Leg : 38 Top/Bottom Interval(mm): 0/ 0 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 453.50 Rock Type: IGNEOUS
Core: 37 Sample Midpoint(m) : 455.10 Sect/Pc #: CC/
ROCK = BIOTITE MOD PHYRIC MUGEARITE
STRONGLY WEATHERED AND CHLORITIZED ALKALIBASALT
(TRACHYDOLERITE);
Texture: DOLERITIC*
Phenocrysts- BIOTITE ( 3-5%)
Size(mm): <.5
Groundmass - PLAGIOCLASE ( 45%)
PYROXENE ( 40%)
MAGNETITE ( 5%)
Alteration - CHLORITE ( 3%)
Location: VEINS+PHENOS Replacing: PHENOS
HEMATITE ( 2%)
Replacing: PHENOS
HEMATITE (10-15%)
Location: GROUNDMASS
Vesicles -
Filling: CHLORITE
Leg : 38 Top/Bottom Interval(mm): 80/ 100 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 484.59 Sect/Pc #: 1/PCE 1
ROCK = AUGITE-OL MOD PHYRIC DOLERITE-BASALT;
Texture: DOLERITIC,SUBOPHITIC*
Phenocrysts- OLIVINE ( 1-2%)
Size(mm): <.5
ALTERED;
AUGITE ( 2-3%)
Groundmass - PLAGIOCLASE (35-40%)
PYROXENE (40-45%)
MAGNETITE ( 5%)
Alteration - CHLORITE
Replacing: PHENOS
CHLOROPHAEITE
Replacing: PHENOS
Leg : 38 Top/Bottom Interval(mm): 100/ 131 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 484.62 Sect/Pc #: 1/
ROCK = BASALT
SOURCE IS IR FOR ALL LEG 38 THIN SECTIONS WHERE
PERCENTAGES ARE FROM MODAL ANALYSES*
Groundmass - OLIVINE ( TR%)
PYROXENE ( 50%)
PLAGIOCLASE ( 35%)
IRON ORE ( 10%)
ALTERED GLASS ( 5%)
ALTERED GLASS+MESOSTASIS;
OTHER ( TR%)
ACCESSORIES,PERCENTAGES BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 850/ 881 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 485.37 Sect/Pc #: 1/
ROCK = BASALT*
Groundmass - OLIVINE ( TR%)
PYROXENE ( 35%)
PLAGIOCLASE ( 45%)
IRON ORE ( 10%)
ALTERED GLASS ( 10%)
ALTERED GLASS+MESOSTASIS;
OTHER ( TR%)
ACCESSORIES,% BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 1100/1200 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 485.65 Sect/Pc #: 1/
ROCK = OL-BIOTITE-AUGITE-OR-HBL MOD PHYRIC
Texture: HYDOLERITE
TRACHYDOLERITE-BASALT;
Texture: DOLERITIC*
Phenocrysts- OLIVINE ( 3%)
ALTERED;
AUGITE ( 2%)
BIOTITE ( 2-3%)
ORTHOCLASE
ID UNCERTAIN FOR ORTHOCLASE;
HORNBLENDE
ID UNCERTAIN FOR HORNBLENDE*
Groundmass - OLIVINE ( 2-3%)
PLAGIOCLASE (40-45%)
PYROXENE (40-45%)
MAGNETITE ( 2-3%)
Alteration - CHLORITE
Replacing: PHENOS
CHLOROPHAEITE
Replacing: PHENOS
Leg : 38 Top/Bottom Interval(mm): 1330/1360 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 485.85 Sect/Pc #: 1/PCE 14
ROCK = OL-AUGITE-PLAG-OR MOD PHYRIC TRACHYDOLERITE
TRACHY(?)DOLERITE;
Texture: DOLERITIC*
Phenocrysts- OLIVINE ( 2-3%)
ALTERED;
AUGITE ( 1-2%)
PLAGIOCLASE ( 1-2%)
ORTHOCLASE
Groundmass - PLAGIOCLASE (45-50%)
Size(mm): .1-1
PYROXENE (40-45%)
MAGNETITE ( 5-7%)
Alteration - CHLORITE ( 10%)
Location: VEINS+PHENOS Replacing: PHENOS
CHLOROPHAEITE
Replacing: PHENOS
Leg : 38 Top/Bottom Interval(mm): 1470/1501 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 485.99 Sect/Pc #: 1/
ROCK = BASALT*
Groundmass - OLIVINE ( TR%)
PYROXENE ( 40%)
PLAGIOCLASE ( 50%)
IRON ORE ( 5%)
ALTERED GLASS ( 5%)
