Leg : 65 Top/Bottom Interval(mm): 1100/1120 Describer: Robinson, P. Hole: 483C Top of Core Depth(m) : 105.00 Rock Type: IGNEOUS Core: 4 Sample Midpoint(m) : 107.61 Sect/Pc #: 2/PCE 7B ROCK = APHYRIC BASALT; Texture: APHYRIC,MEDIUM-GRAINED,INTERGRANULAR* Groundmass - OLIVINE ( 5%) Size(mm): 0.15-0.3 Morphology: SUBHEDRAL ALTERED TO SMEC,A FEW GRAINS WITH FRESH REMNANTS; PLAGIOCLASE (50-55%) Size(mm): 0.2-1 Morphology: SUBHEDRAL,LATHS FRESH; CLINOPYROXENE (35-40%) Size(mm): 0.05-0.25 Morphology: GRANULAR MOSTLY FRESH,MINOR ALTERATION TO CHLORITE?,2VZ=40; OPAQUE MINERALS ( 3-4%) Size(mm): 0.05-0.15 Morphology: SUBHEDRAL,SKELETAL INCLUDES MAGN + ILMENITE; MICROCRYST GROUNDMASS ( 1-2%) INTERSTITIAL MATERIAL,GLASSY TO MICROXLN PATCHES, ALTERED TO SMEC WITH MINOR APATITE + ?CHLORITE* Alteration - SMECTITE Location: INTERSTITIAL, Replacing: OL Location: VESICLES SOME OL + INTERSTITIAL MATERIAL REPLACED BY SMEC* Vesicles - Size(mm): 0.2-0.4 Percent: <1 Filling: SMEC Shape: SPHERICAL Leg : 65 Top/Bottom Interval(mm): 980/1010 Describer: Robinson, P. Hole: 483C Top of Core Depth(m) : 105.00 Rock Type: IGNEOUS Core: 4 Sample Midpoint(m) : 112.00 Sect/Pc #: 5/PCE 8 ROCK = APHYRIC BASALT; Texture: APHYRIC,MEDIUM-GRAINED,INTERGRANULAR* Groundmass - OLIVINE ( 5%) Size(mm): 0.2-0.5 Morphology: SUBHEDRAL PARTLY ALTERED TO SMEC; PLAGIOCLASE ( 55%) Size(mm): 0.4-1.5 Morphology: SUBHEDRAL,LATHS FRESH; CLINOPYROXENE ( 35%) Size(mm): 0.1-0.3 Morphology: GRANULAR MOSTLY FRESH,SOME MARGINALLY ALTERED TO ?CHLORITE; OPAQUE MINERALS ( 2-3%) Size(mm): 0.1-0.3 Morphology: ANHEDRAL,SKELETAL OFTEN SKELETAL,PROBABLY MAGN; MICROCRYST GROUNDMASS ( 1%) INTERSTITIAL MATERIAL,MOSTLY QUARTZ WITH MINOR APATITE; QUARTZ INTERSTITIAL,MICROXLN; APATITE INTERSTITIAL,MICROXLN* Alteration - Location: VESICLES Replacing: OL SOME OL ALTERED TO SMEC* Vesicles - Size(mm): 0.3-0.5 Percent: <1 Filling: SMEC Shape: SPHERICAL |
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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