Core Data from the Deep Sea Drilling Project

Leg : 82    Top/Bottom Interval(mm):  780/   0  Describer: Brannon, J.
Hole: 557   Top of Core Depth(m)   :   460.50   Rock Type: IGNEOUS
Core:   1   Sample Midpoint(m)     :   461.28   Sect/Pc #:  1/PCE 8

ROCK = APHYRIC BASALT;
       Texture: APHYRIC,INTERSERTAL-INTERGRANULAR,
       MEDIUM-GRAINED;
       Where sampled: FLOW INTERIOR*

Groundmass - PLAGIOCLASE               (   40%)
             Size(mm):     .4-1.9  Morphology: LATHS
             APPROX COMP AN56;

             CLINOPYROXENE             (   35%)
             Size(mm):      .1-.6  Morphology: GRANULES
             AGGREGATES UP TO 1MM;

             MAGNETITE                 (    7%)
             Size(mm):     .01-.7  Morphology: EQUANT-SKELETAL LATHS

             DEVITRIFIED GLASS         (   17%)
             Size(mm):    .01-1.2  Morphology: INTERSTITIAL

             APATITE                   (   .5%)
             Size(mm):     .05-.2  Morphology: NEEDLES
             FOUND IN GLASS*

Alteration - CLAY MINERALS             (   <1%)
             Location: VESICLES,      Replacing: GLASS
             Location: INTERSTITIAL
             Location: MATERIAL

Vesicles   -
             Size(mm):  1.1-2.8
             Percent:     1
             Filling: CLAY+DEVT.GLASS
             Shape: ELONGATED,

             Shape: OVAL
             SEGREGATION VESICLES,BAND OF REXTLLIZED PLAG AND
             CPX SURROUNDING VESICLES*




Leg : 82    Top/Bottom Interval(mm):  220/   0  Describer: Brannon, J.
Hole: 557   Top of Core Depth(m)   :     0.00   Rock Type: IGNEOUS
Core: H 1   Sample Midpoint(m)     :     2.07   Sect/Pc #: CC/

ROCK = PLAG SPARSELY PHYRIC BASALT;
       Texture: SPARSELY PHYRIC,HYALOPHITIC,VESICULAR;
       Where sampled: NEXT TO GLASSY MARGIN*

Phenocrysts- PLAGIOCLASE               (    1%)
             Size(mm):     .8-1.7  Morphology: LATHS
             MICROPHENOS,APPROX COMP AN54*

Groundmass - PLAGIOCLASE               (   25%)
             Size(mm):    .01-.05  Morphology: MICROLITHS,LATHS
             SIZE RANGE ALSO INCLUDES .2-.6MM,MICROLITHS
             ASSOCIATED WITH VESICLE BORDERS;

             CLINOPYROXENE             (   20%)
             Size(mm):      .2-.6  Morphology: PRISMATIC

             MAGNETITE                 (    5%)
             Size(mm):      .1-.2  Morphology: EQUANT

             ILMENITE                  (    4%)
             Size(mm):      .2-.6  Morphology: ACICULAR,SKELETAL

             MESOSTASIS                (   15%)

Vesicles   -
             Size(mm):  .03-3.6
             Percent:    30
             Filling: NONE
             Shape: CIRCULAR-

             Shape: IRREGULAR

Introduction

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]

These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 1989 and modified in 2000 by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center (now part of the National Centers for Environmental Information), and collocated World Data Center for Marine Geology and Geophysics, Boulder (now part of the World Data Service for Geophysics). Data were compiled in cooperation with the U.S. Science Support Program, of the Joint Oceanographic Institutions, Inc. (now the Consortium for Ocean Leadership), and the U.S. National Science Foundation.

Please see NOAA's privacy and disclaimer information. Send questions or comments to mgg.info@noaa.gov.

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