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* |
Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]
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