ALTERED GLASS+MESOSTASIS,% BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 0/ 0 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 484.50 Rock Type: IGNEOUS
Core: 41 Sample Midpoint(m) : 486.10 Sect/Pc #: CC/
ROCK = AUGITE-OL PHYRIC DOLERITE
INTRUSIVE DIKE;
Texture: DOLERITIC*
Phenocrysts- OLIVINE ( 2%)
ALTERED
AUGITE ( 8%)
FRESH(3%) AND ALTERED(5%)*
Groundmass - PLAGIOCLASE ( 60%)
Size(mm): .01-.1
PYROXENE ( 35%)
MAGNETITE ( 1-2%)
OTHER ( 4%)
Alteration - CHLORITE ( 10%)
Replacing: PHENOS
CHLOROPHAEITE
Replacing: PHENOS
AMPHIBOLE ( 1%)
Replacing: PHENOS
CHLORITE (10-15%)
Location: GROUNDMASS
CHLORITE ( 5%)
Location: VEINS
CARBONATE ( 5%)
Location: VEINS
Vesicles -
Size(mm): .1-.3
Percent: 5
Leg : 38 Top/Bottom Interval(mm): 340/ 360 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 486.50 Rock Type: IGNEOUS
Core: 42 Sample Midpoint(m) : 486.85 Sect/Pc #: 1/PCE 1
ROCK = DOLERITIC BRECCIA;
Groundmass - MAGNETITE ( 7-10%)
Alteration - CHLORITE
Location: VEINS
CALCITE
Location: VEINS
HEMATITE
Location: VEINS
Leg : 38 Top/Bottom Interval(mm): 380/ 410 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 486.50 Rock Type: IGNEOUS
Core: 42 Sample Midpoint(m) : 486.90 Sect/Pc #: 1/PCE 1
ROCK = PLAG-AUGITE-OL-BIOTITE-OR MOD PHYRIC
Texture: HYDOLERITE;
Texture: DOLERITIC,SUBOPHITIC*
Phenocrysts- OLIVINE ( 1%)
ALTERED;
AUGITE ( 2-3%)
PLAGIOCLASE ( 2-3%)
BIOTITE
ORTHOCLASE
ID UNCERTAIN FOR ORTHOCLASE;
Groundmass - PLAGIOCLASE (45-50%)
PYROXENE (40-45%)
MAGNETITE ( 5-7%)
Alteration - CHLORITE ( 2-3%)
Location: VEINS+PHENOS Replacing: PHENOS
CHLOROPHAEITE
Location: VEINS+PHENOS Replacing: PHENOS
CARBONATE
Location: VEINS
Leg : 38 Top/Bottom Interval(mm): 1440/1460 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 486.50 Rock Type: IGNEOUS
Core: 42 Sample Midpoint(m) : 487.95 Sect/Pc #: 1/PCE 13
ROCK = OL-AUGITE-PLAG DOLERITE;
Texture: DOLERITIC*
Phenocrysts- OLIVINE ( 3%)
ALTERED;
AUGITE ( 1%)
PLAGIOCLASE ( 1%)
Groundmass - PLAGIOCLASE (50-55%)
PYROXENE ( 40%)
MAGNETITE ( 5-7%)
Alteration - CHLORITE
Replacing: PHENOS+GLASS
CHLOROPHAEITE
Replacing: PHENOS
Vesicles -
Filling: GOETHITE
Leg : 38 Top/Bottom Interval(mm): 1440/1471 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 486.50 Rock Type: IGNEOUS
Core: 42 Sample Midpoint(m) : 487.96 Sect/Pc #: 1/
ROCK = BASALT*
Groundmass - PYROXENE ( 45%)
PLAGIOCLASE ( 45%)
IRON ORE ( 5%)
ALTERED GLASS ( 5%)
ALTERED GLASS+MESOSTASIS,% BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 1230/1261 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 496.00 Rock Type: IGNEOUS
Core: 43 Sample Midpoint(m) : 497.25 Sect/Pc #: 1/
ROCK = BASALT*
Groundmass - OLIVINE ( TR%)
PYROXENE ( 43%)
PLAGIOCLASE ( 35%)
IRON ORE ( 12%)
ALTERED GLASS ( 10%)
ALTERED GLASS+MESOSTASIS;
OTHER ( TR%)
ACCESSORIES,% BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 930/ 950 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: METAMORPHIC
Core: 44 Sample Midpoint(m) : 506.44 Sect/Pc #: 1/PCE 3
ROCK = BASALTIC MYLONITE
