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Core Data from the Deep Sea Drilling Project


Leg : 38    Top/Bottom Interval(mm):  500/ 750  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   361.75
Core:  14   Top of Core Depth (m)  :   359.50
Sect:  2    Top of Section Depth(m):   361.50

LITHOLOGY: SEDIMENT (CLAYSTONE);
           DRILL BRECCIA;


Leg : 38    Top/Bottom Interval(mm):  750/1500  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   362.50
Core:  14   Top of Core Depth (m)  :   359.50
Sect:  2    Top of Section Depth(m):   361.75

LITHOLOGY: SEDIMENT (CLAYSTONE);
           APHYRIC BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : APHYRIC, BRECCIA, ANGULAR & ROUND FRAGMENTS OF
               CLAYSTONE AND BASALT UP TO 10CM IN SIZE, FRAGMENTS
               ARE COARSE AND CEMENT IS SANDY NEAR BOTTOM;

  Structure  : THIN CALCITE-CHLORITE VEINS CUT THE BASALT
               FRAGMENTS, ABUNDANT WHITE CALCITE VEINS ESPECIALLY
               AT 78-95CM;

  Alteration : THIN LIGHT GRAY RIMS;

  Comments   : FRAGMENTS ARE MEDIUM DARK GRAY (N4) TO DARK GRAY
               (N3), CEMENT IS OLIVE GRAY (5Y 4/1) TO OLIVE BLACK
               (5Y 2/1) AND CONTAINS CALCITE WITH CHLORITE & CLAY
               MINERALS;

  Replacement: CALCITE

               CHLORITE

               CLAY MIN


Leg : 38    Top/Bottom Interval(mm):    0/1500  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   364.00
Core:  14   Top of Core Depth (m)  :   359.50
Sect:  3    Top of Section Depth(m):   362.50

LITHOLOGY: BASALT BRECCIA;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : APHYRIC, BRECCIA, APHANITIC, FINE-GRAINED, ANGULAR &
               ROUND FRAGMENTS;

  Structure  : ABUNDANT SHORT THICK (3CM) CALCITE VEINS AT 5-25 &
               45-70CM, CALCITE SONETIMES FILLS CAVITIES;

  Alteration : THIN (0.5-1MM) RIMS OF CHLORITE & CALCITE;

  Comments   : FRAGMENTS ARE GRAYISH BLACK (N2) TO BLACK (N9),
               CEMENT IS OLIVE BLACK (5Y 2/1) TO GREENISH BLACK
               (5GY 2/1), LESS CEMENT THAN SEC 2;

  Replacement: CALCITE
               CRYSTALS ON WALLS;

               CHLORITE


Leg : 38    Top/Bottom Interval(mm):    0/ 300  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   364.30
Core:  14   Top of Core Depth (m)  :   359.50
Sect: CC    Top of Section Depth(m):   364.10

LITHOLOGY: BASALT BRECCIA;
           SAME LITHOLOGY AS SEC 3;


Leg : 38    Top/Bottom Interval(mm):  710/ 920  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   379.42
Core:  16   Top of Core Depth (m)  :   378.50
Sect:  1    Top of Section Depth(m):   379.21

LITHOLOGY: BASALT BRECCIA;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : ANGULAR FRAGMENTS, BRECCIA;

  Comments   : MEDIUM DARK GRAY, CEMENTED BY BLACK CLAYISH
               MATERIAL;

  Replacement: CLAY


Leg : 38    Top/Bottom Interval(mm):  920/1500  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   380.00
Core:  16   Top of Core Depth (m)  :   378.50
Sect:  1    Top of Section Depth(m):   379.42

LITHOLOGY: BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED;

  Structure  : CALCITE VEINS 1-2MM THICK WITH YELLOWISH-GREEN
               CHLORITE, WHITE CALCITE-FILLED CAVITIES;

  Comments   : GRAYISH BLACK (N2) TO BLACK (N1);

  Vesicles   : Size(mm):    0.5-3   Percent:
               Location:            Filling: CALCITE
               WHITE CALCITE AMYGDULES AND CAVITIES;

  Phenocrysts: PLAGIOCLASE
               Size(mm):        2-3

               PYROXENE
               Size(mm):        2-3
               PHENOS ARE RARE;

  Replacement: CALCITE

               CHLORITE


Leg : 38    Top/Bottom Interval(mm):   50/1500  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   381.50
Core:  16   Top of Core Depth (m)  :   378.50
Sect:  2    Top of Section Depth(m):   380.05

LITHOLOGY: BASALT;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED;

  Structure  : SLICKENSIDES, CALCITE VEINS WITH CHLORITE;

  Comments   : BLACK (N1) TO GRAYISH BLACK (N2);

  Vesicles   :
               Location:            Filling: CALCITE
               Shape   : ROUND
               RARE CALCITE AMYGDULES WITH THIN CHLORITE RIMS;

  Phenocrysts: PLAGIOCLASE
               Size(mm):       TO 3

               PYROXENE
               Size(mm):       TO 3
               PHENOS ARE RARE;

  Replacement: CALCITE

               CHLORITE


Leg : 38    Top/Bottom Interval(mm):   60/1500  Analyst: Kharin, G.
Hole: 350   Sample Midpoint (m)    :   383.00
Core:  16   Top of Core Depth (m)  :   378.50
Sect:  3    Top of Section Depth(m):   381.56

LITHOLOGY: BASALT;
           SAME LITHOLOGY AS SEC 2;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED;

  Structure  : SLICKENSIDES WITH CALCITE & YELLOWISH GREEN CHLORITE
               ON WALLS;

  Comments   : COLOR IS BLACK (N1);

  Vesicles   :
               Location:            Filling: CALCITE
               Shape   : ROUND
               RARE CALCITE AMYGDULES;

  Phenocrysts: PLAGIOCLASE

               PYROXENE

               OLIVINE
               PHENOS ARE RARE;

  Replacement: CALCITE

               CHLORITE


    

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