Leg : 82 Top/Bottom Interval(mm): 330/ 0 Describer: Brannon, J.
Hole: 563 Top of Core Depth(m) : 364.50 Rock Type: IGNEOUS
Core: 23 Sample Midpoint(m) : 364.83 Sect/Pc #: 1/PCE 2B
ROCK = PLAG-OL MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,GLOMEROPHYRIC,INTERGRANULAR;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( TR%)
Size(mm): .5-.6 Morphology: SUBHEDRAL
PLUCKED PORTIONS;
PLAGIOCLASE ( 7%)
Size(mm): .9-1.8 Morphology: LATHS
APPROX COMP AN50-60,CORRODED OR RESORBED SOMEWHAT,
LIQUID INCLUSIONS*
Groundmass - OLIVINE ( 1%)
Size(mm): .1-.3 Morphology: SUBHEDRAL
OXIDIZED RIMS;
PLAGIOCLASE ( 40%)
Size(mm): .1-.5 Morphology: ACICULAR-SKELETAL
CLINOPYROXENE ( 46%)
Size(mm): .04-.14 Morphology: ANHEDRAL,PLUMOSE
PLUMOSE <.1MM;
MAGNETITE ( 3%)
Size(mm): <.01-.03 Morphology: GRANULAR-EUHEDRAL
Vesicles -
Size(mm): .1-.3
Percent: 3
Filling: CALCITE
Shape: ROUND TO
Shape: ANGULAR
Leg : 82 Top/Bottom Interval(mm): 810/ 0 Describer: Brannon, J.
Hole: 563 Top of Core Depth(m) : 366.50 Rock Type: IGNEOUS
Core: 24 Sample Midpoint(m) : 367.31 Sect/Pc #: 1/PCE 5B
ROCK = PLAG-OL MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,GLOMEROPHYRIC INTERGRANULAR;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( TR%)
Size(mm): .7 Morphology: EUHEDRAL
PLUCKED,ONLY OXIDIZED RIM LEFT;
PLAGIOCLASE ( 5%)
Size(mm): 1.2-2.5 Morphology: LATHS
APPROX COMP AN68,SOME RESORBED,LIQUID INCLUSIONS*
Groundmass - OLIVINE ( TR%)
Size(mm): .04 Morphology: GRANULAR
OXIDIZED;
PLAGIOCLASE ( 45%)
Size(mm): .1-.4 Morphology: ACICULAR-LATHS
CLINOPYROXENE ( 38%)
Size(mm): .02-.1 Morphology: GRANULAR
OPAQUE MINERALS ( 2%)
Size(mm): <.01-.08 Morphology: CUBIC-ACICULAR
INCLUDES MAGNETITE + ILMENITE*
Alteration - CARBONATE ( 5%)
Location: VEINS,
Location: VESICLES,
Location: INTERSTICES
CLAY MINERALS ( 5%)
Location: VEINS,
Location: VESICLES,
Location: INTERSTICES
Vesicles -
Size(mm): .1-.4
Percent: 10
Location: SCATTERED
Filling: CALCITE OR CLAY
Shape: ROUND
Leg : 82 Top/Bottom Interval(mm): 1230/ 0 Describer: Neuser, R.
Hole: 563 Top of Core Depth(m) : 366.50 Rock Type: IGNEOUS
Core: 24 Sample Midpoint(m) : 369.23 Sect/Pc #: 2/
ROCK = OL-PLAG SPARSELY PHYRIC BASALT;
Texture: SPARSELY PHYRIC,HYALOPHITIC,PLUMOSE;
Where sampled: NEXT TO GLASSY MARGIN*
Phenocrysts- OLIVINE ( <1%)
Size(mm): <.8 Morphology: EUHEDRAL-SUBHEDRAL
PSEUDOMORPHS OF CLAY;
PLAGIOCLASE ( <<1%)
Size(mm): .4-.6 Morphology: LATHS
APPROX COMP AN50*
Groundmass - PLAGIOCLASE ( 13%)
Size(mm): .02-.4 Morphology: LATHS,SOME SKELETAL
CLINOPYROXENE ( 5%)
Size(mm): .01-.05 Morphology: ANHEDRAL
UNDULOUS;
OPAQUE MINERALS ( 5%)
Size(mm): .02 Morphology: SUBHEDRAL-ANHEDRAL
INCLUDES MAGNETITE + ILMENITE;
MESOSTASIS ( 73%)
Morphology: PLUMOSE,MATURE SHEAF PLAG
Alteration - CARBONATE
Location: VESICLES
CLAY MINERALS
Location: OL + VESICLES Replacing: OL
Vesicles -
Size(mm): .2-.7
Percent: 3-5
Location: RANDOM
Filling: PARTLY CLAY
Shape: ROUND +
Shape: IRREGULAR
Leg : 82 Top/Bottom Interval(mm): 400/ 0 Describer: Neuser, R.
Hole: 563 Top of Core Depth(m) : 366.50 Rock Type: IGNEOUS
Core: 24 Sample Midpoint(m) : 371.40 Sect/Pc #: 4/PCE 1C
ROCK = PLAG MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,GLOMEROPHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( 5%)
Size(mm): 1-5 Morphology: SUBHEDRAL-EUHEDRAL LATHS,
Morphology: PRISMS
GLOMEROCRYSTS SLIGHTLY RESORBED,LIQUID INCLUSIONS,
ZONATION*
Groundmass - PLAGIOCLASE ( 35%)
Size(mm): .1-.5 Morphology: LATHS,TWINS
CLINOPYROXENE ( 35%)
Size(mm): .02-.3 Morphology: EQUANT-ANHEDRAL
UNDULOUS;
OPAQUE MINERALS ( 1-2%)
Size(mm): .08-.1 Morphology: ANHEDRAL-SUBHEDRAL,CHAINS
INCLUDES MAGNETITE + ILMENITE;
MESOSTASIS ( 25%)
Morphology: PLUMOSE SKELETAL PLAG
APATITE ( TR%)
Alteration - CARBONATE ( 1%)
Location: VESICLES
Vesicles -
Size(mm): .3-.8
Percent: 1
Location: SCATTERED
Filling: CALCITE
Shape: ROUND
Leg : 82 Top/Bottom Interval(mm): 720/ 0 Describer: Neuser, R.
Hole: 563 Top of Core Depth(m) : 373.50 Rock Type: IGNEOUS
Core: 25 Sample Midpoint(m) : 375.72 Sect/Pc #: 2/PCE 3A
ROCK = PLAG-OL MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,GLOMEROPHYRIC,INTERGRANULAR-
INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 1%)
Size(mm): <.5 Morphology: EUHEDRAL-SUBHEDRAL
PARTLY REPLACED BY CLAY;
PLAGIOCLASE ( 5%)
Size(mm): .5-5 Morphology: PRISMS,LATHS
APPROX COMP AN60,PARTLY GLOMEROPHYRIC,ZONED,LIQUID
INCLUSIONS*
Groundmass - PLAGIOCLASE ( 43%)
Size(mm): .05-.5 Morphology: LATHS
FELTY INTERGROWN;
CLINOPYROXENE ( 45%)
Size(mm): .02-.25 Morphology: ANHEDRAL
UNDULOUS;
MESOSTASIS ( 2-3%)
Alteration - CLAY MINERALS ( 1-2%)
Location: OL,MESOSTAS Replacing: OL,MESOSTAS
Vesicles -
Size(mm): .1-.4
Percent: 1-2
Location: RANDOM
Filling: CALCITE + CLAY
Shape: ROUND +
Shape: IRREGULAR
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