ALTERED,CHLORITIZED;
Leg : 38 Top/Bottom Interval(mm): 950/ 0 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: SEDIMENTARY
Core: 44 Sample Midpoint(m) : 506.45 Sect/Pc #: 1/PCE 3
ROCK = CLAYSTONE
CHLORITIZED RED CLAYSTONE WITH ALTERED,WEATHERED
FRAGMENTS OF TRACHYDOLERITE AND TRACHYBASALT;
Leg : 38 Top/Bottom Interval(mm): 950/ 970 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: IGNEOUS
Core: 44 Sample Midpoint(m) : 506.46 Sect/Pc #: 1/PCE 3
ROCK = BIOTITE-OL-OR MOD PHYRIC TRACHYDOLERITE;
Texture: DOLERITIC*
Phenocrysts- OLIVINE ( 2-3%)
ALTERED;
BIOTITE ( 3-5%)
ORTHOCLASE
ID UNCERTAIN FOR ORTHOCLASE*
Groundmass - PLAGIOCLASE ( 50%)
Size(mm): .1-1
PYROXENE ( 40%)
MAGNETITE ( 2-3%)
Alteration - CHLORITE
Location: VEINS+PHENOS+ Replacing: PHENOS
Location: GROUNDMASS
Leg : 38 Top/Bottom Interval(mm): 950/ 971 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: IGNEOUS
Core: 44 Sample Midpoint(m) : 506.46 Sect/Pc #: 1/
ROCK = BASALT*
Groundmass - OLIVINE ( TR%)
PYROXENE ( 45%)
PLAGIOCLASE ( 40%)
IRON ORE ( 8%)
ALTERED GLASS ( 7%)
ALTERED GLASS+MESOSTASIS,% BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 1100/1120 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: IGNEOUS
Core: 44 Sample Midpoint(m) : 506.61 Sect/Pc #: 1/
ROCK = TRACHYBASALT
ALTERED,CHLORITIZED,POROUS*
Groundmass - PLAGIOCLASE ( 50%)
PYROXENE ( 40%)
MAGNETITE ( 5%)
BIOTITE ( 5%)
Alteration - CHLORITE ( 5-10%)
Location: GROUNDMASS
Leg : 38 Top/Bottom Interval(mm): 1430/1450 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: METAMORPHIC
Core: 44 Sample Midpoint(m) : 506.94 Sect/Pc #: 1/
ROCK = BASALTIC MYLONITE
NO DESCRIPTION*
Leg : 38 Top/Bottom Interval(mm): 580/ 600 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: IGNEOUS
Core: 44 Sample Midpoint(m) : 507.59 Sect/Pc #: 2/
ROCK = TRACHYBASALT
ALTERED,CHLORITIZED,ZEOLITIZED,AMYGDALOIDAL;
Texture: DOLERITIC,SUBOPHITIC*
Groundmass - PLAGIOCLASE ( 50%)
PYROXENE ( 40%)
MAGNETITE ( 3-5%)
BIOTITE ( 3-5%)
Alteration - AMPHIBOLE ( 3%)
Replacing: PHENOS
CHLORITE ( 5%)
Location: VEINS
ZEOLITE ( 5%)
Location: VEINS
Vesicles -
Filling: CHLORITE+ZEOLIT
Shape: E
Leg : 38 Top/Bottom Interval(mm): 710/ 741 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: IGNEOUS
Core: 44 Sample Midpoint(m) : 507.73 Sect/Pc #: 2/
ROCK = BASALT*
Groundmass - OLIVINE ( 3%)
PYROXENE ( 45%)
PLAGIOCLASE ( 40%)
IRON ORE ( 7%)
ALTERED GLASS ( 5%)
ALTERED GLASS+MESOSTASIS,% BY MODAL ANALYSES*
Leg : 38 Top/Bottom Interval(mm): 720/ 740 Describer: Kharin, G.
Hole: 336 Top of Core Depth(m) : 505.50 Rock Type: IGNEOUS
Core: 44 Sample Midpoint(m) : 507.73 Sect/Pc #: 2/PCE 18
ROCK = OL-PLAG-BIOTITE MOD PHYRIC TRACHYBASALT
AMYGDALOIDAL;
Texture: DOLERITIC*
Phenocrysts- OLIVINE ( 2-3%)
Size(mm): <.5
ALTERED;
PLAGIOCLASE ( 2-3%)
ALTERED
BIOTITE
Groundmass - OLIVINE ( 2-3%)
PLAGIOCLASE ( 40%)
PYROXENE (45-50%)
MAGNETITE ( 3-5%)
BIOTITE ( 3-5%)
OTHER ( 3-5%)
Vesicles -
Filling: CHLORITE+CALCIT
Shape: E
AMYGDULES*
|
