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Core Data from the Deep Sea Drilling Project


Leg : 38    Top/Bottom Interval(mm): 1070/1170  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   152.67
Core:   7   Top of Core Depth (m)  :   151.50
Sect:  1    Top of Section Depth(m):   152.57

LITHOLOGY: BASALT BRECCIA;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED, BRECCIATED, DRILL PEBBLES;

  Alteration : TRACES OF WEATHERING (OXIDATION);


Leg : 38    Top/Bottom Interval(mm): 1170/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   153.00
Core:   7   Top of Core Depth (m)  :   151.50
Sect:  1    Top of Section Depth(m):   152.67

LITHOLOGY: PLAG-PYX PHYRIC BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Structure  : RARE FISSURES CONTAINING DARK GREEN CHLORITE;

  Comments   : MEDIUM LIGHT GRAY (N6) TO MEDIUM DARK GRAY (N4);

  Vesicles   : Size(mm):      1-4   Percent:
               Location:            Filling: CHLORITE
               Shape   : IRREGULAR
               SMALL VESICLES SOMETIMES FILLED WITH GREEN
               CHLORITE;

  Phenocrysts: PLAGIOCLASE

               PYROXENE

  Replacement: CHLORITE


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   154.50
Core:   7   Top of Core Depth (m)  :   151.50
Sect:  2    Top of Section Depth(m):   153.00

LITHOLOGY: PLAG-PYX PHYRIC BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC, FINE TO MEDIUM-GRAINED;

  Structure  : RARE CALCITE VEINS 1-4MM THICK AT 28-30 & 98-130CM;

  Comments   : MEDIUM LIGHT GRAY (N6) TO MEDIUM DARK GRAY (N4);

  Vesicles   : Size(mm):   0.2-10   Percent:
               Location:            Filling: CHLORITE, CALCITE
               Shape   : IRREGULAR
               VESICLES SOMETIMES FILLED WITH WHITE CALCITE AND
               DARK GREEN CHLORITE--ON WALLS;

  Phenocrysts: PLAGIOCLASE
               Size(mm):        1-2

               PYROXENE
               Size(mm):        1-2

  Replacement: PYRITE
               SMALL PYRITE CRYSTALS;

               CALCITE

               CHLORITE


Leg : 38    Top/Bottom Interval(mm):   60/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   156.00
Core:   7   Top of Core Depth (m)  :   151.50
Sect:  3    Top of Section Depth(m):   154.56

LITHOLOGY: PLAG-PYX PHYRIC BASALT;
           SAME LITHOLOGY AS SEC 2;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Structure  : INTERVAL 40-47CM CONTAINS A FISSURE WITH BLUE-GRAY
               CHLORITE & SMALL NEEDLE CRYSTALS--PROBABLY ZEOLITE;

  Replacement: CHLORITE

               ZEOLITE


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   157.50
Core:   7   Top of Core Depth (m)  :   151.50
Sect:  4    Top of Section Depth(m):   156.00

LITHOLOGY: PLAG-PYX PHYRIC BASALT;
           SAME LITHOLOGY AS SECS 2&3;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Structure  : CHLORITE VEINS AT 60 & 120-150CM, CALCITE VEINS AT
               25 & 99-100CM;

  Comments   : GRAY (N4) TO GRAYISH BLACK (N2), DARKER THAN
               PREVIOUS SECTIONS;

  Replacement: CHLORITE

               CALCITE


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   159.00
Core:   7   Top of Core Depth (m)  :   151.50
Sect:  5    Top of Section Depth(m):   157.50

LITHOLOGY: PLAG-PYX PHYRIC BASALT;
           SAME LITHOLOGY AS SECS 2-4;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Structure  : RARE SLICKENSIDES WITH BLACK CHLORITE, INTERVAL
               48-55CM CONTAINS BRANCHING VEINS 2-3MM THICK OF
               WHITE CALCITE, INTERVAL 74-78CM CONTAINS ROUND AND
               ELLIPSOIDAL XENOLITH OF COARSE BASALT? WITH
               DIMENSIONS 3X1.5CM;

  Vesicles   : Size(mm):      2-4   Percent:
               Location:            Filling: EMPTY
               Shape   : IRREGULAR
               AT 100-105 & 125-150CM;

