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Core Data from the Deep Sea Drilling Project


Leg : 38    Top/Bottom Interval(mm):  730/ 750  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   361.74   Sect/Pc #:  2/

ROCK = OL-PLAG MOD PHYRIC BASALT
       HIGHLY ALTERED(ALBITIZED,CHLORITIZED,
       CARBONATIZED);
       Texture: MOD PHYRIC,HYALO-OPHITIC,TRACHYTOID,GLASSY
       CLEAR ALTERED GLASSY MAKES UP 30% OF TEXTURE*

Phenocrysts- OLIVINE                   (    3%)
             ALTERED;

             PLAGIOCLASE               (    2%)
             ALTERED*

Groundmass - OLIVINE                   (    5%)
             Size(mm):      .01-1

             PLAGIOCLASE               (   40%)
             GLOMEROPHYRIC CLUSTERS;

             PYROXENE                  (   20%)
             ID UNCERTAIN FOR PYX;

             OPAQUE MINERALS           (    2%)
             INCLUDES MAGN+ILMENITE*

Alteration - CHLORITE
             Location: GROUNDMASS     Replacing: PHENOS

             ALBITE
             Location: GROUNDMASS     Replacing: PHENOS

             CARBONATE
             Location: GROUNDMASS     Replacing: PHENOS

             ZEOLITE
             Location: GROUNDMASS     Replacing: PHENOS

             SPHENE
             Location: GROUNDMASS     Replacing: PHENOS
             ID UNCERTAIN FOR SPHENE*

Vesicles   -
             Size(mm):       .3
             Percent:     2
             Filling: CHLORITE+CARB+Z
             Shape: EOLITE




Leg : 38    Top/Bottom Interval(mm):  900/ 930  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   361.92   Sect/Pc #:  2/PCE 2

ROCK = BASALTIC BRECCIA
       ANGULAR FRAGMENTS OF CARBONATIZED ROCK(BASALT);




Leg : 38    Top/Bottom Interval(mm): 1080/1100  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   362.09   Sect/Pc #:  2/PCE 3

ROCK = TUFF BRECCIA
       CALCITIZED TUFF BRECCIA WITH SMALL ANGULAR AND
       ROUND FRAGMENTS OF BASALT,ZEOLITES,CHLORITE AND
       PALAGONITE;




Leg : 38    Top/Bottom Interval(mm): 1420/1450  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   362.44   Sect/Pc #:  2/PCE 6

ROCK = BASALTIC BRECCIA
       BRECCIA WITH COARSE FRAGMENTS OF BASALT AND
       ROUND FRAGMENTS OF PALAGONITE AND XTLS OF PLAG;




Leg : 38    Top/Bottom Interval(mm):  180/ 210  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   362.70   Sect/Pc #:  3/PCE 3

ROCK = BASALTIC BRECCIA
       SAME AS 14-2-73-75;




Leg : 38    Top/Bottom Interval(mm):  390/ 410  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   362.90   Sect/Pc #:  3/PCE 6

ROCK = BASALTIC BRECCIA
       ANGULAR FRAGMENTS OF HYALOBASALT,ROUND GRAINS OF
       PALAGONITE,CEMENTED BY CHLORITE,CALCITE AND
       SMECTITE;




Leg : 38    Top/Bottom Interval(mm):  440/ 470  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   362.96   Sect/Pc #:  3/PCE 6

ROCK = BASALTIC BRECCIA
       SAME AS 14-3-39-41;




Leg : 38    Top/Bottom Interval(mm):  840/ 870  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   363.36   Sect/Pc #:  3/PCE 12

ROCK = BASALTIC BRECCIA
       ANGULAR AND ROUND FRAGMENTS OF HYALOBASALT,
       CARBONATIZED BASALT,ISOTROPIC CLAYISH ROCK, BASALT
       FRAGMENTS HAVE CHLORITE-SMECTITE-ZEOLITE EDGES
       WITH A PALAGONITE CEMENT-ISOTROPIC ZEOLITE(?)-
       CALCITE;




Leg : 38    Top/Bottom Interval(mm): 1350/1380  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   359.50   Rock Type: IGNEOUS
Core:  14   Sample Midpoint(m)     :   363.87   Sect/Pc #:  3/PCE 18

ROCK = BASALTIC BRECCIA
       SAME AS 14-3-84-87, CEMENT IS CALCITIZED SANDY-
       SILT WITH ROUND FRAGMENTS OF ISOTROPIC CLAY-FE-
       PYRITE(?);




Leg : 38    Top/Bottom Interval(mm):  740/ 770  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: SEDIMENTARY
Core:  16   Sample Midpoint(m)     :   379.26   Sect/Pc #:  1/PCE 1

ROCK = TUFF
       CALCITIZED TUFF WITH SMALL PIECE OF CHLORITE-
       ZEOLITE,VOLCANIC GLASS,BASALT WITH XTLS AND
       ISOTROPIC CEMENT;




