Core Data from the Deep Sea Drilling Project

Leg : 70    Top/Bottom Interval(mm):  100/ 150  Describer: Laverne, C.
Hole: 508B  Top of Core Depth(m)   :    51.50   Rock Type: IGNEOUS
Core:   3   Sample Midpoint(m)     :    51.63   Sect/Pc #:  1/PCE 39

ROCK = PLAG-CPX MOD PHYRIC BASALT;
       Texture: MOD PHYRIC,GLOMEROPHYRIC;
       Where sampled: PILLOW OR FLOW INTERIOR*

Phenocrysts- PLAGIOCLASE               (    5%)
             Size(mm):      .7X.2  Morphology: LATHY
             OFTEN ZONED;

             CLINOPYROXENE             (    3%)
             Size(mm):   .5-.8X.2  Morphology: SUBHEDRAL
             CLUSTERS OF PLAG+CPX INTERGROWN*

Groundmass - PLAGIOCLASE               (   45%)
             Size(mm):     .5X.01  Morphology: MICROLITES
             TWO SIZES-OTHER IS .08X.005MM;

             CLINOPYROXENE             (   32%)
             Size(mm):   .008-.16  Morphology: MICROLITES OR ANHEDRAL EQUANT

             MAGNETITE                 (    7%)
             Size(mm):        .02  Morphology: SKELETAL

             GLASS                     (    4%)
             PERCENTAGE UNCERTAIN;

             PYRITE                    (   <1%)

Alteration - SMECTITE
             Location: ALTERED RIM-
             Location: VESICLES OR
             Location: IRREG. VOIDS

Vesicles   -
             Size(mm):     .025
             Percent:   2-3
             Location: SCATTERED
             Filling: SMEC OR EMPTY
             Shape: ROUND




Leg : 70    Top/Bottom Interval(mm):   00/  80  Describer: Laverne, C.
Hole: 508B  Top of Core Depth(m)   :    57.50   Rock Type: IGNEOUS
Core:   4   Sample Midpoint(m)     :    57.54   Sect/Pc #:  1/PCE 44

ROCK = APHYRIC BASALT;
       Texture: APHYRIC,HYALOPILITIC(FLOW BANDING);
       Where sampled: NEXT TO GLASSY MARGIN*

Groundmass - PLAGIOCLASE               (   42%)
             Size(mm):     .1X.01  Morphology: MICROLITES

             CLINOPYROXENE             (   35%)
             Size(mm):    .08X.02  Morphology: MICROLITES OR ANHEDRAL

             MAGNETITE                 (   15%)
             Size(mm):        .02  Morphology: SKELETAL

             GLASS                     (    3%)
             ID UNCERTAIN FOR GLASS*

Alteration - SMECTITE
             Location: ALTERED RIM    Replacing: VESICLES+MYAROLITIC VOIDS

             ZEOLITE                   (  <<1%)
             ID UNCERTAIN FOR ZEOLITES,LENGTH .001MM,MAY BE
             AGAINST THE BORDER OF THE VESICLES*

Vesicles   -
             Size(mm):   .01-.4
             Percent:     5
             Location: SCATTERED
             Filling: SMEC OR EMPTY
             Shape: ROUND OR

             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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