Leg : 63 Top/Bottom Interval(mm): 170/ 190 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 247.50 Rock Type: IGNEOUS Core: 29 Sample Midpoint(m) : 247.68 Sect/Pc #: 1/PCE 1C ROCK = PLAG-CPX MODERATELY PHYRIC BASALT; Texture: MODERATELY PORPHYRITIC,GLOMEROPORPHYRITIC, INTERSERTAL-SUBVARIOLITIC GROUNDMASS* Phenocrysts- OLIVINE ( TR%) Size(mm): 0.7 Morphology: EUHEDRAL PSEUDOMORPHS?,COMPLETELY ALTERED TO CLAYS + CALCITE; PLAGIOCLASE ( 5%) Size(mm): 0.2-1.0 Morphology: EUHEDRAL-SUBHEDRAL PHENOS + MICROPHENOS; CLINOPYROXENE ( 2%) Size(mm): 0.1-0.7 Morphology: SUBHEDRAL-EQUANT PHENOS + MICROPHENOS* Groundmass - PLAGIOCLASE ( 30%) Size(mm): 0.05-0.1 Morphology: PRISMATIC LATHS,RADIATING Morphology: LATHS CLINOPYROXENE ( 10%) Size(mm): 0.05-0.1 Morphology: ANHEDRAL,EQUANT OPAQUE MINERALS ( 10%) Size(mm): 0.01-0.05 Morphology: ANHEDRAL MESOSTASIS Alteration - CALCITE ( 2%) Location: VESICLES Replacing: OL PHENOS CLAY MINERALS ( 37%) Location: VESICLES, Replacing: OL PHENOS Location: MESOSTASIS Vesicles - Size(mm): 0.2-0.7 Percent: 4 Filling: CLAY.MIN, Shape: CIRCULAR- Filling: CALCITE Shape: IRREGULAR CLAY IS BROWNISH* Leg : 63 Top/Bottom Interval(mm): 880/ 920 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 247.50 Rock Type: IGNEOUS Core: 29 Sample Midpoint(m) : 248.40 Sect/Pc #: 1/PCE 6D ROCK = DOLERITE; Texture: INTERGRANULAR-INTERSERTAL* Groundmass - OLIVINE ( 1%) Size(mm): 0.5-1.0 Morphology: SUBHEDRAL PSEUDOMORPHS,COMPLETELY ALTERED TO CLAY + CALCITE* PLAGIOCLASE ( 40%) Size(mm): 0.1-1.5 Morphology: SUBHEDRAL LATHS CLINOPYROXENE ( 25%) Size(mm): 0.05-0.7 Morphology: ANHEDRAL-EQUANT OPAQUE MINERALS ( 7%) Size(mm): 0.05-0.2 Morphology: ANHEDRAL,IRREGULAR MESOSTASIS Alteration - CARBONATE ( 3%) Location: VESICLES Replacing: OL CLAY MINERALS ( 22%) Location: VESICLES, Replacing: OL Location: MESOSTASIS IN THE INTERSTICES BETWEEN PLAG AND CPX* Vesicles - Size(mm): 0.8 Percent: 2 Filling: CLAY.MIN Shape: CIRCULAR CLAY IS BROWN* Leg : 63 Top/Bottom Interval(mm): 590/ 620 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 252.00 Rock Type: IGNEOUS Core: 30 Sample Midpoint(m) : 252.61 Sect/Pc #: 1/PCE 3F ROCK = DOLERITE; Texture: INTERSERTAL-SUBOPHITIC* Groundmass - OLIVINE PSEUDOMORPHS?; PLAGIOCLASE ( 40%) Size(mm): 0.1-2 Morphology: SUBHEDRAL-ANHEDRAL OPAQUE MINERALS ( 7%) Size(mm): 0.05-0.2 Morphology: ANHEDRAL CLINOPYROXENE ( 39%) Size(mm): 0.1-1 Morphology: ANHEDRAL Alteration - CARBONATE ( 4%) IN THE INTERSTICES BETWEEN PLAG AND CPX; CLAY MINERALS ( 10%) IN THE INTERSTICES BETWEEN PLAG AND CPX; ZEOLITE ( TR%) IN THE INTERSTICES BETWEEN PLAG AND CPX* Leg : 63 Top/Bottom Interval(mm): 30/ 60 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 252.00 Rock Type: IGNEOUS Core: 30 Sample Midpoint(m) : 253.55 Sect/Pc #: 2/PCE 1A ROCK = DOLERITE; Texture: APHYRIC,INTERGRANULAR-INTERSERTAL* Groundmass - PLAGIOCLASE ( 20%) Size(mm): 0.1-2 Morphology: SUBHEDRAL CLINOPYROXENE ( 20%) Size(mm): 0.1-0.5 Morphology: ANHEDRAL,EQUANT OPAQUE MINERALS ( 5%) Size(mm): 0.05-0.2 Morphology: ANHEDRAL Alteration - CARBONATE ( 