Leg : 82 Top/Bottom Interval(mm): 560/ 0 Describer: Christie, D.M.
Hole: 562 Top of Core Depth(m) : 250.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 250.56 Sect/Pc #: 1/PCE 3B
ROCK = OL-PLAG MODERATELY PHYRIC BASALT;
Texture: SPARSELY PHYRIC,INTERSERTAL-INTERGRANULAR;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 2-3%)
Size(mm): .1-.6 Morphology: ANHEDRAL
LARGELY ALTERED TO CLAY;
PLAGIOCLASE ( 1%)
Size(mm): <2 Morphology: PRISMATIC
RESORBED,ZONED*
Groundmass - PLAGIOCLASE ( 45%)
Size(mm): .4-1 Morphology: LONG LATHS,INTERSTITIAL
2 GENERATIONS;
CLINOPYROXENE ( 40%)
Size(mm): .01-.3 Morphology: GRANULAR-PRISMATIC
MAGNETITE ( 5-8%)
Size(mm): <.01-.05 Morphology: GRANULAR
MESOSTASIS ( 15%)
LIGHT BROWN,PART ALTERED*
Alteration - CLAY MINERALS ( 5%)
Location: VESICLES, Replacing: OL,MESOSTASIS
Location: IRREGULAR
Location: PATCHES
LIGHT BROWN*
Vesicles -
Size(mm): <.5
Percent: <1
Filling: BROWN CLAY
Shape: ROUND
Leg : 82 Top/Bottom Interval(mm): 350/ 0 Describer: Christie, D.M.
Hole: 562 Top of Core Depth(m) : 250.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 254.85 Sect/Pc #: 4/PCE 2C
ROCK = OL-PLAG MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 2-3%)
Size(mm): .1-.2 Morphology: ANHEDRAL
MICROPHENOS;
PLAGIOCLASE ( 1%)
Size(mm): 2-3 Morphology: PRISMATIC,SUBHEDRAL
Groundmass - PLAGIOCLASE ( 45%)
Size(mm): .1-1 Morphology: LONG HOLLOW LATHS,SMALL
Morphology: LATHS,INTERSTITIAL
PLAGIOCLASE
Size(mm): 1-3
CLINOPYROXENE ( 35%)
Size(mm): .01-.1 Morphology: GRANULAR-PRISMATIC
MAGNETITE ( 5%)
Size(mm): .01 Morphology: GRANULAR
GLASS ( 10%)
EXTENSIVELY ALTERED TO GREEN CLAY*
Alteration - CLAY MINERALS ( 5-10%)
Replacing: OL,GLASS
Leg : 82 Top/Bottom Interval(mm): 740/ 0 Describer: Christie, D.M.
Hole: 562 Top of Core Depth(m) : 250.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 256.74 Sect/Pc #: 5/PCE 4B
ROCK = PLAG-OL SPARSELY PHYRIC BASALT;
Texture: SPARSELY PHYRIC,INTERGRANULAR;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 1-2%)
Size(mm): .1-.6 Morphology: ANHEDRAL
APPROX COMP FO80;
PLAGIOCLASE ( 1-2%)
Size(mm): 2-3 Morphology: PRISMATIC
APPROX COMP AN30-65,ZONED,OFTEN RESORBED*
Groundmass - PLAGIOCLASE ( 45%)
Size(mm): .04-1.0 Morphology: ACICULAR-PRISMATIC,
Morphology: INTERSTITIAL
APPROX COMP AN60,2 GENERATIONS;
CLINOPYROXENE ( 40%)
Size(mm): .01-.3 Morphology: PRISMATIC
MAGNETITE ( 7%)
Size(mm): .02-.05 Morphology: GRANULAR-ACICULAR
MESOSTASIS ( 10%)
DARK BROWN DEVITRIFIED GLASS*
Alteration - CLAY MINERALS ( 5%)
Location: INTERSTITIAL Replacing: MESOSTASIS
GREEN-BROWN*
Leg : 82 Top/Bottom Interval(mm): 1040/ 0 Describer: Christie, D.M.
