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Core Data from the Deep Sea Drilling Project


Leg : 38    Top/Bottom Interval(mm):    0/   0  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   453.50   Rock Type: IGNEOUS
Core:  37   Sample Midpoint(m)     :   455.10   Sect/Pc #: CC/

ROCK = BIOTITE MOD PHYRIC MUGEARITE
       STRONGLY WEATHERED AND CHLORITIZED ALKALIBASALT
       (TRACHYDOLERITE);
       Texture: DOLERITIC*

Phenocrysts- BIOTITE                   (  3-5%)
             Size(mm):        <.5

Groundmass - PLAGIOCLASE               (   45%)

             PYROXENE                  (   40%)

             MAGNETITE                 (    5%)

Alteration - CHLORITE                  (    3%)
             Location: VEINS+PHENOS   Replacing: PHENOS

             HEMATITE                  (    2%)
             Replacing: PHENOS

             HEMATITE                  (10-15%)
             Location: GROUNDMASS

Vesicles   -
             Filling: CHLORITE




Leg : 38    Top/Bottom Interval(mm):   80/ 100  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   484.59   Sect/Pc #:  1/PCE 1

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

Phenocrysts- OLIVINE                   (  1-2%)
             Size(mm):        <.5
             ALTERED;

             AUGITE                    (  2-3%)

Groundmass - PLAGIOCLASE               (35-40%)

             PYROXENE                  (40-45%)

             MAGNETITE                 (    5%)

Alteration - CHLORITE
             Replacing: PHENOS

             CHLOROPHAEITE
             Replacing: PHENOS




Leg : 38    Top/Bottom Interval(mm):  100/ 131  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   484.62   Sect/Pc #:  1/

ROCK = BASALT
       SOURCE IS IR FOR ALL LEG 38 THIN SECTIONS WHERE
       PERCENTAGES ARE FROM MODAL ANALYSES*

Groundmass - OLIVINE                   (   TR%)

             PYROXENE                  (   50%)

             PLAGIOCLASE               (   35%)

             IRON ORE                  (   10%)

             ALTERED GLASS             (    5%)
             ALTERED GLASS+MESOSTASIS;

             OTHER                     (   TR%)
             ACCESSORIES,PERCENTAGES BY MODAL ANALYSES*




Leg : 38    Top/Bottom Interval(mm):  850/ 881  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   485.37   Sect/Pc #:  1/

ROCK = BASALT*

Groundmass - OLIVINE                   (   TR%)

             PYROXENE                  (   35%)

             PLAGIOCLASE               (   45%)

             IRON ORE                  (   10%)

             ALTERED GLASS             (   10%)
             ALTERED GLASS+MESOSTASIS;

             OTHER                     (   TR%)
             ACCESSORIES,% BY MODAL ANALYSES*




Leg : 38    Top/Bottom Interval(mm): 1100/1200  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   485.65   Sect/Pc #:  1/

ROCK = OL-BIOTITE-AUGITE-OR-HBL MOD PHYRIC
       Texture: HYDOLERITE
       TRACHYDOLERITE-BASALT;
       Texture: DOLERITIC*

Phenocrysts- OLIVINE                   (    3%)
             ALTERED;

             AUGITE                    (    2%)

             BIOTITE                   (  2-3%)

             ORTHOCLASE
             ID UNCERTAIN FOR ORTHOCLASE;

             HORNBLENDE
             ID UNCERTAIN FOR HORNBLENDE*

Groundmass - OLIVINE                   (  2-3%)

             PLAGIOCLASE               (40-45%)

             PYROXENE                  (40-45%)

             MAGNETITE                 (  2-3%)

Alteration - CHLORITE
             Replacing: PHENOS

             CHLOROPHAEITE
             Replacing: PHENOS




Leg : 38    Top/Bottom Interval(mm): 1330/1360  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   485.85   Sect/Pc #:  1/PCE 14

ROCK = OL-AUGITE-PLAG-OR MOD PHYRIC TRACHYDOLERITE
       TRACHY(?)DOLERITE;
       Texture: DOLERITIC*

Phenocrysts- OLIVINE                   (  2-3%)
             ALTERED;

             AUGITE                    (  1-2%)

             PLAGIOCLASE               (  1-2%)

             ORTHOCLASE

Groundmass - PLAGIOCLASE               (45-50%)
             Size(mm):       .1-1

             PYROXENE                  (40-45%)

             MAGNETITE                 (  5-7%)

Alteration - CHLORITE                  (   10%)
             Location: VEINS+PHENOS   Replacing: PHENOS

             CHLOROPHAEITE
             Replacing: PHENOS




Leg : 38    Top/Bottom Interval(mm): 1470/1501  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   485.99   Sect/Pc #:  1/

ROCK = BASALT*

Groundmass - OLIVINE                   (   TR%)

             PYROXENE                  (   40%)