Leg : 38    Top/Bottom Interval(mm): 1120/1151  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   379.64   Sect/Pc #:  1/

ROCK = BASALT*

Groundmass - OLIVINE                   (    3%)

             PYROXENE                  (   40%)

             PLAGIOCLASE               (   42%)

             IRON ORE                  (   10%)

             ALTERED GLASS             (    5%)
             PLUS MESOSTASIS, % BY MODAL ANALYSES*




Leg : 38    Top/Bottom Interval(mm): 1120/1170  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   379.65   Sect/Pc #:  1/PCE 6

ROCK = AUGITE-OL-PLAG MOD PHYRIC BASALT
       DOLERITE-BASALT;
       Texture: MOD PHYRIC,SUBOPHITIC,TRACHYTOID*

Phenocrysts- OLIVINE                   (    1%)
             ALTERED;

             AUGITE                    (    2%)

             PLAGIOCLASE               (    1%)

Groundmass - OLIVINE                   (    2%)

             PLAGIOCLASE               (40-50%)
             Size(mm):       .1-1
             GLOMEROPHYRIC CLUSTERS;

             ORTHOPYROXENE             (40-50%)
             Size(mm):     .01-.1  Morphology: SUBHEDRAL+EUHEDRAL
             WITH POIKILITIC PLAG;

             OPAQUE MINERALS           (    5%)
             INCLUDES MAGN+ILMENITE*




Leg : 38    Top/Bottom Interval(mm): 1140/1170  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   379.66   Sect/Pc #:  1/PCE 6

ROCK = AUGITE-OL-PLAG MOD PHYRIC BASALT
       SAME AS 16-1-112-117;

Phenocrysts- PLAGIOCLASE
             APPROX COMP AN72*




Leg : 38    Top/Bottom Interval(mm):  300/ 330  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   380.32   Sect/Pc #:  2/PCE 5

ROCK = BASALT;

Groundmass - MAGNETITE                 (    6%)

             PYROXENE
             Size(mm):     .01-.1
             TWINNED ORTHOPYX WITH POIKILITIC PLAG;

             PLAGIOCLASE
             Size(mm):       .1-1
             GLOMEROPHYRIC CLUSTERS*




Leg : 38    Top/Bottom Interval(mm): 1150/1180  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   381.17   Sect/Pc #:  2/PCE 14

ROCK = BASALT
       SAME AS 16-2-30-33(DOLERITE-BASALT) BUT WITH
       ALBITE(?) IN AMYGDULES;




Leg : 38    Top/Bottom Interval(mm): 1340/1370  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   381.36   Sect/Pc #:  2/PCE 19

ROCK = BASALT
       SIMILAR TO 16-2-115-118;
       Texture: SUBOPHITIC,TRACHYTOID,GLASSY
       WITH POIKILITIC PLAG*
       FRESH,BROWN GLASSY MAKES UP 3% OF TEXTURE*

Groundmass - PLAGIOCLASE
             Size(mm):       .1-1
             GLOMEROPHYRIC CLUSTERS;

             ORTHOPYROXENE




Leg : 38    Top/Bottom Interval(mm):  130/ 161  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   381.65   Sect/Pc #:  3/

ROCK = BASALT*

Groundmass - OLIVINE                   (   TR%)

             PYROXENE                  (   40%)

             PLAGIOCLASE               (   42%)

             IRON ORE                  (    8%)

             ALTERED GLASS             (   10%)
             PLUS MESOSTASIS, % BY MODAL ANALYSES*




Leg : 38    Top/Bottom Interval(mm):  130/ 200  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   381.67   Sect/Pc #:  3/PCE 2

ROCK = PLAG-AUGITE SPARSELY PHYRIC BASALT
       SAME AS 16-2-134-137 BUT MORE COARSE-GRAINED;
       Texture: SPARSELY PHYRIC,GLASSY
       ALTERED GLASSY MAKES UP 10% OF TEXTURE*

Phenocrysts- AUGITE                    (    1%)
             Size(mm):        >.5
             ALTERED;

             PLAGIOCLASE               (    1%)
             ALTERED*

Groundmass - PLAGIOCLASE               (45-55%)
             Morphology: ROUND

             PYROXENE                  (40-45%)
             GLOMEROPHYRIC OPX WITH POIKILITIC PLAG;

             OPAQUE MINERALS           (    5%)
             INCLUDES MAGN+ILMENITE*

Alteration - SMECTITE
             Replacing: PHENOS

             SMECTITE                  (15-20%)
             Location: GROUNDMASS




Leg : 38    Top/Bottom Interval(mm):  450/ 470  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   381.96   Sect/Pc #:  3/PCE 5

ROCK = MOD PHYRIC BASALT
       SAME AS 16-3-13-20;
       Texture: MOD PHYRIC*

Phenocrysts- PHENOCRYSTS               (    2%)
             Size(mm):        >.5

             PHENOCRYSTS               (    3%)
             Size(mm):        <.5

Groundmass - OPAQUE MINERALS           (    5%)
             INCLUDES MAGN+ILMENITE;

