Leg : 32 Top/Bottom Interval(mm): 830/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 334.50 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 335.33 Sect/Pc #: 1/PCE 4
ROCK = BASALT;
Groundmass - PLAGIOCLASE
Size(mm): .03X.1 Morphology: FIBROUS
Alteration - CELADON
Location: VESICLES
Vesicles -
Filling: CELADONITE
Leg : 32 Top/Bottom Interval(mm): 1170/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 334.50 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 335.67 Sect/Pc #: 1/PCE 8A
ROCK = BASALT;
Groundmass - PLAGIOCLASE ( 41%)
Size(mm): .12X.4
PYROXENE ( 17%)
Size(mm): .1
OPAQUE MINERALS ( 8%)
Alteration - ALTERED MINERALS ( 34%)
Leg : 32 Top/Bottom Interval(mm): 60/ 80 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 334.50 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 336.07 Sect/Pc #: 2/PCE 1A
ROCK = BASALT;
Groundmass - PLAGIOCLASE ( 32%)
PYROXENE ( 21%)
MUCH MORE ALTERED THAN PLAG(TO OLIVE BROWN
MONTMORILLONITE(?));
OPAQUE MINERALS ( 12%)
Alteration - ALTERED MINERALS ( 35%)
Leg : 32 Top/Bottom Interval(mm): 480/ 500 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 334.50 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 336.49 Sect/Pc #: 2/
ROCK = BASALT
SOURCE IS IR;
Texture: INTERGRANULAR*
Groundmass - PLAGIOCLASE
PYROXENE
PLAG AND PYX LARGELY UNALTERED*
Alteration - MONTMORILLONITE
Location: VESICLES,
Location: PATCHES IN
Location: GROUNDMASS
OLIVE-BROWN*
Vesicles -
Filling: MONTMORILLONITE
Leg : 32 Top/Bottom Interval(mm): 590/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 334.50 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 336.59 Sect/Pc #: 2/PCE 5A
ROCK = BASALT;
Groundmass - PLAGIOCLASE
PYROXENE
PLAG AND PYX OCCASIONALLY INTERGROWN IN SHEAVES,
THIS SAMPLE MUCH LESS ALTERED THAN 15-2-6-8 AND
15-2-134*
Leg : 32 Top/Bottom Interval(mm): 1390/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 334.50 Rock Type: IGNEOUS
Core: 15 Sample Midpoint(m) : 337.39 Sect/Pc #: 2/PCE 7B
ROCK = BASALT;
Alteration - CALCITE
Location: 3MM VEIN
Leg : 32 Top/Bottom Interval(mm): 650/ 690 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 337.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 338.17 Sect/Pc #: 1/PCE 1
ROCK = BASALT;
Groundmass - PLAGIOCLASE ( 34%)
PYROXENE ( 8%)
ALTERATION OF PYX IS EXTENSIVE,PLAG IS LESS SO,
ALTERATION PRODUCT IS OLIVE BROWN MONTMORILLONITE;
OPAQUE MINERALS ( 18%)
Alteration -
COMPOSED OF CALCITE,CELADONITE,CHALCEDONY AND SOME
MONTMORILLONITE(?)*
Leg : 32 Top/Bottom Interval(mm): 500/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 337.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 339.50 Sect/Pc #: 2/PCE 8
ROCK = BASALT;
Groundmass - PLAGIOCLASE
PYROXENE
MOST OF PLAG AND PYX OCCURS INTERGROWN IN SHEAVES
(.3X.8MM)*
Alteration -
CALCITE VEIN CONTAINS FECAL PELLETS WHICH ARE
OCCASIONALLY REPLACED BY PYRITE*
Leg : 32 Top/Bottom Interval(mm): 1300/1320 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 337.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 340.31 Sect/Pc #: 2/
ROCK = BASALT
SAME AS 32-304-15-2-48-50 EXCEPT CALCITE FILLS
SOME VESICLES AND MONTMORILLONITE IS MORE YELLOW,
SOURCE IS IR*
Leg : 32 Top/Bottom Interval(mm): 740/ 760 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 337.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 341.25 Sect/Pc #: 3/PCE 10
ROCK = BASALT
FAIRLY FRESH;
Groundmass - PLAGIOCLASE ( 44%)
PYROXENE ( 38%)
MUCH OF THE PLAG AND PYX IS INTERGROWN IN SHEAVES
(.3X.8MM);
OPAQUE MINERALS ( 8%)
GLASS ( 4%)
ID UNCERTAIN FOR GLASS*
Alteration - ALTERED MINERALS ( 6%)
INCLUDES INTERSTITIAL PATCHES OF OLIVE BROWN
MONTMORILLONITE*
Leg : 32 Top/Bottom Interval(mm): 450/ 470 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 337.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 342.46 Sect/Pc #: 4/PCE 6
ROCK = BASALT;
Texture: INTERSERTAL-FEATHERY
XTLLINITY VARIES FROM INTERSERTAL(PLAG LATHS AND
APPROX EQUANT PYX GRAINS) TO FEATHERY*
Groundmass - PLAGIOCLASE
Morphology: LATHS
PYROXENE
Morphology: EQUANT
ALTERED TO OLIVE BROWN MONTMORILLONITE*
Leg : 32 Top/Bottom Interval(mm): 1150/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 337.50 Rock Type: IGNEOUS
Core: 16 Sample Midpoint(m) : 343.15 Sect/Pc #: 4/PCE 12
ROCK = BASALT;
Texture:
LESS FEATHERY THAN 16-4-45-47*
Groundmass - PLAGIOCLASE ( 28%)
PYROXENE ( 39%)
OPAQUE MINERALS ( 17%)
Alteration - ALTERED MINERALS ( 16%)
Leg : 32 Top/Bottom Interval(mm): 1130/ 0 Describer: Marshall, M.
Hole: 304 Top of Core Depth(m) : 343.00 Rock Type: IGNEOUS
Core: 17 Sample Midpoint(m) : 344.13 Sect/Pc #: 1/PCE 2
ROCK = BASALT;
Texture: FEATHERY
SOMEWHAT FEATHERY IN PLACES*
Groundmass - PLAGIOCLASE ( 36%)
PYROXENE ( 35%)
FAIRLY MUCH ALTERED TO OLIVE BROWN
MONTMORILLONITE;
OPAQUE MINERALS ( 12%)
Alteration - MONTMORILLONITE
Replacing: PYX
ALTERED MINERALS ( 17%)
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