10%) Location: VEIN CLAY MINERALS ( 15%) IN THE INTERSTICES BETWEEN PLAG AND CPX; QUARTZ ( 30%) Location: VEIN Leg : 63 Top/Bottom Interval(mm): 1160/1200 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 257.00 Rock Type: IGNEOUS Core: 31 Sample Midpoint(m) : 259.68 Sect/Pc #: 2/PCE 9D ROCK = DOLERITE; Texture: APHYRIC,INTERSERTAL-SUBOPHITIC* Groundmass - OLIVINE PSEUDOMORPHS?; PLAGIOCLASE ( 39%) Size(mm): 0.1-2.0 Morphology: SUBHEDRAL-ANHEDRAL CLINOPYROXENE ( 38%) Size(mm): 0.1-1.0 Morphology: ANHEDRAL OPAQUE MINERALS ( 8%) Size(mm): 0.05-0.2 Morphology: ANHEDRAL Alteration - CARBONATE ( TR%) CLAY MINERALS ( 15%) IN THE INTERSTICES BETWEEN PLAG AND PYX; ZEOLITE ( TR%) IN THE INTERSTICES BETWEEN PLAG AND PYX; SERPENTINITE ( TR%) IN THE INTERSTICES BETWEEN PLAG AND PYX* Leg : 63 Top/Bottom Interval(mm): 20/ 40 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 266.00 Rock Type: IGNEOUS Core: 32 Sample Midpoint(m) : 270.53 Sect/Pc #: 4/PCE 1A ROCK = DOLERITE; Texture: APHYRIC,INTERSERTAL-INTERGRANULAR* Groundmass - OLIVINE PSEUDOMORPHS?; PLAGIOCLASE ( 39%) Size(mm): 0.1-2 Morphology: SUBHEDRAL-ANHEDRAL CLINOPYROXENE ( 38%) Size(mm): 0.1-1.5 Morphology: ANHEDRAL OPAQUE MINERALS ( 8%) Size(mm): 0.05-0.5 Morphology: ANHEDRAL Alteration - CARBONATE ( TR%) IN THE INTERSTICES BETWEEN PLAG AND PYX; CLAY MINERALS ( 15%) IN THE INTERSTICES BETWEEN PLAG AND PYX* Leg : 63 Top/Bottom Interval(mm): 1210/1230 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 275.00 Rock Type: IGNEOUS Core: 33 Sample Midpoint(m) : 276.22 Sect/Pc #: 1/PCE 2G ROCK = DOLERITE; Texture: APHYRIC,INTERSERTAL-SUBOPHITIC* Groundmass - PLAGIOCLASE ( 39%) Size(mm): 0.1-2 Morphology: SUBHEDRAL-ANHEDRAL CLINOPYROXENE ( 38%) Size(mm): 0.1-2 Morphology: SUBHEDRAL-ANHEDRAL OPAQUE MINERALS ( 8%) Size(mm): 0.05-0.3 Morphology: ANHEDRAL Alteration - CARBONATE ( TR%) IN THE INTERSTICES BETWEEN PLAG AND PYX; CLAY MINERALS ( 15%) IN THE INTERSTICES BETWEEN PLAG AND PYX* Leg : 63 Top/Bottom Interval(mm): 270/ 290 Describer: Shibata, T. Hole: 473 Top of Core Depth(m) : 284.00 Rock Type: IGNEOUS Core: 34 Sample Midpoint(m) : 287.28 Sect/Pc #: 3/PCE 2 ROCK = PLAG MODERATELY PHYRIC BASALT; Texture: MODERATELY PORPHYRITIC,GLOMEROPORPHYRITIC, HYALOPILITIC* Phenocrysts- OLIVINE ( TR%) Size(mm): 0.5 PSEUDOMORPHS,COMPLETELY ALTERED TO CLAYS; PLAGIOCLASE ( 7%) Size(mm): 0.2-1 Morphology: EUHEDRAL BOTH PHENOS + MICROPHENOS; CLINOPYROXENE ( 5%) Size(mm): 0.1-0.5 Morphology: EUHEDRAL-SUBHEDRAL MOSTLY MICROPHENOS* Groundmass - PLAGIOCLASE ( 10%) Size(mm): 0.01-0.05 Morphology: SKELETAL CLINOPYROXENE ( 5%) Size(mm): 0.01-0.05 Morphology: FEATHERY,SKELETAL GLASS ( 55%) DEVITRIFIED; OPAQUE MINERALS ( 8%) Size(mm): 0.01 Morphology: ANHEDRAL Alteration - CLAY MINERALS ( 9%) Location: VESICLES Replacing: OL PHENOS ZEOLITE ( 1%) Location: VESICLES Vesicles - Size(mm): 0.1-2 Percent: 10 Filling: CLAY.MIN, Shape: OVAL Filling: ZEOLITE |
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]
Please see NOAA's privacy and disclaimer information. Send questions or comments to mgg.info@noaa.gov.
|