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Core Data from the Deep Sea Drilling Project


Leg : 15    Top/Bottom Interval(mm):  200/1250  Analyst: Maurrasse, F.
Hole: 146   Sample Midpoint (m)    :   738.25
Core:  41   Top of Core Depth (m)  :   737.00
Sect:  1    Top of Section Depth(m):   737.20

LITHOLOGY: LIMESTONE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;


Leg : 15    Top/Bottom Interval(mm): 1250/1500  Analyst: Maurrasse, F.
Hole: 146   Sample Midpoint (m)    :   738.50
Core:  41   Top of Core Depth (m)  :   737.00
Sect:  1    Top of Section Depth(m):   738.25

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Structure  : SILL, CUT BY CALCITE FILLED FRACTURES;

  Alteration : FRESH

  Comments   : BLACK (N1);

  Replacement: CALCITE
               IN FRACTURES;


Leg : 15    Top/Bottom Interval(mm):    0/1150  Analyst: Maurrasse, F.
Hole: 146   Sample Midpoint (m)    :   739.65
Core:  41   Top of Core Depth (m)  :   737.00
Sect:  2    Top of Section Depth(m):   738.50

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : MEDIUM-GRAINED EXCEPT IN LOWER MOST CHILLED ZONE
               ADJACENT TO UNDERLYING SEDIMENTS;

  Structure  : SUBHORIZONTAL AND OBLIQUE FRACTURES OCCUR
               THROUGHOUT;

  Comments   : BLACK (N1);

  Replacement: CALCITE
               IN FRACTURES;


Leg : 15    Top/Bottom Interval(mm):  200/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   747.50
Core:  42   Top of Core Depth (m)  :   746.00
Sect:  1    Top of Section Depth(m):   746.20

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS, 2 TO 15CM LONG, FINER-GRAINED (.1MM) THAN
               CORE 41, CURSORY INSPECTION SHOWS NO VARIATION IN
               GRAIN SIZE;

  Structure  : SUBVERTICAL FRACTURES (SOME FILLED WITH CALCITE);

  Alteration : FRESH

  Comments   : BLACK;

  Replacement: CALCITE
               IN FRACTURES;


Leg : 15    Top/Bottom Interval(mm):    0/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   749.00
Core:  42   Top of Core Depth (m)  :   746.00
Sect:  2    Top of Section Depth(m):   747.50

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS, 5 TO 12CM LONG, MEDIUM-GRAINED,
               CURSORY INSPECTION SHOWS NO VARIATION IN GRAIN SIZE,

  Structure  : SUBVERTICAL FRACTURES (SOME FILLED WITH CALCITE);

  Alteration : FRESH

  Comments   : BLACK;

  Replacement: CALCITE
               IN FRACTURES;


Leg : 15    Top/Bottom Interval(mm):  230/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   750.50
Core:  42   Top of Core Depth (m)  :   746.00
Sect:  3    Top of Section Depth(m):   749.23

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS, 5 TO 10CM LONG, MEDIUM-GRAINED,
               CURSORY INSPECTION SHOWS NO PROMINENT VARIATION IN
               GRAIN SIZE;

  Structure  : CALCITE AND UNKNOWN IN VEINS IN UPPER 30CM, 2MM
               WIDE;

  Alteration : FRESH

  Replacement: CALCITE
               IN VEINS;

               UNIDENTIFIED
               IN VEINS;


Leg : 15    Top/Bottom Interval(mm):  700/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   756.50
Core:  43   Top of Core Depth (m)  :   755.00
Sect:  1    Top of Section Depth(m):   755.70

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS, 2 TO 16CM LONG, MEDIUM-GRAINED,
               CURSORY INSPECTION SHOWS NO PROMINENT VARIATION IN
               GRAIN SIZE;

  Alteration : FRESH

  Comments   : BLACK;


Leg : 15    Top/Bottom Interval(mm):    0/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   758.00
Core:  43   Top of Core Depth (m)  :   755.00
Sect:  2    Top of Section Depth(m):   756.50

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS, 5 TO 12CM LONG, MEDIUM-GRAINED,
               CURSORY INSPECTION SHOWS NO PROMINENT VARIATION IN
               GRAIN SIZE;

  Structure  : CALCITE AND UNIDENT MINERAL IN VEINS IN UPPER 30CM
               AND AGAIN FROM 64-90CM, GEOMETRY OF THESE VEINS
               SUGGESTS THAT LITTLE INTERVENING ROCK IS MISSING;

  Comments   : BLACK;

  Replacement: CALCITE
               FOUND IN VEINS;

               UNIDENTIFIED
               FOUND IN VEINS;


Leg : 15    Top/Bottom Interval(mm):    0/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   759.50
Core:  43   Top of Core Depth (m)  :   755.00
Sect:  3    Top of Section Depth(m):   758.00

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS 5 TO 12CM LONG, CURSORY INSPECTION REVEALS
               NO PROMINENT VARIATION IN GRAIN SIZE;

  Vesicles   : Size(mm):        1   Percent:
               Location:            Filling: CALCITE

               Size(mm):        1   Percent:
               Location:            Filling: UNIDENT
               UNIDENTIFIED  MINERAL IN VUGS AT 19CM DOWN;


Leg : 15    Top/Bottom Interval(mm):   80/1500  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   761.00
Core:  43   Top of Core Depth (m)  :   755.00
Sect:  4    Top of Section Depth(m):   759.58

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FRAGMENTS 8 TO 15CM LONG, CURSORY INSPECTION REVEALS
               NO PROMINENT VARIATION IN GRAIN SIZE;


Leg : 15    Top/Bottom Interval(mm):    0/   0  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   761.10
Core:  43   Top of Core Depth (m)  :   755.00
Sect: CC    Top of Section Depth(m):   761.10

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;


Leg : 15    Top/Bottom Interval(mm):    0/   0  Analyst: Donnelly, T.
Hole: 146   Sample Midpoint (m)    :   760.10
Core:  44   Top of Core Depth (m)  :   760.00
Sect: CC    Top of Section Depth(m):   760.10

LITHOLOGY: BASALT;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Comments   : TWO PCES FOUND IN FREEZER BOX OF CORE CATCHER;

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