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Core Data from the Deep Sea Drilling Project


Leg : 38    Top/Bottom Interval(mm): 1080/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   379.00
Core:  34   Top of Core Depth (m)  :   377.50
Sect:  1    Top of Section Depth(m):   378.58

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED ON TOP TO MEDIUM-GRAINED ON BOTTOM,
               HOLOCRYSTALLINE;

  Structure  : WHITE CALCITE VEIN 4-8MM THICK WITH CALCITE CRYSTALS
               & PYRITE AT INTERVAL 143-150CM;

  Comments   : MEDIUM GRAY (N5);

  Vesicles   :
               Location:            Filling: CHLORITE
               RARE CHLORITE AMYGDULES;

  Replacement: PYRITE
               ABUNDANT PYRITE CRYSTALS, IN VEIN;

               CHLORITE

               CALCITE
               CRYSTALS & VEIN;


Leg : 38    Top/Bottom Interval(mm):  100/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   380.50
Core:  34   Top of Core Depth (m)  :   377.50
Sect:  2    Top of Section Depth(m):   379.10

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : MEDIUM-GRAINED;

  Structure  : ABUNDANT CALCITE VEINS 0.5-15MM THICK CONTAINING
               SMALL PYRITE CRYSTALS, RARE SLICKENSIDE NEAR 110CM
               WITH CALCITE & PYRITE ON WALLS;

  Comments   : MEDIUM GRAY (N5) TO DARK MEDIUM GRAY (N4);

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE


Leg : 38    Top/Bottom Interval(mm):  100/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   382.00
Core:  34   Top of Core Depth (m)  :   377.50
Sect:  3    Top of Section Depth(m):   380.60

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : MEDIUM-GRAINED, HOLOCRYSTALLINE;

  Structure  : ABUNDANT WHITE CALCITE VEINS WITH PYRITE CRYSTALS,
               SLICKENSIDES WITH PYRITE;

  Comments   : MEDIUM GRAY (N5) TO DARK MEDIUM GRAY (N4);

  Replacement: PYRITE
               PYRITIZATION, CRYSTALS;

               CALCITE
               CALCITIZATION, VEINS;


Leg : 38    Top/Bottom Interval(mm):  100/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   383.50
Core:  34   Top of Core Depth (m)  :   377.50
Sect:  4    Top of Section Depth(m):   382.10

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : HOLOCRYSTALLINE, MEDIUM-GRAINED ON TOP TO MEDIUM
               COARSE-GRAINED ON LOWER PART;

  Structure  : INTERVALS 10-40 & 50-53CM CONTAIN 2-3CM THICK VEIN
               WITH COARSE 0.5-1CM CALCITE CRYSTALS;

  Comments   : MEDIUM GRAY (N5) TO DARK MEDIUM GRAY (N4) WITH BLUE-
               GREEN IN PLACES;

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE
               CALCITIZATION, CRYSTALS;


Leg : 38    Top/Bottom Interval(mm):  750/1250  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   388.25
Core:  35   Top of Core Depth (m)  :   387.00
Sect:  1    Top of Section Depth(m):   387.75

LITHOLOGY: DIABASE;
           SAME LITHOLOGY AS CORE 34-4;


Leg : 38    Top/Bottom Interval(mm): 1250/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   388.50
Core:  35   Top of Core Depth (m)  :   387.00
Sect:  1    Top of Section Depth(m):   388.25

LITHOLOGY: DIABASE;

  Piece No.  : NO PIECE NUMBERS ASSIGNED;

  Texture    : DRILL PEBBLES;

  Structure  : CUT BY WHITE CALCITE VEINS;

  Replacement: CALCITE


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   390.00
Core:  35   Top of Core Depth (m)  :   387.00
Sect:  2    Top of Section Depth(m):   388.50

LITHOLOGY: DIABASE;
           SAME LITHOLOGY AS SEC 1;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : MEDIUM TO MEDIUM COARSE-GRAINED;

  Structure  : SLICKENSIDES AT 0-5 & 62-70 & 98-112CM, WHITE
               CALCITE VEINS WITH PYRITE AT 34-40 & 68-75 & 104-116
               & 123-136CM;

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

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE
               CALCITIZATION;


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   391.50
Core:  35   Top of Core Depth (m)  :   387.00
Sect:  3    Top of Section Depth(m):   390.00

LITHOLOGY: DIABASE;
           SAME LITHOLOGY AS SECS 1&2;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : MEDIUM TO MEDIUM COARSE-GRAINED, INTERVAL 110-115CM
               CONTAINS TWO FINE-GRAINED DRILL PEBBLES WITH
               ABUNDANT PYRITE;

  Structure  : SLICKENSIDE AT 93-103CM;

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE
               CALCITIZATION;


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   393.00
Core:  35   Top of Core Depth (m)  :   387.00
Sect:  4    Top of Section Depth(m):   391.50

