Core Data from the Deep Sea Drilling Project

Leg : 70    Top/Bottom Interval(mm):  120/ 140  Describer: Laverne, C.
Hole: 507C  Top of Core Depth(m)   :    24.50   Rock Type: IGNEOUS
Core:   2   Sample Midpoint(m)     :    24.63   Sect/Pc #:  1/PCE 30

ROCK = OL-PLAG SPARSELY PHYRIC BASALT;
       Texture: SPARSELY PHYRIC,HYALOPILITIC;
       Where sampled: FLOW INTERIOR*

Phenocrysts- PHENOCRYSTS               (  <<1%)
             Size(mm):         .2  Morphology: EUHEDRAL
             PHENOS ID UNCERTAIN(OL?,PLAG?)*

Groundmass - PLAGIOCLASE               (   45%)
             Size(mm):     .08-.5  Morphology: MICROLITES

             CLINOPYROXENE             (   25%)
             Size(mm):    .02-.05  Morphology: ANHEDRAL

             MAGNETITE                 (    4%)

             GLASS                     (   12%)
             Size(mm):       .005  Morphology: SKELETAL

Alteration - SMECTITE                  (    3%)
             Location: VESICLES+SOME  Replacing: GLASS
             Location: INTERSTITIAL
             ID UNCERTAIN FOR GLASS REPLACEMENT;

             FERROUS HYDROX MINS       (    4%)
             OFTEN ASSOCIATED WITH SMECTITE*

Vesicles   -
             Size(mm):       .1
             Percent:     7
             Location: SCATTERED
             Filling: EMPTY CENTERS,
             Shape: ROUND

             Filling: SMEC+FE.HYDRX

             Filling: ON RIMS




Leg : 70    Top/Bottom Interval(mm):  120/ 140  Describer: Laverne, C.
Hole: 507C  Top of Core Depth(m)   :    27.50   Rock Type: IGNEOUS
Core:   3   Sample Midpoint(m)     :    27.63   Sect/Pc #:  1/PCE 32

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

Groundmass - PLAGIOCLASE               (   50%)
             Size(mm):     .3X.01  Morphology: MICROLITES

             CLINOPYROXENE             (   30%)
             Size(mm):    .05X.03  Morphology: ANHEDRAL

             MAGNETITE                 (    8%)
             Size(mm):        .02  Morphology: SKELETAL OR ROUND

             GLASS                     (    7%)

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




Leg : 70    Top/Bottom Interval(mm):  310/ 350  Describer: Laverne, C.
Hole: 507C  Top of Core Depth(m)   :    27.50   Rock Type: IGNEOUS
Core:   3   Sample Midpoint(m)     :    27.83   Sect/Pc #:  1/PCE 36

ROCK = PLAG SPARSELY PHYRIC BASALT;
       Texture: SPARSELY PHYRIC,HYALOPILITIC-AXIOLITIC;
       Where sampled: NEXT TO GLASSY MARGIN*

Phenocrysts- PLAGIOCLASE               (    2%)
             Size(mm):      .5X.3  Morphology: LARGE LATHS

Groundmass - PLAGIOCLASE               (   30%)
             Size(mm):     .01X.2  Morphology: MICROLITES

             CLINOPYROXENE             (   28%)
             Size(mm):     .02X.1  Morphology: ANHEDRAL

             MAGNETITE                 (   20%)
             Size(mm):        .01  Morphology: SKELETAL
             SCATTERED OR NEAR VESICLES;

             GLASS                     (   15%)

Alteration - SMECTITE                  (   10%)
             Location: ALTERED RIM-   Replacing: GLASS
             Location: VESICLES

             FERROUS HYDROX MINS       (    5%)
             Location: ALTERED RIM-   Replacing: GLASS
             Location: VESICLES

Vesicles   -
             Size(mm):      .15
             Percent:     5
             Location: SCATTERED
             Filling: EMPTY CENTERS+

             Filling: SMEC AND/OR FE.

             Filling: HYDRX IN

             Filling: ALTERED RIMS

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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