  Replacement: CHLORITE

               CALCITE


Leg : 38    Top/Bottom Interval(mm):  750/ 900  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   161.90
Core:   8   Top of Core Depth (m)  :   161.00
Sect:  1    Top of Section Depth(m):   161.75

LITHOLOGY: BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : DRILL PEBBLES;

  Alteration : WEATHERED, YELLOW OXIDATION CRUST;


Leg : 38    Top/Bottom Interval(mm):  900/1100  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   162.10
Core:   8   Top of Core Depth (m)  :   161.00
Sect:  1    Top of Section Depth(m):   161.90

LITHOLOGY: PHYRIC BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Structure  : THICK VEINS OF WHITE CALCITE;

  Replacement: CALCITE


Leg : 38    Top/Bottom Interval(mm): 1100/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   162.50
Core:   8   Top of Core Depth (m)  :   161.00
Sect:  1    Top of Section Depth(m):   162.10

LITHOLOGY: PLAG-PYX PHYRIC BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Comments   : DARK GRAY (N3);

  Vesicles   :
               Location:            Filling: CHLORITE, CALCITE
               RARE AMYGDULES OF GREEN & DARK GREEN CHLORITE &
               WHITE CALCITE;

               Size(mm):            Percent:   2-3
               Location:            Filling: EMPTY
               Shape   : IRREGULAR
               RARE VESICLES WITH THIN CRUST OF BLUE CHLORITE;

  Phenocrysts: PLAGIOCLASE

               PYROXENE

  Replacement: CALCITE

               CHLORITE


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   164.00
Core:   8   Top of Core Depth (m)  :   161.00
Sect:  2    Top of Section Depth(m):   162.50

LITHOLOGY: PLAG-PYX PHYRIC BASALT;
           SAME LITHOLOGY AS SEC 1;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Comments   : RARE SMALL PIECE OF COPPER AT 130-140CM WITH
               DIMENSIONS 0.5-1MM;

  Vesicles   :
               Location:            Filling: EMPTY
               BIG EMPTY VESICLES (2X3CM) AT 8-15CM, SMALL EMPTY
               VESICLES (1X2MM) AT 120-150CM;

               Location:            Filling: CALCITE
               WHITE CALCITE FILLS VESICLES BELOW 15CM;

  Replacement: CALCITE


Leg : 38    Top/Bottom Interval(mm):  100/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   165.50
Core:   8   Top of Core Depth (m)  :   161.00
Sect:  3    Top of Section Depth(m):   164.10

LITHOLOGY: PLAG-PYX PHYRIC BASALT;
           SAME LITHOLOGY AS SECS 1&2;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC, HOMOGENEOUS;

  Structure  : RARE THIN CALCITE VEINS, INTERVAL 139-143CM CONTAINS
               A XENOLITH OF COARSE IGNEOUS ROCK WITH DIMENSIONS
               3X4CM;

  Comments   : RARE SMALL PIECES OF COPPER THROUGHOUT;

  Vesicles   :
               Location:            Filling: EMPTY
               RARE SMALL VESICLES;

               Location:            Filling: CHLORITE, CALCITE
               AMYGDULES;

  Replacement: CHLORITE

               CALCITE


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 342   Sample Midpoint (m)    :   167.00
Core:   8   Top of Core Depth (m)  :   161.00
Sect:  4    Top of Section Depth(m):   165.50

LITHOLOGY: PLAG-PYX PHYRIC BASALT;
           SAME LITHOLOGY AS SECS 1-3;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : PHYRIC;

  Structure  : VERY RARE THIN CALCITE VEINS, THIN FISSURE CONTAINS
               BLACK CHLORITE AND NEEDLE-LONG CRYSTALS OF ZEOLITE?;

  Comments   : RARE SMALL IRREGULAR PIECES OF COPPER THROUGHOUT;

  Vesicles   : Size(mm):      1-3   Percent:
               Location:            Filling: EMPTY,
               Shape   : ROUNDED,

               Location:            Filling: CHLORITE, CALCITE
               Shape   : IRREGULAR
               SMALL IRREGULAR & ROUNDED VESICLES AT 80-130CM
               SOMETIMES FILLED WITH CALCITE & CHLORITE;

  Replacement: CHLORITE

               CALCITE


    

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