             PLAGIOCLASE
             GLOMEROPHYRIC CLUSTERS;

             PYROXENE
             2V=70 DEG.,OPX ALTERED TO SMECTITE*

Alteration - AMPHIBOLE
             Replacing: PHENOS

             SMECTITE                  (15-20%)
             Location: GROUNDMASS

Vesicles   -
             Size(mm):       .3
             Percent:     1
             Filling: SMECTITE




Leg : 38    Top/Bottom Interval(mm):  490/ 510  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   382.00   Sect/Pc #:  3/PCE 5

ROCK = AUGITE-PLAG MOD PHYRIC BASALT
       SAME AS 16-3-44-47;
       Texture: SUBOPHITIC,TRACHYTOID,GLASSY
       ALTERED GLASSY MAKES UP 5% OF TEXTURE*

Phenocrysts- AUGITE                    (    3%)
             ALTERED;

             PLAGIOCLASE               (    2%)
             ALTERED*

Groundmass - PLAGIOCLASE               (45-50%)

             PYROXENE                  (40-45%)

             OPAQUE MINERALS           (    4%)
             INCLUDES MAGN+ILMENITE*

Alteration - SMECTITE
             Location: GROUNDMASS     Replacing: PHENOS+GLASS

             CARBONATE
             Replacing: PHENOS




Leg : 38    Top/Bottom Interval(mm):  730/ 760  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   382.25   Sect/Pc #:  3/PCE 7

ROCK = OL SPARSELY PHYRIC BASALT
       SIMILAR TO 16-3-49-51;
       Texture: SPARSELY PHYRIC*

Phenocrysts- OLIVINE                   (    2%)
             ALTERED*

Groundmass - OPAQUE MINERALS           (    5%)
             INCLUDES MAGN+ILMENITE;

             PLAGIOCLASE
             GLOMEROPHYRIC CLUSTERS,APPROX COMP LABRADORITE*

Vesicles   -
             Size(mm):       .3
             Percent:   0-1
             Filling: SMECTITE+CARB




Leg : 38    Top/Bottom Interval(mm): 1010/1030  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   382.52   Sect/Pc #:  3/

ROCK = OL-PLAG MOD PHYRIC BASALT;
       Texture: MOD PHYRIC,SUBOPHITIC,GLASSY
       BROWN LIGHTLY ALTERED GLASSY MAKES UP 5% OF TEX*

Phenocrysts- OLIVINE                   (    2%)
             ALTERED;

             PLAGIOCLASE               (    2%)

Groundmass - PLAGIOCLASE               (40-50%)
             Size(mm):       .1-1
             GLOMEROPHYRIC CLUSTERS,EXT.ANG. PERP. TO (010)=38
             DEG.,APPROX COMP AN68-72;

             PYROXENE                  (40-50%)
             Size(mm):    .01-0.5
             POIKILITIC TO PLAG,2V=70-80-85 DEG,TWINNED AUGITE,
             OPX=20%;

             MAGNETITE                 (  3-5%)

             PYRITE                    (  0-1%)

Alteration - SMECTITE
             Replacing: PHENOS

             CHLORITE
             Replacing: PHENOS

Vesicles   -
             Size(mm):    .5-.8
             Percent:     1
             Filling: CHLORITE+CARB




Leg : 38    Top/Bottom Interval(mm): 1470/1490  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   382.98   Sect/Pc #:  3/PCE 16

ROCK = OL-AUGITE-PLAG MOD PHYRIC BASALT
       SAME AS 16-3-101-103;
       Texture: MOD PHYRIC,SUBOPHITIC,TRACHYTOID,GLASSY
       ALTERED GLASSY MAKES UP 5% OF TEXTURE*

Phenocrysts- OLIVINE                   (    2%)
             ALTERED;

             AUGITE                    (    2%)
             ALTERED;

             PLAGIOCLASE               (    2%)

Groundmass - PLAGIOCLASE
             GLOMEROPHYRIC CLUSTERS,ZONED;

             PYROXENE
             2V=65-70 DEG.*

Alteration - SMECTITE
             Replacing: PHENOS+GLASS

             AMPHIBOLE
             Replacing: PHENOS




Leg : 38    Top/Bottom Interval(mm): 1470/1491  Describer: Kharin, G.
Hole: 350   Top of Core Depth(m)   :   378.50   Rock Type: IGNEOUS
Core:  16   Sample Midpoint(m)     :   382.98   Sect/Pc #:  3/

ROCK = BASALT*

Groundmass - OLIVINE                   (    3%)

             PYROXENE                  (   35%)

             PLAGIOCLASE               (   45%)

             IRON ORE                  (   10%)

             ALTERED GLASS             (    7%)
             PLUS MESOSTASIS, % BY MODAL ANALYSES*




    

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.

Department of Commerce > NOAA > NESDIS > NCEI > doi:10.7289/V54M92G2