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NOAA/NGDC
WDC MGG Seafloor Series Vol I

Core Data from the Deep Sea Drilling Project


Leg : 41    Top/Bottom Interval(mm):  800/1400  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   950.90
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  1    Top of Section Depth(m):   950.30

LITHOLOGY: SEDIMENT (SHALE & LIMESTONE);


Leg : 41    Top/Bottom Interval(mm): 1400/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   951.00
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  1    Top of Section Depth(m):   950.90

LITHOLOGY: OLIVINE DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED, BASIC;

  Structure  : IGNEOUS INTRUSION (SILL?);

  Comments   : COLOR IS MEDIUM DARK GRAY (N4), SILL CONTINUED IN
               SEC 2;

  Replacement: PYRITE
               140CM;


Leg : 41    Top/Bottom Interval(mm):    0/ 100  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   951.10
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  2    Top of Section Depth(m):   951.00

LITHOLOGY: OLIVINE DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED, BASIC;

  Structure  : PART OF AN IGNEOUS INTRUSION (THIN SILL?);

  Comments   : COLOR IS MEDIUM DARK GRAY (N4);


Leg : 41    Top/Bottom Interval(mm):  100/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   952.50
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  2    Top of Section Depth(m):   951.10

LITHOLOGY: SEDIMENT (SHALE);


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   955.50
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  4    Top of Section Depth(m):   954.00

LITHOLOGY: SEDIMENT (SHALE);


Leg : 41    Top/Bottom Interval(mm):  750/ 870  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   954.87
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  4    Top of Section Depth(m):   954.75

LITHOLOGY: OLIVINE DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : BASIC;

  Structure  : THIN IGNEOUS SILL, CALCITE VEINS;

  Comments   : COLOR IS MEDIUM LIGHT GRAY (N6);

  Replacement: CALCITE


Leg : 41    Top/Bottom Interval(mm):    0/1050  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   956.55
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  5    Top of Section Depth(m):   955.50

LITHOLOGY: SEDIMENT (SHALE);

  Comments   : BAKED CONTACT TO BASALT AT 85-105CM;


Leg : 41    Top/Bottom Interval(mm): 1050/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   957.00
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  5    Top of Section Depth(m):   956.55

LITHOLOGY: GABBRO;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : BASIC, GRAIN SIZE INCREASES DOWN SECTION, FINE
               CRYSTALLINE AT 150CM;

  Structure  : IGNEOUS SILL;

  Comments   : COLOR IS MEDIUM GRAY (N5), INITIAL REPORT CALLS THIS
               OLIVINE DIABASE;

  Groundmass : COMBINATION
               INCLUDES PLAG & PYX & OL & BIOTITE & CHLORITE &
               QUARTZ & HORNBLENDE & MAGN & LABRADOR & AUGITE IN
               DECREASING ORDER OF RELATIVE AMOUNTS;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   958.50
Core:  60   Top of Core Depth (m)  :   949.50
Sect:  6    Top of Section Depth(m):   957.00

LITHOLOGY: OLIVINE GABBRO;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : COARSE CRYSTALLINE;

  Comments   : OLIVINE-BEARING GABBRO, INITIAL REPORT CALLS THIS OL
               DIABASE;

  Groundmass : OLIVINE


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   962.50
Core:  61   Top of Core Depth (m)  :   961.00
Sect:  1    Top of Section Depth(m):   961.00

LITHOLOGY: DIABASE;
           SAME LITHOLOGY THROUGHOUT CORE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : COARSE-GRAINED;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   964.00
Core:  61   Top of Core Depth (m)  :   961.00
Sect:  2    Top of Section Depth(m):   962.50

LITHOLOGY: DIABASE;
           SAME AS SEC 1;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   965.50
Core:  61   Top of Core Depth (m)  :   961.00
Sect:  3    Top of Section Depth(m):   964.00

LITHOLOGY: DIABASE;
           SAME AS SEC 1;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   967.00
Core:  61   Top of Core Depth (m)  :   961.00
Sect:  4    Top of Section Depth(m):   965.50

LITHOLOGY: DIABASE;
           SAME AS SEC 1;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   968.50
Core:  61   Top of Core Depth (m)  :   961.00
Sect:  5    Top of Section Depth(m):   967.00

LITHOLOGY: DIABASE;
           SAME AS SEC 1;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   970.00
Core:  62   Top of Core Depth (m)  :   968.50
Sect:  1    Top of Section Depth(m):   968.50

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : COARSE-GRAINED;


Leg : 41    Top/Bottom Interval(mm):    0/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   971.50
Core:  62   Top of Core Depth (m)  :   968.50
Sect:  2    Top of Section Depth(m):   970.00

LITHOLOGY: DIABASE;
           SAME AS SEC 1;


Leg : 41    Top/Bottom Interval(mm):    0/  70  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   971.57
Core:  62   Top of Core Depth (m)  :   968.50
Sect:  3    Top of Section Depth(m):   971.50

LITHOLOGY: DIABASE;

  Piece No.  : PCE NO PIECE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED, BASIC;

  Structure  : IGNEOUS INTRUSION;

  Comments   : COLOR IS MEDIUM GRAY (N5);


Leg : 41    Top/Bottom Interval(mm):   70/1500  Analyst: Dean, W.
Hole: 368   Sample Midpoint (m)    :   973.00
Core:  62   Top of Core Depth (m)  :   968.50
Sect:  3    Top of Section Depth(m):   971.57

LITHOLOGY: SEDIMENT (BAKED SHALE);

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These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced 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, and collocated World Data Center for Marine Geology and Geophysics, Boulder. Data were compiled in cooperation with the U.S. Science Support Program, the Joint Oceanographic Institutions, Inc., and the U.S. National Science Foundation. Please see the NGDC privacy, disclaimer, and copyright notices.