL
FILLING INCLUDES GREEN CLAY OR RED BROWN CLAY
HYDROXIDES OR CARBONATE*
Alteration - CLAYS ( 50%)
Location: PERVASIVE Replacing: SPHERULITE
BROWN, AMORPHOUS*
Leg : 91 Top/Bottom Interval(mm): 950/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 117.15 Sect/Pc #: 2/
ROCK = BASALT;
Texture: FEATHERY, MICROLITIC;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( <<1%)
Size(mm): 2 Morphology: EUHEDRAL
RESORPTION, ZONED*
Groundmass - PLAGIOCLASE ( 3%)
Size(mm): 0.3-1.5 Morphology: DENDRITIC NEEDLES
CLINOPYROXENE ( 2%)
Size(mm): 0.1-0.2 Morphology: ANHEDRAL
ISOLATED XTLS;
MAGNETITE ( 10%)
Size(mm): 0.01-0.05 Morphology: GRAINS, RODS
INTERSTITIAL TO FEATHERY PLAG;
GLASS ( 20%)
Morphology: INTERSTITIAL TO FEATHERY PLAG
ALTERED;
PLAGIOCLASE ( 65%)
Size(mm): TO 0.4 Morphology: FEATHERY, SHEAVES, CLUSTERS
XTLLITIC, GROUNDMASS ALTERED*
Vesicles -
Size(mm): 0.2-0.5
Percent: 1
Location: THROUGHOUT
Shape: SPHERICAL
FILLING INCLUDES GREEN CLAYS, FE.HYDROXIDES, CARB*
Alteration - CLAYS ( 50%)
Location: PERVASIVE Replacing: FEATHERY PLAG, GLASS
SERICITE ( TR%)
Replacing: PLAG
Leg : 91 Top/Bottom Interval(mm): 1060/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 117.26 Sect/Pc #: 2/
ROCK = BASALT;
Texture: SKELETAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( <<1%)
Size(mm): 0.5
PARTIAL RESORPTION, ZONED*
Groundmass - PLAGIOCLASE ( 5%)
Size(mm): 0.2-3 Morphology: THIN LATHS, NEEDLES
DENDRITIC IN PART;
CLINOPYROXENE ( 3%)
Size(mm): 0.1-0.2 Morphology: ANHEDRAL
ISOLATED AS WELL AS INTERGROWN WITH PLAG;
MAGNETITE ( 10%)
Size(mm): 0.01-0.05 Morphology: GRAINS, RODS
INTERSTITIAL TO PLAG, CONCENTRATIONS BETWEEN
SHEAVES OF FEATHERY PLAG;
GLASS ( 20%)
Morphology: INTERSTITIAL
ALTERED;
PLAGIOCLASE ( 60%)
Size(mm): TO 0.1 Morphology: FEATHERY SHEAVES
XTLITES*
Vesicles -
Size(mm): 0.1-0.3
Percent: <1
Location: THROUGHOUT
Shape: SPHERICAL
FILLING INCLUDES GREEN CLAYS, FE.HYDROXIDES*
Alteration - CLAYS ( 60%)
Location: PERVASIVE Replacing: ALL
GRAY AMORPHOUS REPLACING PLAG , GREEN REPLACING
PYX*
Leg : 91 Top/Bottom Interval(mm): 1470/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 117.67 Sect/Pc #: 2/
ROCK = BASALT;
Texture: SPHERULITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- PLAGIOCLASE ( <1%)
Size(mm): 0.2-2 Morphology: EUHEDRAL
Groundmass - PLAGIOCLASE ( 2%)
Size(mm): 0.1-0.6 Morphology: DENDRITIC LATHS
CORES TO SPHERULITES;
MAGNETITE
Size(mm): 0.003-0.01 Morphology: GRANULES
IN SPHERULITES, INTERSTITIAL TO PLAG;
GLASS ( 10%)
Morphology: TAN
DECREASES AWAY FROM COOLING EDGE;
OTHER ( 87%)
Size(mm): 0.3-1 Morphology: SPHERICAL, ELLIPSOIDAL,
Morphology: INTERLOCKING
XTLITIC, SHEAVES OF PLAG, STRONGLY COLORED BROWN*
Vesicles -
Size(mm): 0.1-0.4
Percent: 1
Location: THROUGHOUT
Filling: CLAY.MIN, CARB
Shape: SPHERICAL,
Shape: IRREGULAR
Alteration - CLAYS ( 30%)
Location: PERVASIVE Replacing: SPHERULITIC
BROWNISH, GRAYISH AMORPHOUS*
Leg : 91 Top/Bottom Interval(mm): 80/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 117.78 Sect/Pc #: 3/
ROCK = BASALT;
Texture: SPHERULITIC, MICROLITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- PLAGIOCLASE ( <<1%)
Size(mm): 0.5 Morphology: EUHEDRAL
Groundmass - PLAGIOCLASE ( 1%)
Size(mm): 0.2-1 Morphology: DENDRITIC NEEDLES
MAGNETITE ( 5%)
Size(mm): 0.005-0.01 Morphology: GRAINS, RODS
INTERSTITIAL WITHIN SPHERULITES;
OTHER ( 99%)
Size(mm): 0.3-0.8
SPHERULITES, STRONGLY COLORED RAGGED, POORLY
DEFINED, ALTERED*
Vesicles -
Size(mm): 0.1-0.5
Percent: <1
Location: THROUGHOUT
Filling: CLAY.MIN, CARB
Shape: SPHERICAL
Alteration - CLAYS ( 40%)
Location: PERVASIVE Replacing: ALL
BROWN, GRAY*
Leg : 91 Top/Bottom Interval(mm): 910/ 0 Describer: Rosencrantz, E.
Hole: 595B Top of Core Depth(m) : 114.70 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 118.61 Sect/Pc #: 3/
ROCK = BASALT;
Texture: SPHERULITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- PLAGIOCLASE ( <1%)
Size(mm): 0.2-0.6 Morphology: EUHEDRAL
DENDRITIC OVERGROWTHS*
Groundmass - PLAGIOCLASE ( 3%)
Size(mm): 0.2-1 Morphology: DENDRITIC NEEDLES
SUBPARALLEL ORIENTATION;
MAGNETITE ( 5%)
Size(mm): 0.005-0.01 Morphology: GRAINS INTERSTITIAL TO PLAG
Morphology: XTLITES IN SPHERULITES
GLASS ( 5%)
Morphology: TAN
ALONG COOLED EDGE;
OTHER ( 97%)
Size(mm): 0.5-1.5
CIRCULAR TO ELLIPTICAL AT CONTACT, POLYGONAL
INTERLOCKED INWARD FROM CONTACT, STRONGLY COLORED
BROWN*
Vesicles -
Size(mm): 0.1-0.3
Percent: 1
Location: THROUGHOUT
Filling: CLAY.MINS
Shape: SPHERICAL
Alteration - CLAYS ( 60%)
Location: PERVASIVE Replacing: WHOLE ROCK
GRAY, BROWN*
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