Leg : 82 Top/Bottom Interval(mm): 1210/ 0 Describer: Christie, D.M.
Hole: 559 Top of Core Depth(m) : 238.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 239.21 Sect/Pc #: 1/PCE 9B
ROCK = APHYRIC BASALT;
Texture: APHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE ( 5%)
COMPLETELY ALTERED;
PLAGIOCLASE ( 40%)
Size(mm): <1 Morphology: LATHS,EQUANT
APPROX COMP AN60;
CLINOPYROXENE ( 30%)
Morphology: PRISMATIC
MAGNETITE ( 5%)
Size(mm): .02-.03 Morphology: CUBES,GRANULAR
MESOSTASIS ( 25%)
Morphology: INTERSTITIAL
COMPLETELY ALTERED*
Alteration - CLAY MINERALS ( 5%)
Location: INTERSTITIAL Replacing: GLASS,OL
OTHER (20-25%)
Location: INTERSTITIAL Replacing: OL,GLASS
POSSIBLY INCLUDES HEULANDITE*
Leg : 82 Top/Bottom Interval(mm): 450/ 0 Describer: Christie, D.M.
Hole: 559 Top of Core Depth(m) : 238.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 241.45 Sect/Pc #: 3/PCE 3B
ROCK = OL MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,VARIOLITIC,HYALOPILITIC;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- OLIVINE ( 2-3%)
Size(mm): .05-.2 Morphology: DIAMOND
MICROPHENOS*
Groundmass - OLIVINE ( 5%)
Size(mm): <.1 Morphology: SKELETAL
WEATHERED ORANGE;
PLAGIOCLASE ( 5-10%)
Size(mm): <.05 Morphology: ACICULAR
INCREASES INWARD;
CLINOPYROXENE ( 5-10%)
Size(mm): <.02 Morphology: GRANULAR,SOME SKELETAL
DEVITRIFIED GLASS ( 80%)
Alteration - CARBONATE ( <1%)
Location: VESICLES
CLAY MINERALS ( 5-10%)
Replacing: OL
ORANGE*
Vesicles -
Size(mm): .1-1
Percent: 1-2
Location: RANDOM
Filling: EMPTY,GLASS,
Shape: ROUND
Filling: CARBONATE
Leg : 82 Top/Bottom Interval(mm): 10/ 0 Describer: Christie, D.M.
Hole: 559 Top of Core Depth(m) : 247.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 247.01 Sect/Pc #: 1/PCE 1A
ROCK = APHYRIC BASALT;
Texture: APHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE ( <5%)
Size(mm): <.5
COMPLETELY ALTERED TO ZEOLITES;
PLAGIOCLASE ( 40%)
Size(mm): .1-.5 Morphology: HOLLOW LATHS
CLINOPYROXENE ( 30%)
Size(mm): .01-.1 Morphology: ELONGATE PRISMS
IN PARALLEL CLUSTERS;
MAGNETITE ( 5%)
Size(mm): .02 Morphology: CUBES,GRANULES
MESOSTASIS ( 25%)
FINE AGGREGATE,HEULANDITE?*
Alteration - CARBONATE ( 1%)
Location: VESICLES,VEIN Replacing: OL
Location: AFTER OL
CLAY MINERALS ( 2-3%)
Location: INTERSTITIAL Replacing: OL,GLASS
ABUNDANT WHERE WEATHERED;
ZEOLITE ( 30%)
Location: INTERSTITIAL Replacing: OL,PLAG(MINOR)
POSSIBLY INCLUDES HEULANDITE*
Vesicles -
Size(mm): .5-1
Percent: 1
Location: RANDOM
Filling: DEVT.GLASS,
Shape: ROUND
Filling: ZEOLITES
SOME SEGREGATION*
Leg : 82 Top/Bottom Interval(mm): 770/ 0 Describer: Christie, D.M.