             PLAGIOCLASE               (   50%)

             IRON ORE                  (    5%)

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




Leg : 38    Top/Bottom Interval(mm):    0/   0  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   484.50   Rock Type: IGNEOUS
Core:  41   Sample Midpoint(m)     :   486.10   Sect/Pc #: CC/

ROCK = AUGITE-OL PHYRIC DOLERITE
       INTRUSIVE DIKE;
       Texture: DOLERITIC*

Phenocrysts- OLIVINE                   (    2%)
             ALTERED

             AUGITE                    (    8%)
             FRESH(3%) AND ALTERED(5%)*

Groundmass - PLAGIOCLASE               (   60%)
             Size(mm):     .01-.1

             PYROXENE                  (   35%)

             MAGNETITE                 (  1-2%)

             OTHER                     (    4%)

Alteration - CHLORITE                  (   10%)
             Replacing: PHENOS

             CHLOROPHAEITE
             Replacing: PHENOS

             AMPHIBOLE                 (    1%)
             Replacing: PHENOS

             CHLORITE                  (10-15%)
             Location: GROUNDMASS

             CHLORITE                  (    5%)
             Location: VEINS

             CARBONATE                 (    5%)
             Location: VEINS

Vesicles   -
             Size(mm):    .1-.3
             Percent:     5




Leg : 38    Top/Bottom Interval(mm):  340/ 360  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   486.50   Rock Type: IGNEOUS
Core:  42   Sample Midpoint(m)     :   486.85   Sect/Pc #:  1/PCE 1

ROCK = DOLERITIC BRECCIA;

Groundmass - MAGNETITE                 ( 7-10%)

Alteration - CHLORITE
             Location: VEINS

             CALCITE
             Location: VEINS

             HEMATITE
             Location: VEINS




Leg : 38    Top/Bottom Interval(mm):  380/ 410  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   486.50   Rock Type: IGNEOUS
Core:  42   Sample Midpoint(m)     :   486.90   Sect/Pc #:  1/PCE 1

ROCK = PLAG-AUGITE-OL-BIOTITE-OR MOD PHYRIC
       Texture: HYDOLERITE;
       Texture: DOLERITIC,SUBOPHITIC*

Phenocrysts- OLIVINE                   (    1%)
             ALTERED;

             AUGITE                    (  2-3%)

             PLAGIOCLASE               (  2-3%)

             BIOTITE

             ORTHOCLASE
             ID UNCERTAIN FOR ORTHOCLASE;

Groundmass - PLAGIOCLASE               (45-50%)

             PYROXENE                  (40-45%)

             MAGNETITE                 (  5-7%)

Alteration - CHLORITE                  (  2-3%)
             Location: VEINS+PHENOS   Replacing: PHENOS

             CHLOROPHAEITE
             Location: VEINS+PHENOS   Replacing: PHENOS

             CARBONATE
             Location: VEINS




Leg : 38    Top/Bottom Interval(mm): 1440/1460  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   486.50   Rock Type: IGNEOUS
Core:  42   Sample Midpoint(m)     :   487.95   Sect/Pc #:  1/PCE 13

ROCK = OL-AUGITE-PLAG DOLERITE;
       Texture: DOLERITIC*

Phenocrysts- OLIVINE                   (    3%)
             ALTERED;

             AUGITE                    (    1%)

             PLAGIOCLASE               (    1%)

Groundmass - PLAGIOCLASE               (50-55%)

             PYROXENE                  (   40%)

             MAGNETITE                 (  5-7%)

Alteration - CHLORITE
             Replacing: PHENOS+GLASS

             CHLOROPHAEITE
             Replacing: PHENOS

Vesicles   -
             Filling: GOETHITE




Leg : 38    Top/Bottom Interval(mm): 1440/1471  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   486.50   Rock Type: IGNEOUS
Core:  42   Sample Midpoint(m)     :   487.96   Sect/Pc #:  1/

ROCK = BASALT*

Groundmass - PYROXENE                  (   45%)

             PLAGIOCLASE               (   45%)

             IRON ORE                  (    5%)

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




Leg : 38    Top/Bottom Interval(mm): 1230/1261  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   496.00   Rock Type: IGNEOUS
Core:  43   Sample Midpoint(m)     :   497.25   Sect/Pc #:  1/

ROCK = BASALT*

Groundmass - OLIVINE                   (   TR%)

             PYROXENE                  (   43%)

             PLAGIOCLASE               (   35%)

             IRON ORE                  (   12%)

             ALTERED GLASS             (   10%)
             ALTERED GLASS+MESOSTASIS;

             OTHER                     (   TR%)
             ACCESSORIES,% BY MODAL ANALYSES*




Leg : 38    Top/Bottom Interval(mm):  930/ 950  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: METAMORPHIC
Core:  44   Sample Midpoint(m)     :   506.44   Sect/Pc #:  1/PCE 3

