Leg : 39 Top/Bottom Interval(mm): 130/ 150 Describer: Kharin, G.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 886.14 Sect/Pc #: 1/
ROCK = CARBONATIZED DOLERITE
SOURCE IS IR*
Groundmass - PLAGIOCLASE ( 35%)
APPROX COMP AN61 ZONAL FROM AN50-60;
IRON ORE ( 11%)
GLASS ( 10%)
Alteration - CHLORITE ( 4%)
OTHER ( 40%)
CALCITE+ANKERITE*
Leg : 39 Top/Bottom Interval(mm): 1460/1480 Describer: Kharin, G.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 888.97 Sect/Pc #: 2/
ROCK = CARBONATIZED DOLERITE
SOURCE IS IR*
Groundmass - PLAGIOCLASE ( 36%)
PYROXENE ( 3%)
APPROX COMP AUGITE;
IRON ORE ( 6%)
OTHER ( 24%)
GLASS WITH MICROLITES*
Alteration - CHLORITE ( 1%)
OTHER ( 1%)
CHALCEDONY+FLINT;
OTHER ( 29%)
CALCITE+ANKERITE*
Leg : 39 Top/Bottom Interval(mm): 190/ 210 Describer: Kharin, G.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 889.20 Sect/Pc #: 3/
ROCK = CARBONATIZED DOLERITE
SOURCE IS IR*
Groundmass - PLAGIOCLASE ( 30%)
APPROX COMP AN70 ZONAL FROM AN60-70;
PYROXENE ( 1%)
IRON ORE ( 15%)
GLASS ( 15%)
Alteration - CHLORITE ( 1%)
OTHER ( 1%)
CHALCEDONY+FLINT;
OTHER ( 37%)
CALCITE+ANKERITE*
Leg : 39 Top/Bottom Interval(mm): 680/ 730 Describer: Kharin, G.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 891.21 Sect/Pc #: 4/
ROCK = CARBONATIZED DOLERITE
SOURCE IS IR*
Groundmass - PLAGIOCLASE ( 26%)
APPROX COMP AN51-70;
PYROXENE ( 2.5%)
APPROX COMP AUGITE;
IRON ORE ( 11%)
GLASS ( 9%)
Alteration - CHLORITE ( 1%)
OTHER ( .45%)
CHALCEDONY+FLINT;
OTHER ( 46%)
CALCITE+ANKERITE*
Leg : 39 Top/Bottom Interval(mm): 670/ 690 Describer: Kharin, G.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 892.68 Sect/Pc #: 5/
ROCK = CARBONATIZED DOLERITE
SOURCE IS IR*
Groundmass - PLAGIOCLASE ( 38%)
PYROXENE ( 4%)
IRON ORE ( 16%)
OTHER
GLASS WITH MICROLITES*
Alteration - CHLORITE ( 1%)
OTHER ( 1%)
CHALCEDONY+FLINT;
OTHER ( 35%)
CALCITE+ANKERITE*
Leg : 39 Top/Bottom Interval(mm): 30/ 50 Describer: Kharin, G.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 893.54 Sect/Pc #: 6/
ROCK = CARBONATIZED DOLERITE
SOURCE IS IR*
Groundmass - PLAGIOCLASE ( 30%)
APPROX COMP 60;
PYROXENE ( 20%)
APPROX COMP AUGITE;
IRON ORE ( 5.5%)
GLASS ( 27%)
Alteration - OTHER ( .15%)
CHALCEDONY+FLINT
OTHER ( 16%)
CALCITE+ANKERITE*
Leg : 39 Top/Bottom Interval(mm): 310/ 320 Describer: Bonatti, E.
Hole: 354 Top of Core Depth(m) : 886.00 Rock Type: IGNEOUS
Core: 19 Sample Midpoint(m) : 893.82 Sect/Pc #: 6/PCE 4
ROCK = DOLERITIC BASALT;
Texture: COARSE-GRAINED, SUBOPHITIC, DOLERITIC;
Phenocrysts- PLAGIOCLASE
Size(mm): 0.5-1.5 Morphology: PLATES
CALCIC, APPROX COMP AN65,FREQUENT ALBITE AND
CARLSBAD TWINNING, OCCASIONAL ZONING;
CLINOPYROXENE
Morphology: PARTLY EUHEDRAL
LARGE, C-GAMMA ANGLE APPROX 45-50 IN RANGE OF
AUGITE;
OLIVINE ( 0%)
Groundmass - OPAQUE MINERALS
Morphology: ACICULAR, SKELETAL
FREQUENTLY IN A NETWORK OF PARALLEL ALIGNMENTS,
INCLUDES MAGN + ILMENITE, RELATIVELY LARGE*
Alteration - CALCITE
Replacing: CPX
LARGE (TO 1MM) GENERALLY ROUNDED AGGREGATES OF
MICROCRYSTALLINE CALCITE;
CHALCEDONY
FORMERLY VESICLES?;
CALCITE
Location: VEIN
CHALCEDONY
Location: VEIN
EPIDOTE
Location: VEIN
ZEOLITE
Location: VEIN
CHLORITE
Location: VEIN
MAGN ALSO FOUND IN VEIN*
|
