Core Data from the Deep Sea Drilling Project

Leg : 24    Top/Bottom Interval(mm):  830/1500  Analyst: Thiede, J.
Hole: 233A  Sample Midpoint (m)    :   236.00
Core:   8   Top of Core Depth (m)  :   234.50
Sect:  1    Top of Section Depth(m):   235.33

LITHOLOGY: DIABASE;

  Texture    : HOMOGENEOUS AND RELATIVELY COARSE GRAINED;

  Structure  : DRUSES WITH COVER OF LIGHT WHITE CRYSTALS AND THIN
               VEINS OF SAME MATERIAL;

  Comments   : DARK GRAY (N 3) HOMOGENEOUS DIABASE, THIS
               INFORMATION IS FROM THE VISUAL CORE DESCRIPTION
               (SHIPBOARD DATA), FOR MORE INFORMATION SEE CORE
               FORM AND LITHOLOGIC DESCRIPTION IN THE INITIAL
               REPORTS, A FEW PIECES OF DIABASE FOUND IN
               BOTTOM OF CORE 7 (P.198, IR);

  Vesicles   : DRUSES WITH COVER OF LIGHT WHITE CRYSTALS;


Leg : 24    Top/Bottom Interval(mm):  830/1500  Analyst:
Hole: 233A  Sample Midpoint (m)    :   236.00
Core:   8   Top of Core Depth (m)  :   234.50
Sect:  1    Top of Section Depth(m):   235.33

LITHOLOGY: DIABASE;

  Structure  : MASSIVE UNIFORM DIABASE, UPPER PORTION CONTAINS A
               THIN VEIN OF CALCITE AND CHLORITE;

  Alteration : FRESH EUHEDRAL PLAGIOCLASE CRYSTALS, ALTERATION
               CONSISTS OF FIBROUS CHLORITE AND ISOLATED
               SERPENTINE AFTER OLIVINE;

  Comments   : DARK GRAY (N 3), THIS INFORMATION IS FROM
               THE DETAILED CORE DESCRIPTIONS LOCATED IN THE
               INITIAL REPORTS, FOR FURTHER INFORMATION SEE THE
               PRELIMINARY PETROGRAPHIC DESCRIPTIONS IN THE SITE
               233A CHAPTER OF THE INITIAL REPORTS;

  Vesicles   :
               Location:            Filling: CALCITE, CHLORITE
               UPPER PORTION CONTAINS VUGS OR CAVITIES WITH
               WALLS INCRUSTED BY CALCITE-CHLORITE AGGREGATES
               AND A THIN VEIN OF CALCITE-CHLORITE;

  Groundmass : PLAGIOCLASE
               Size(mm):    1.0-1.5
               EUHEDRAL PLAG CRYSTALS (1.0 TO 1.5 MM);

               PYROXENE
               SUBHEDRAL PYROXENE;

  Replacement: CALCITE

               CHLORITE
               THIN VEIN OF CALCITE-CHLORITE;


Leg : 24    Top/Bottom Interval(mm):  370/1500  Analyst: Thiede, J.
Hole: 233A  Sample Midpoint (m)    :   237.50
Core:   8   Top of Core Depth (m)  :   234.50
Sect:  2    Top of Section Depth(m):   236.37

LITHOLOGY: DIABASE;

  Structure  : DARK GRAY MASSIVE DIABASE AS ABOVE;

  Comments   : DARK GRAY, SEE CORE FORM AND LITHOLOGIC
               DESCRIPTION IN THE INITIAL REPORTS FOR MORE
               INFORMATION;


Leg : 24    Top/Bottom Interval(mm):    0/   0  Analyst: Thiede, J.
Hole: 233A  Sample Midpoint (m)    :   237.60
Core:   8   Top of Core Depth (m)  :   234.50
Sect: CC    Top of Section Depth(m):   237.60

LITHOLOGY: DIABASE;

  Structure  : DARK GRAY MASSIVE DIABASE AS ABOVE;

  Comments   : DARK GRAY, SEE CORE FORM AND LITHOLOGIC DESCRIPTION
               IN THE INITIAL REPORTS FOR MORE INFORMATION;


Leg : 24    Top/Bottom Interval(mm):  650/1500  Analyst: Thiede, J.
Hole: 233A  Sample Midpoint (m)    :   238.50
Core:   9   Top of Core Depth (m)  :   237.00
Sect:  1    Top of Section Depth(m):   237.65

LITHOLOGY: DIABASE;

  Structure  : DARK GRAY MASSIVE DIABASE AS ABOVE;

  Comments   : DARK GRAY, SEE CORE FORM AND LITHOLOGIC DESCRIPTION
               IN THE INITIAL REPORTS FOR MORE INFORMATION,
               A PIECE OF DIABASE FROM CORE 9 SLIPPED
               THROUGH THE CC TO THE BOTTOM OF THE
               DRILL STRING WHERE IT LODGED ON TOP OF
               THE SUPPORT BEARING. THIS MAY BE THE
               DIABASE FROM WHICH THE "13-CC" THIN-
               SECTION WAS TAKEN (SEE FRONTISPIECE,IR);

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.

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