ROCK = BASALTIC MYLONITE
       ALTERED,CHLORITIZED;




Leg : 38    Top/Bottom Interval(mm):  950/   0  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: SEDIMENTARY
Core:  44   Sample Midpoint(m)     :   506.45   Sect/Pc #:  1/PCE 3

ROCK = CLAYSTONE
       CHLORITIZED RED CLAYSTONE WITH ALTERED,WEATHERED
       FRAGMENTS OF TRACHYDOLERITE AND TRACHYBASALT;




Leg : 38    Top/Bottom Interval(mm):  950/ 970  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: IGNEOUS
Core:  44   Sample Midpoint(m)     :   506.46   Sect/Pc #:  1/PCE 3

ROCK = BIOTITE-OL-OR MOD PHYRIC TRACHYDOLERITE;
       Texture: DOLERITIC*

Phenocrysts- OLIVINE                   (  2-3%)
             ALTERED;

             BIOTITE                   (  3-5%)

             ORTHOCLASE
             ID UNCERTAIN FOR ORTHOCLASE*

Groundmass - PLAGIOCLASE               (   50%)
             Size(mm):       .1-1

             PYROXENE                  (   40%)

             MAGNETITE                 (  2-3%)

Alteration - CHLORITE
             Location: VEINS+PHENOS+  Replacing: PHENOS
             Location: GROUNDMASS




Leg : 38    Top/Bottom Interval(mm):  950/ 971  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: IGNEOUS
Core:  44   Sample Midpoint(m)     :   506.46   Sect/Pc #:  1/

ROCK = BASALT*

Groundmass - OLIVINE                   (   TR%)

             PYROXENE                  (   45%)

             PLAGIOCLASE               (   40%)

             IRON ORE                  (    8%)

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




Leg : 38    Top/Bottom Interval(mm): 1100/1120  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: IGNEOUS
Core:  44   Sample Midpoint(m)     :   506.61   Sect/Pc #:  1/

ROCK = TRACHYBASALT
       ALTERED,CHLORITIZED,POROUS*

Groundmass - PLAGIOCLASE               (   50%)

             PYROXENE                  (   40%)

             MAGNETITE                 (    5%)

             BIOTITE                   (    5%)

Alteration - CHLORITE                  ( 5-10%)
             Location: GROUNDMASS




Leg : 38    Top/Bottom Interval(mm): 1430/1450  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: METAMORPHIC
Core:  44   Sample Midpoint(m)     :   506.94   Sect/Pc #:  1/

ROCK = BASALTIC MYLONITE
       NO DESCRIPTION*




Leg : 38    Top/Bottom Interval(mm):  580/ 600  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: IGNEOUS
Core:  44   Sample Midpoint(m)     :   507.59   Sect/Pc #:  2/

ROCK = TRACHYBASALT
       ALTERED,CHLORITIZED,ZEOLITIZED,AMYGDALOIDAL;
       Texture: DOLERITIC,SUBOPHITIC*

Groundmass - PLAGIOCLASE               (   50%)

             PYROXENE                  (   40%)

             MAGNETITE                 (  3-5%)

             BIOTITE                   (  3-5%)

Alteration - AMPHIBOLE                 (    3%)
             Replacing: PHENOS

             CHLORITE                  (    5%)
             Location: VEINS

             ZEOLITE                   (    5%)
             Location: VEINS

Vesicles   -
             Filling: CHLORITE+ZEOLIT
             Shape: E




Leg : 38    Top/Bottom Interval(mm):  710/ 741  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: IGNEOUS
Core:  44   Sample Midpoint(m)     :   507.73   Sect/Pc #:  2/

ROCK = BASALT*

Groundmass - OLIVINE                   (    3%)

             PYROXENE                  (   45%)

             PLAGIOCLASE               (   40%)

             IRON ORE                  (    7%)

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




Leg : 38    Top/Bottom Interval(mm):  720/ 740  Describer: Kharin, G.
Hole: 336   Top of Core Depth(m)   :   505.50   Rock Type: IGNEOUS
Core:  44   Sample Midpoint(m)     :   507.73   Sect/Pc #:  2/PCE 18

ROCK = OL-PLAG-BIOTITE MOD PHYRIC TRACHYBASALT
       AMYGDALOIDAL;
       Texture: DOLERITIC*

Phenocrysts- OLIVINE                   (  2-3%)
             Size(mm):        <.5
             ALTERED;

             PLAGIOCLASE               (  2-3%)
             ALTERED

             BIOTITE

Groundmass - OLIVINE                   (  2-3%)

             PLAGIOCLASE               (   40%)

             PYROXENE                  (45-50%)

             MAGNETITE                 (  3-5%)

             BIOTITE                   (  3-5%)

             OTHER                     (  3-5%)

Vesicles   -
             Filling: CHLORITE+CALCIT
             Shape: E
             AMYGDULES*




    

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