Leg : 70 Top/Bottom Interval(mm): 100/ 130 Describer: Laverne, C.
Hole: 507B Top of Core Depth(m) : 31.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 31.12 Sect/Pc #: 1/PCE 20
ROCK = PLAG SPARSELY PHYRIC BASALT;
Texture: SPARSELY PHYRIC,HYALOPILITIC;
Where sampled: FLOW INTERIOR*
Phenocrysts- PLAGIOCLASE ( 1%)
Size(mm): .3 Morphology: EUHEDRAL
ONE XTL HAS A VERY REGULAR ZONATION*
Groundmass - PLAGIOCLASE ( 43%)
Size(mm): .04-.50 Morphology: MICROLITES
CLINOPYROXENE ( 24%)
Size(mm): .04-.25 Morphology: ANHEDRAL
MAGNETITE ( 5%)
Size(mm): .003-.06 Morphology: ANHEDRAL OR SKELETAL
GLASS ( 20%)
Alteration - CALCITE ( <1%)
Location: ASSOCIATED W/
Location: SMEC IN
Location: VESICLES
SMECTITE ( 2%)
Location: FILLING OR
Location: COATING
Location: VESICLES OR
Location: VOIDS IN THE
Location: ALTERED RIM
Vesicles -
Size(mm): .03-.3
Percent: 4
Location: SCATTERED
Filling: SMEC+CALCITE OR
Shape: ROUND
Filling: EMPTY
ONE FRACTURED BORDERED BY SMECTITE*
Leg : 70 Top/Bottom Interval(mm): 160/ 220 Describer: Laverne, C.
Hole: 507B Top of Core Depth(m) : 31.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 31.19 Sect/Pc #: 1/PCE 21
ROCK = APHYRIC BASALT
NO ALTERATION;
Texture: APHYRIC,SUBOPHITIC,OPHITIC-INTERGRANULAR
SOME INTERSERTAL AREAS;
Where sampled: FLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 50%)
Morphology: LATHS
SIZE .1-.8X.001-.02,SOME(ABOUT 2 OR 3 IN SECTION)
ARE ZONED;
CLINOPYROXENE ( 35%)
Size(mm): .5-.05X.2 Morphology: ANHEDRAL
MAGNETITE ( 10%)
GLASS ( 5%)
IRREGULAR PATCHES OF INTERSTITIAL MATERIAL,FORMING
THE INTERSERTAL AREAS*
Leg : 70 Top/Bottom Interval(mm): 430/ 460 Describer: Laverne, C.
Hole: 507B Top of Core Depth(m) : 31.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 31.44 Sect/Pc #: 1/PCE 24
ROCK = APHYRIC BASALT;
Texture: APHYRIC,COARSE-GRAINED,SUBOPHITIC,OPHITIC-
INTERGRANULAR;
Where sampled: FLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 46%)
Morphology: LATHS
SIZE .2-.6X.05-.1MM;
CLINOPYROXENE ( 38%)
Size(mm): .1X.5 Morphology: ANHEDRAL
MAGNETITE ( 7%)
Size(mm): .05X.2 Morphology: SKELETAL
GLASS ( 8%)
Vesicles -
Percent: 1
Filling: EMPTY
Shape: ROUND
Leg : 70 Top/Bottom Interval(mm): 530/ 550 Describer: Laverne, C.
Hole: 507B Top of Core Depth(m) : 31.00 Rock Type: IGNEOUS
Core: 1 Sample Midpoint(m) : 31.54 Sect/Pc #: 1/PCE 25
ROCK = APHYRIC BASALT;
Texture: APHYRIC,SUBOPHITIC,OPHITIC-INTERGRANULAR;
Where sampled: FLOW INTERIOR*
Groundmass - PLAGIOCLASE ( 43%)
Size(mm): .2-.4 Morphology: MOST LATHS,SOME ANHEDRAL
PLAGIOCLASE ( 3%)
Size(mm): .05 Morphology: MICROLITES
CLINOPYROXENE ( 34%)
Size(mm): .04-.2 Morphology: ANHEDRAL
SOMETIMES TWINNED;
MAGNETITE ( 5%)
Size(mm): .04-.16 Morphology: SKELETAL
INTERSTITIAL WITH PLAG AND CPX OR IN THE GLASSY
AREAS;
GLASS ( 10%)
IRREGULAR PATCH OF INTERSTITIAL MATERIAL(GLASS+
MICROLITES)BORDERED BY PLAG LATHS*
Alteration - CALCITE ( <1%)
Location: GLASSY AREAS Replacing: GLASS
SIZE .06MM,ID UNCERTAIN FOR CALCITE AND GLASS
REPLACEMENT*
Vesicles -
Size(mm): .2-.3
Percent: 4
Location: SCATTERED
Filling: EMPTY
Shape: ROUND
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