Hole: 559 Top of Core Depth(m) : 247.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 250.77 Sect/Pc #: 3/PCE 4C
ROCK = APHYRIC BASALT;
Texture: APHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE ( <5%)
Size(mm): <.3 Morphology: PRISMATIC
SOME FRESH,MOST ALTERED TO CLAY,ZEOLITES;
PLAGIOCLASE ( 40%)
Size(mm): .1-.5 Morphology: LONG LATHS
APPROX COMP AN60;
CLINOPYROXENE ( 30%)
Size(mm): .01-.05 Morphology: PRISMS-GRANULAR
PARALLEL OR SHEAF AGGREGATES;
MAGNETITE ( 5%)
Size(mm): .2 Morphology: SKELETAL-GRANULAR
DEVITRIFIED GLASS ( 15%)
Morphology: INTERSTITIAL
OTHER ( 10%)
Morphology: RADIATING OR SUTURED
Morphology: AGGREGATES
POSSIBLY INCLUDES HEULANDITE,AFTER GLASS*
Alteration - CARBONATE ( 1%)
Location: VESICLES
CLAY MINERALS ( 2-3%)
Replacing: GLASS,OL
ZEOLITE ( 10%)
Location: INTERSTITIAL Replacing: GLASS,OL
POSSIBLY INCLUDES HEULANDITE*
Vesicles -
Size(mm): .2-1
Percent: 1-2
Location: RANDOM
Filling: CALCITE,ZEOLITE
Shape: ROUND
Filling: DEVT.GLASS
Leg : 82 Top/Bottom Interval(mm): 1260/ 0 Describer: Christie, D.M.
Hole: 559 Top of Core Depth(m) : 256.50 Rock Type: IGNEOUS
Core: 4 Sample Midpoint(m) : 257.76 Sect/Pc #: 1/PCE 9B
ROCK = PLAG SPARSELY PHYRIC BASALT;
Texture: SPARSELY PHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( TR%)
Size(mm): .5
RESORBED*
Groundmass - OLIVINE ( 5%)
Size(mm): <.3
PLAGIOCLASE ( 40%)
Size(mm): <.5 Morphology: LONG LATHS
APPROX COMP AN60;
CLINOPYROXENE ( 30%)
Size(mm): <.05 Morphology: PARALLEL PRISMS
MAGNETITE ( 5%)
Size(mm): .2-.3 Morphology: CUBES,GRANULES
OTHER ( 25%)
Morphology: INTERSTITIAL
POSSIBLY INCLUDES LAUMONTITE,AFTER GLASS*
Alteration - CLAY MINERALS ( 5%)
Location: INTERSTITIAL Replacing: ZEOLITES
ORANGE;
ZEOLITE ( 20%)
Location: INTERSTITIAL Replacing: GLASS
Vesicles -
Size(mm): .2-1
Percent: <1
Filling: DEVT.GLASS,
Shape: ROUND
Filling: ZEOLITES
Leg : 82 Top/Bottom Interval(mm): 1080/ 0 Describer: Christie, D.M.
Hole: 559 Top of Core Depth(m) : 283.00 Rock Type: IGNEOUS
Core: 7 Sample Midpoint(m) : 287.08 Sect/Pc #: 3/
ROCK = APHYRIC BASALT;
Texture: APHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Groundmass - OLIVINE ( 5%)
Size(mm): <1 Morphology: PRISMATIC
TOTALLY ALTERED TO ZEOLITES;
PLAGIOCLASE ( 5%)
Size(mm): <1.5 Morphology: PRISMS-LATHS/ELONGATE
CLINOPYROXENE ( 30%)
Size(mm): <.5 Morphology: PRISMATIC
MAGNETITE ( 5%)
Size(mm): .2 Morphology: CUBES,GRANULES
MESOSTASIS ( 20%)
Morphology: INTERSTITIAL
INCLUDES HEULANDITE*
Alteration - CLAY MINERALS ( 1-2%)
Location: INTERSTITIAL Replacing: ZEOLITES
BROWN;
ZEOLITE ( 20%)
Location: INTERSTITIAL Replacing: GLASS MESOSTASIS
POSSIBLY INCLUDES HEULANDITE*
|
