Leg : 92 Top/Bottom Interval(mm): 480/ 510 Describer: Goldberg, D.
Hole: 599B Top of Core Depth(m) : 40.80 Rock Type: IGNEOUS
Core: 3 Sample Midpoint(m) : 42.80 Sect/Pc #: 2/
ROCK = APHYRIC BASALT
POSSIBLY TRANSITIONAL TO FERROBASALT;
Texture: APHYRIC, INTERGRANULAR;
Where sampled: X-SECTION OF PIECE WITH FRESH INTERIOR - ALTERED
ROCK = *
Groundmass - OLIVINE ( 1-5%)
Size(mm): 0.1 Morphology: EQUANT GRAINS
RIMMED BY IDDINGS AS APPROACH ALTERED ZONE, IN
ALTERED ZONE COMPLETELY REPLACED;
PLAGIOCLASE (45-50%)
Size(mm): 0.1-0.2 Morphology: ACICULAR
SIZE RANGE IS FOR LENGTH;
CLINOPYROXENE (45-50%)
Size(mm): 0.1-0.2 Morphology: GRANULAR, FEATHERY
MAGNETITE ( 1-5%)
Size(mm): 0.005-0.01
DISSEMINATED WITHIN AND BETWEEN CPX GRAINS*
Alteration - IDDINGSITE ( 1-5%)
Location: OUTER RIM Replacing: OL
REPLACES UP TO 100% OL PSEUDOMORPHS*
Leg : 92 Top/Bottom Interval(mm): 120/ 150 Describer: Goldberg, D.
Hole: 599B Top of Core Depth(m) : 43.80 Rock Type: IGNEOUS
Core: 4 Sample Midpoint(m) : 43.94 Sect/Pc #: 1/PCE 2
ROCK = APHYRIC BASALT
POSSIBLY TRANSITIONAL TO FERROBASALT;
Texture: APHYRIC, INTERGRANULAR (TO SUBSPHERULITIC IN
Piece #: ES);
Where sampled: ACROSS PIECE WITH ALTERED RIM AND FRESHER
INTERIOR, ALTERED BANDS CONCENTRIC TO OUTER ZONE*
Phenocrysts- PLAGIOCLASE ( <1%)
Size(mm): 1.3X.4 Morphology: LATH
ONLY ONE, TWINNED*
Groundmass - OLIVINE ( <1%)
ALMOST ALL ALTERED;
PLAGIOCLASE (40-45%)
Size(mm): 0.1-0.2 Morphology: ACICULAR
SOME PLAG + CPX FORM SUBSPHERICAL CLUSTERS;
CLINOPYROXENE (50-55%)
Size(mm): 0.15 Morphology: GRANULAR TO DENDRITIC
SOME CPX ARE CLOUDY;
MAGNETITE ( 1-5%)
Size(mm): <0.1 Morphology: SKELETAL, GRAINS
DISSEMINATED IN AND AROUND CPX*
Alteration - IDDINGSITE ( 5-7%)
Location: OUTERMOST Replacing: OL
Location: ALTERED ZONE,
Location: IN BANDS AND
Location: CONCENTRIC
Location: BANDS
ALTRATION BANDS EXIST WHERE OL-RICH BANDS
OCCURRED, NOW OL IS ALTERED*
Vesicles -
Size(mm): 0.3-1.5
Percent: <1
Location: SCATTERED -
Filling: GENERALLY
Shape: SQUARISH TO
Location: MORE ABUNDANT
Filling: EMPTY
Shape: OBLONG AND
Location: TOWARD INT.
Shape: ROUNDED
Location: OF PIECE
Leg : 92 Top/Bottom Interval(mm): 640/ 680 Describer: Goldberg, D.
Hole: 599B Top of Core Depth(m) : 43.80 Rock Type: IGNEOUS
Core: 4 Sample Midpoint(m) : 44.46 Sect/Pc #: 1/
ROCK = APHYRIC BASALT
POSSIBLY TRANSITIONAL TO FERROBASALT;
Texture: APHYRIC, SUBSPHERULITIC TO INTERGRANULAR;
Where sampled: SECTION ACROSS PIECE WITH FRESHER INTERIOR,
ALTERED RIM*
Groundmass - OLIVINE ( 1%)
Size(mm): 0.05 Morphology: EQUANT GRAINS
MOSTLY REPLACED;
PLAGIOCLASE (40-45%)
Size(mm): 0.1-0.15 Morphology: ACICULAR
MEASUREMENT IS LENGTH, PLAG + CPX FORM
SUBSPHERICAL CLUSTERS;
CLINOPYROXENE (50-55%)
Size(mm): 0.1 Morphology: GRANULAR
MAGNETITE ( 5%)
Size(mm): <0.01 Morphology: SKELETAL, GRAINS
DISSEMINATED MOSTLY BETWEEN CPX GRAINS*
Alteration - CLAY ( 1%)
Location: OUTER Replacing: CPX-PLAG CLUMPS
Location: OXIDIZED
Location: ZONE
ID UNCERTAIN FOR CLAY;
IDDINGSITE ( 1-5%)
Location: OUTER Replacing: OL
Location: OXIDIZED
Location: ZONE, SOME IN
Location: INTERIOR
INTENSE IN OUTER LAYER - PSEUDOMORPHS*
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