Leg : 82 Top/Bottom Interval(mm): 610/ 0 Describer: Christie, D.M.
Hole: 564 Top of Core Depth(m) : 293.00 Rock Type: IGNEOUS
Core: 2 Sample Midpoint(m) : 296.61 Sect/Pc #: 3/PCE 5
ROCK = OL MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,HYALOPHITIC;
Where sampled: DRILL BRECCIA
PROBABLY PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 5%)
Size(mm): .1-.2
MICROPHENOS,ALTERED TO CLAY*
Groundmass - PLAGIOCLASE ( 15%)
Size(mm): 1 Morphology: LATHS
CLINOPYROXENE ( 10%)
Size(mm): .2 Morphology: GRANULAR
PLAG AND CPX IN ZONES SEPARATING ROUND FINE-
GRAINED MATERIAL;
MAGNETITE ( 8%)
Size(mm): .1 Morphology: GRANULAR
GLASS ( 10%)
Morphology: INTERSTITIAL
CLEAR,DUSTED WITH MAGNETITE;
MESOSTASIS ( 60%)
HALF SHEAF CLINOPYROXENE + HALF INTERSTITIAL PLAG*
Alteration - CLAY MINERALS (10-15%)
Replacing: GLASS,OL,MINOR
Replacing: PLAG
GREEN,BROWN,ORANGE*
Leg : 82 Top/Bottom Interval(mm): 980/ 0 Describer: Christie, D.M.
Hole: 564 Top of Core Depth(m) : 320.00 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 322.48 Sect/Pc #: 2/PCE 4B
ROCK = OL PHYRIC BASALT;
Texture: PHYRIC,INTERSERTAL;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 10%)
Size(mm): .2-.5 Morphology: SUBHEDRAL
MICROPHENOS,ALTERED TO LIGHT GREEN
MONTMORILLONITE*
Groundmass - PLAGIOCLASE ( 30%)
Size(mm): .1-1 Morphology: LATHS-INTERSTITIAL
CLINOPYROXENE ( 35%)
Size(mm): .1-.5 Morphology: GRANULAR
PIGEONITE PRESENT;
MAGNETITE ( 8%)
Size(mm): <.01-.1 Morphology: GRANULAR-SKELETAL
GLASS ( 15%)
CLOUDED,SOME ALTERED-BROWN*
Alteration - CLAY MINERALS (15-20%)
Location: INTERSTITIAL Replacing: OL,GLASS
Location: WITH OL
GREEN-BROWN*
Leg : 82 Top/Bottom Interval(mm): 1200/ 0 Describer: Christie, D.M.
Hole: 564 Top of Core Depth(m) : 320.00 Rock Type: IGNEOUS
Core: 5 Sample Midpoint(m) : 324.20 Sect/Pc #: 3/PCE 5G
ROCK = PLAG-OL PHYRIC BASALT;
Texture: PHYRIC,INTERGRANULAR-PLUMOSE;
Where sampled: PILLOW INTERIOR*
Phenocrysts- OLIVINE ( 5-10%)
Size(mm): .1-.3 Morphology: EQUANT,ANHEDRAL-EUHEDRAL
MICROPHENOS,ALTERED TO ZEOLITES;
PLAGIOCLASE ( 5-10%)
Size(mm): .1-.5 Morphology: LATHS
GLOMEROPHYRIC WITH OL,CPX*
Groundmass - PLAGIOCLASE ( 35%)
Size(mm): .01-.1 Morphology: GRANULAR
CLINOPYROXENE ( 35%)
Size(mm): .01-.1 Morphology: INTERSTITIAL,LATHS
PLAG AND CPX INTERGROWN PLUMOSE;
MAGNETITE ( 8%)
Size(mm): .05 Morphology: CUBES,GRANULES
GLASS ( 10%)
Morphology: INTERSTITIAL
ALTERED TO ZEOLITE OR CLAY*
Alteration - CLAY MINERALS ( 5%)
Replacing: GLASS,OL,ZEOLITE
ID UNCERTAIN FOR OL;
ZEOLITE ( 5-10%)
Replacing: OL,GLASS
LIGHT BROWN, ID UNCERTAIN FOR OL*
Leg : 82 Top/Bottom Interval(mm): 450/ 0 Describer: Christie, D.M.
Hole: 564 Top of Core Depth(m) : 329.00 Rock Type: IGNEOUS
Core: 6 Sample Midpoint(m) : 333.95 Sect/Pc #: 4/PCE 2D
ROCK = OL MODERATELY PHYRIC BASALT;
Texture: MODERATELY PHYRIC,INTERGRANULAR;
Where sampled: FLOW INTERIOR*
Phenocrysts- OLIVINE ( 5%)
Size(mm): .1-.3 Morphology: ANHEDRAL-DIAMONDS
MICROPHENOSCRYSTS*
Groundmass - PLAGIOCLASE
Size(mm): .1-1 Morphology: LATHS,INTERSTITIAL
CLINOPYROXENE
Size(mm): .01-.2 Morphology: GRANULAR
MAGNETITE
Size(mm): .1 Morphology: LATHS-GRANULAR
IN GLASS OR NEARBY;
GLASS
Size(mm): 10-15 Morphology: INTERSTITIAL
CLEAR-DUSTED WITH OPAQUES,OFTEN ALTERED TO CLAY;
COPPER ( TR%)
NATIVE COPPER;
PYRRHOTITE ( TR%)
Alteration - CARBONATE ( 1%)
CLAY MINERALS ( 5-10%)
Location: IN PATCHES Replacing: OL,GLASS
PLEOCHROIC GREEN*
Leg : 82 Top/Bottom Interval(mm): 460/ 0 Describer: Christie, D.M.
Hole: 564 Top of Core Depth(m) : 356.00 Rock Type: IGNEOUS
Core: 9 Sample Midpoint(m) : 356.46 Sect/Pc #: 1/PCE 1E
ROCK = OL MODERATELY PHYRIC BASALT
ALTERED BASALT;
Texture: MODERATELY PHYRIC,INTERSERTAL,SUBOPHITIC;
Where sampled: FLOW INTERIOR*
Phenocrysts- OLIVINE ( <5%)
Size(mm): .2-.4 Morphology: ANHEDRAL
MICROPHENOS,ALTERED TO POSSIBLY OPAQUE FE-OXIDES*
Groundmass - PLAGIOCLASE ( 35%)
Size(mm): .1-1.5 Morphology: LATHS,FINE INTERSTITIAL
LATHS ARE 1-1.5MM;
CLINOPYROXENE ( 35%)
Size(mm): .02-.2 Morphology: GRANULAR
MAGNETITE ( 5%)
Size(mm): .02-.05
MESOSTASIS (15-20%)
POSSIBLY ALTERED TO CLAYS,CHLORITE*
Alteration - CARBONATE ( <1%)
Location: OL,VEINLETS
CLAY MINERALS ( 15%)
Location: INTERSTITIAL Replacing: MESOSTASIS,OL
DARK GREEN + BROWN*
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