LITHOLOGY: GABBRO-DIABASE;
           SAME LITHOLOGY AS SECS 1-3;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Structure  : SLICKENSIDE WITH CHLORITE AT 24-31CM;

  Comments   : MEDIUM DARK GRAY (N4) WITH DARKER & LIGHTER SMALL
               ROUND AREAS;

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE
               CALCITIZATION;

               CHLORITE


Leg : 38    Top/Bottom Interval(mm):  230/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   396.50
Core:  36   Top of Core Depth (m)  :   395.00
Sect:  1    Top of Section Depth(m):   395.23

LITHOLOGY: GABBRO-DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : HOMOGENEOUS, HOLOCRYSTALLINE, COARSE-GRAINED, MEDIUM
               COARSE GRAINED ON BOTTOM;

  Structure  : SLICKENSIDE AT 82-90CM;

  Comments   : MEDIUM GRAY (N5);

  Groundmass : PYROXENE
               Size(mm):        2-3
               BLACK PYX CRYSTALS (2-3MM);

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE
               LIGHT GRAY CALCITIZATION;


Leg : 38    Top/Bottom Interval(mm):   90/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   398.00
Core:  36   Top of Core Depth (m)  :   395.00
Sect:  2    Top of Section Depth(m):   396.59

LITHOLOGY: GABBRO-DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : HOMOGENEOUS, HOLOCRYSTALLINE, COARSE-GRAINED;

  Groundmass : PLAGIOCLASE
               Size(mm):        2-3
               SMALL PLAG LATHS;

               PYROXENE
               Size(mm):       5-10

  Replacement: PYRITE
               PYRITIZATION;

               CALCITE
               CALCITIZATION;


Leg : 38    Top/Bottom Interval(mm):  520/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   399.50
Core:  36   Top of Core Depth (m)  :   395.00
Sect:  3    Top of Section Depth(m):   398.52

LITHOLOGY: GABBRO-DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : HOLOCRYSTALLINE, COARSE-GRAINED;

  Structure  : SLICKENSIDES AT 98-105 & 143-150CM;

  Comments   : MEDIUM GRAY (N5) TO DARK GRAY WITH LIGHT & DARK
               ROUND AREAS;

  Groundmass : PLAGIOCLASE
               Size(mm):        2-5
               PLAG LATH;

               PYROXENE
               Size(mm):        3-8

  Replacement: PYRITE
               PYRITIZATION;


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   401.00
Core:  36   Top of Core Depth (m)  :   395.00
Sect:  4    Top of Section Depth(m):   399.50

LITHOLOGY: GABBRO-DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : COARSE-GRAINED;

  Structure  : SLICKENSIDE AT 14-18CM;

  Comments   : DARK GRAY TO MEDIUM DARK GRAY WITH LIGHT & DARK
               AREAS;

  Groundmass : PLAGIOCLASE
               PLAG LATHS;

               PYROXENE
               Size(mm):        5-7
               DARK CRYSTALS, INCREASINGLY PYX-RICH FROM
               80-150CM;

  Replacement: PYRITE
               PYRITIZATION;


Leg : 38    Top/Bottom Interval(mm):  170/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   402.50
Core:  36   Top of Core Depth (m)  :   395.00
Sect:  5    Top of Section Depth(m):   401.17

LITHOLOGY: GABBRO-DIABASE;
           SAME LITHOLOGY AS SEC 4;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Groundmass : PYROXENE
               MORE PYX AT 17-120CM THAN 120-150CM;

  Replacement: PYRITE
               PYRITIZATION;

               CHLORITE
               CHLORITIZATION;


Leg : 38    Top/Bottom Interval(mm):  200/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   406.00
Core:  37   Top of Core Depth (m)  :   404.50
Sect:  1    Top of Section Depth(m):   404.70

LITHOLOGY: GABBRO-DIABASE;
           SAME LITHOLOGY AS CORE 36;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : HOLOCRYSTALLINE, COARSE-GRAINED;

  Groundmass : PLAGIOCLASE
               PLAG LATHS;

               PYROXENE
               Size(mm):       3-5


Leg : 38    Top/Bottom Interval(mm):  600/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   407.50
Core:  37   Top of Core Depth (m)  :   404.50
Sect:  2    Top of Section Depth(m):   406.60

LITHOLOGY: GABBRO-DIABASE;
           SAME LITHOLOGY AS SEC 1;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Structure  : SLICKENSIDES AT 104-108 & 125-130CM;

  Groundmass : PYROXENE
               FEWER CRYSTALS THAN PREVIOUS SECTIONS;


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 344   Sample Midpoint (m)    :   409.00
Core:  37   Top of Core Depth (m)  :   404.50
Sect:  3    Top of Section Depth(m):   407.50

LITHOLOGY: GABBRO;
           SAME LITHOLOGY AS SECS 1&2;

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