Core Data from the Deep Sea Drilling Project

Leg :  6    Top/Bottom Interval(mm):  900/1500  Analyst:
Hole:  53   Sample Midpoint (m)    :   196.90
Core:   7   Top of Core Depth (m)  :   195.40
Sect:  1    Top of Section Depth(m):   196.30

LITHOLOGY: BASALTIC GLASS;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : GLASSY;

  Structure  : DENSE;

  Alteration : BADLY ALTERED BASALTIC GLASS;

  Comments   : HARD, GRAYISH GREEN (10GY 5/2), COULD BE TUFF OR
               FLOW ROCK;

  Vesicles   : Size(mm):      1-2   Percent:
               Location:            Filling:
               Shape   : CIRCULAR
               DARKER GREEN  THAN ROCK;

  Groundmass : FELDSPAR


Leg :  6    Top/Bottom Interval(mm):    0/   0  Analyst:
Hole:  53   Sample Midpoint (m)    :   197.00
Core:   7   Top of Core Depth (m)  :   195.40
Sect: CC    Top of Section Depth(m):   197.00

LITHOLOGY: BASALT;
           ANDESITE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED;

  Structure  : DENSE, CONTAINING VEINS OF WHITE CALCITE;

  Alteration : HIGHLY ALTERED;

  Comments   : DARK BROWN, IN CONTACT WITH CHALK AT TOP;

  Vesicles   : AMYGDALOIDAL TO VESICULAR (POSSIBLY SOLUTION
               VUGS) FILLED WITH SPARRY CALCITE AND ZEOLITE;

  Groundmass : PLAGIOCLASE
               ABUNDANT ROSETTES OF BROWN, PRISMATIC SECONDARY
               PLAG;

  Replacement: CALCITE
               FOUND IN VEINS AND IN VESICLES;

               ZEOLITE
               FOUND IN VESICLES;


Leg :  6    Top/Bottom Interval(mm):    0/   0  Analyst:
Hole:  53   Sample Midpoint (m)    :   196.90
Core:   8   Top of Core Depth (m)  :   196.90
Sect:  1    Top of Section Depth(m):   196.90

LITHOLOGY: BASALT;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FINE-GRAINED AND GLASSY;

  Structure  : DENSE;

  Alteration : BADLY ALTERED;

  Comments   : BAKED MARMATIZED CHALK CONTACT;


Leg :  6    Top/Bottom Interval(mm):    0/   0  Analyst:
Hole:  53   Sample Midpoint (m)    :   198.50
Core:   8   Top of Core Depth (m)  :   196.90
Sect: CC    Top of Section Depth(m):   198.50

LITHOLOGY: BASALT;
           OR ANDESITE;

  Piece No.  : PCE NO PCE NUMBERS ASSIGNED;

  Texture    : FELTED MASS OF RADIATING BROWN PLAG LATHS IN
               FINE-GRAINED MATRIX, AND ANGULAR FRAGMENTS OF
               ALTERED VOLCANIC ROCK IN TUFFACEOUS MATRIX;

  Alteration : HIGHLY ALTERED, ALSO SEE CHLORITIC HIGHLY ALTERED
               BASALTIC OR ANDESITE TUFF OR FLOW ROCK
               (GREENSTONE);

  Comments   : DARK GRAY VOLCANIC ROCK, LIKE THAT OF CORE 7;

  Vesicles   : AMYGDALOIDAL;

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