Hole: 562 Top of Core Depth(m) : 259.00 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 263.04 Sect/Pc #: 3/
ROCK = PLAG-OL SPARSELY PHYRIC BASALT
APHANITIC BASALT;
Texture: SPARSELY PHYRIC,APHANITIC,HYALOPILITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- OLIVINE ( TR%)
Size(mm): <.2 Morphology: ANHEDRAL
MICROPHENOS;
PLAGIOCLASE ( TR%)
Size(mm): 1-2 Morphology: PRISMATIC
RESORBED*
Groundmass - OLIVINE ( 2-3%)
Size(mm): <1 Morphology: SKELETAL CHAINS
PLAGIOCLASE ( 50%)
Size(mm): .02-.2 Morphology: ACICULAR
APPROX 5% LARGE HOLLOW LATHS;
CLINOPYROXENE ( 40%)
Size(mm): <.02 Morphology: GRANULAR
FINELY CRYSTALLINE MESOSTASIS;
MAGNETITE ( 5-10%)
Size(mm): <.01 Morphology: GRANULAR
FINELY CRYSTALLINE MESOSTASIS*
Alteration - CARBONATE ( <1%)
Location: VESICLES
CLAY MINERALS ( <1%)
Location: VESICLES,OL
Vesicles -
Size(mm): .1-.5
Percent: 1
Location: RANDOM
Filling: DEVITRIFIED
Shape: ROUND
Filling: GLASS,CALCITE,
Filling: CLAY
FILLING MATERIAL LISTED IN DESCENDING ABUNDANCES*
Leg : 82 Top/Bottom Interval(mm): 100/ 0 Describer: Christie, D.M.
Hole: 562 Top of Core Depth(m) : 268.00 Rock Type: IGNEOUS
Core: 4 Sample Midpoint(m) : 268.10 Sect/Pc #: 1/PCE 1B
ROCK = APHYRIC BASALT;
Texture: APHYRIC,INTERGRANULAR;
Where sampled: APHYRIC FLOW MARGIN*
Groundmass - OLIVINE ( 1%)
Size(mm): <.5 Morphology: UNKNOWN
ALTERED TO ORANGE CLAY;
PLAGIOCLASE ( 45%)
Size(mm): .02-3 Morphology: INTERSTITIAL-LONG LATHS
CLINOPYROXENE ( 35%)
Size(mm): .1-.5 Morphology: PRISMATIC
MAGNETITE ( 5%)
MESOSTASIS ( 10%)
80% ALTERED TO BROWN CLAY;
APATITE ( TR%)
IN MESOSTASIS*
Alteration - CLAY MINERALS ( 15%)
Location: RANDOM- Replacing: GLASS,OL,PLAG
Location: INTERSTITIAL
ORANGE-BROWN*
Leg : 82 Top/Bottom Interval(mm): 1020/ 0 Describer: Christie, D.M.
Hole: 562 Top of Core Depth(m) : 277.00 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 281.02 Sect/Pc #: 3/PCE 1G
ROCK = PLAG SPARSELY PHYRIC BASALT;
Texture: SPARSELY PHYRIC,INTERGRANULAR;
Where sampled: FLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( 1-2%)
Size(mm): 1-5 Morphology: PRISMATIC
COMPLEX,RESORBED*
Groundmass - OLIVINE ( 2-3%)
Size(mm): .5 Morphology: ANHEDRAL
MICROPHENOS,ALTERED TO CLAY;
PLAGIOCLASE ( 45%)
Size(mm): .02-1.5 Morphology: EQUANT TO ELONGATE LATHS
APPROX COMP AN60?,2 GENERATIONS-INTERSTITIAL AND
RADIATING LATHS;
CLINOPYROXENE ( 35%)
Size(mm): .1-.5
MAGNETITE ( 5%)
Size(mm): .03-.06 Morphology: EQUANT
GLASS (10-15%)
60% ALTERED,FRESH HAS SKELETAL MAGN AND APATITE;
APATITE ( TR%)
Size(mm): <.01 Morphology: ACICULAR
IN MESOSTASIS*
Alteration - CLAY MINERALS ( 5-10%)
Location: INTERSTITIAL Replacing: GLASS,OL
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