Core Data from the Deep Sea Drilling Project

Leg : 49    Top/Bottom Interval(mm):   10/ 100  Describer: DSDP microfilm
Hole: 412   Top of Core Depth(m)   :   156.00   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   165.38   Sect/Pc #: CC/PCE 1

ROCK = CPX-PLAG-OL PHYRIC BASALT;
       Texture: HOLOCRYSTALLINE,INTERGRANULAR,PHYRIC;
       Where sampled: FLOW INTERIOR*

Phenocrysts- CLINOPYROXENE             (  1-5%)
             FRESH,ZONED,RESORBED;

             PLAGIOCLASE               (  1-5%)
             FRESH,APPROX COMP AN75,NORMAL ZONING;

             OLIVINE                   (   <1%)
             FRESH*

Groundmass - GLASS                     (   10%)
             ALTERED;

             PLAGIOCLASE               (   40%)

             CLINOPYROXENE             (   35%)

             OPAQUE MINERALS           (  2-3%)
             INCLUDES MAGN+ILMENITE*

Alteration - CARBONATE
             Replacing: GLASS




Leg : 49    Top/Bottom Interval(mm):  370/ 420  Describer: DSDP microfilm
Hole: 412   Top of Core Depth(m)   :   156.00   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   165.72   Sect/Pc #: CC/PCE 5

ROCK = OL-CPX-PLAG SP MICROPHYRIC BASALT;
       Texture: GLASSY,SP MICROPHYRIC,SERIATE*

Phenocrysts- OLIVINE                   (   <1%)
             FRESH;

             CLINOPYROXENE             (   <1%)
             FRESH,CLOTS PRESENT;

             PLAGIOCLASE               (   <1%)
             FRESH,CLOTS PRESENT*

Groundmass - GLASS                     (   90%)
             ALTERED,ALSO GRANULAR OP.MINS AND CPX SHEAVES IN
             GROUNDMASS*




Leg : 49    Top/Bottom Interval(mm):  460/ 600  Describer: DSDP microfilm
Hole: 412   Top of Core Depth(m)   :   156.00   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   165.85   Sect/Pc #: CC/PCE 6

ROCK = PLAG-CPX SP PHYRIC BASALT;
       Where sampled: FLOW INTERIOR;
       Texture: SP PHYRIC*

Phenocrysts- CLINOPYROXENE             (   <1%)
             FRESH;

             PLAGIOCLASE               (   <1%)
             FRESH,NORMALLY ZONED,APPROX COMP AN75*

Groundmass - PLAGIOCLASE

             CLINOPYROXENE

Alteration - CHLORITE
             Replacing: GROUNDMASS




Leg : 49    Top/Bottom Interval(mm):  500/ 560  Describer: DSDP microfilm
Hole: 412   Top of Core Depth(m)   :   165.50   Rock Type: IGNEOUS
Core:  15   Sample Midpoint(m)     :   166.03   Sect/Pc #:  1/PCE 6

ROCK = PLAG-CPX SP PHYRIC BASALT
       CF CORE 14CC,PCE 6;




Leg : 49    Top/Bottom Interval(mm):  620/ 680  Describer: DSDP microfilm
Hole: 412   Top of Core Depth(m)   :   165.50   Rock Type: IGNEOUS
Core:  15   Sample Midpoint(m)     :   166.15   Sect/Pc #:  1/PCE 7

ROCK = PLAG-CPX SP PHYRIC BASALT;
       Texture: INTERGRANULAR,PHYRIC;
       Where sampled: FLOW INTERIOR*

Phenocrysts- CLINOPYROXENE             (  1-5%)
             ZONED;

             PLAGIOCLASE               (   >5%)
             ZONED,APPROX COMP AN72-63*

Groundmass - OLIVINE                   (   TR%)

Vesicles   -
             Size(mm):      3-5
             Percent:    20

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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