Leg : 54 Top/Bottom Interval(mm): 150/ 170 Describer: Srivastava, R.K. Hole: 421 Top of Core Depth(m) : 85.50 Rock Type: IGNEOUS Core: 2 Sample Midpoint(m) : 85.66 Sect/Pc #: 1/PCE 1 ROCK = APHYRIC BASALT FAIRLY FRESH; Texture: GLASSY IN PARTS INTERSERTAL* Groundmass - PLAGIOCLASE ( 2%) Morphology: LATHS APPROX SIZE IS 2-4MM X 0.01MM, 1 LARGE MICROPHENOCRYST CONTAINS IRREGULAR GLASSY INCLUSIONS OF APPROX 1MM X 0.2 MM, APPROX PLAG COMP AN60; CLINOPYROXENE ( 2%) Morphology: IRREGULAR APPROX SIZE 1-2MM X 0.01MM; MAGNETITE ( 5%) DISSEMINATED; GLASS ( 85%) Vesicles - Size(mm): 5-20 Percent: 2 Filling: SMEC,CHLORITE Shape: ROUND Leg : 54 Top/Bottom Interval(mm): 280/ 350 Describer: Srivastava, R.K. Hole: 421 Top of Core Depth(m) : 95.00 Rock Type: IGNEOUS Core: 3 Sample Midpoint(m) : 95.32 Sect/Pc #: 1/PCE 3 ROCK = APHYRIC BASALT FRESH; Texture: INTERSERTAL ROCK APPEARS TO BE TYPICAL FINE GRAINED BASALT* Groundmass - PLAGIOCLASE ( 43.8%) Morphology: LATHS DIMENSIONS 1-2 X .01; CLINOPYROXENE ( 34.5%) Morphology: IRREGULAR DIMENSIONS 2-5 X 0.01; MAGNETITE ( 5%) GLASS ( 15.2%) PERCENTAGES OBTAINED BY POINT COUNT* Alteration - COMBINATION ( 1.5%) INCLUDES SMEC+CHLORITE* Vesicles - Percent: 2 Filling: SMEC,CHLORITE |
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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