Leg : 29 Top/Bottom Interval(mm): 70/ 0 Describer: Ovenshine, A.T. Hole: 283 Top of Core Depth(m) : 589.50 Rock Type: IGNEOUS Core: 19 Sample Midpoint(m) : 589.57 Sect/Pc #: 1/PCE 7 ROCK = BASALT EXTENSIVELY ALTERED; Texture: FINE-GRAINED SOME SUGGESTION OF OPHITIC OR SUBOPHITIC TEXTURE, ORIGINAL TEXTURE INDETERMINATE BECAUSE OF ALTERATION PRODUCTS; Groundmass - PLAGIOCLASE ( 20%) Morphology: LATHS OPAQUE MINERALS ( 10%) BLACK; COMBINATION ( 3%) INCLUDES OL+PYX?,ALTERED; Alteration - SERPENTINITE ( 10%) Replacing: GLASS INTERSERTAL GLASS; CALCITE COMBINATION ( 52%) INCLUDES CLAY+SERP+ZEOL* Leg : 29 Top/Bottom Interval(mm): 70/ 0 Describer: Andrews, P.B. Hole: 283 Top of Core Depth(m) : 589.50 Rock Type: IGNEOUS Core: 19 Sample Midpoint(m) : 589.57 Sect/Pc #: 1/ ROCK = BASALT PROBABLY SAMPLED AT 118-127CM; Texture: HOLOCRYSTALLINE, SUBOPHITIC* Groundmass - PLAGIOCLASE Size(mm): 0.1-1.0 Morphology: LATHS POSSIBLY LABRADORITE; PYROXENE Size(mm): TO 2 Morphology: EUHEDRAL DIVIDED INTO MANY SEGMENTS BY LONG PLAG LATHS, EXTENSIVELY ALTERED TO PALE GREEN FIBROUS MASS, SOME TWINNED WITH CONSECUTIVE RING STRUCTURES, PROBABLY ALTERED TO SERP GROUP MINERAL; MAGNETITE Size(mm): 0.030 Morphology: EUHEDRAL |
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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