Core Data from the Deep Sea Drilling Project

Leg : 29    Top/Bottom Interval(mm):    0/1300  Analyst: Hampton, M.A.
Hole: 281   Sample Midpoint (m)    :   158.80
Core:  17   Top of Core Depth (m)  :   150.00
Sect:  6    Top of Section Depth(m):   157.50

LITHOLOGY: DRILLING BRECCIA;

  Texture    : DRILLING BRECCIA, BRECCIA IS COMPOSED OF CLAY-SIZE
               (POSSIBLY COMMINUTED MINERALS) IN A MATRIX WITH
               A COARSE FRACTION (APPROXIMATELY 50 PERCENT) WHICH
               VARIES FROM FINE TO VERY COARSE SAND - THIS COARSE
               FRACTION CONTAINS MICA SCHIST (65 PERCENT) +
               GLAUCONITE (15 PERCENT) + VEIN QTZ OR QUARTZITE
               (15 PERCENT) + GLAUCONITE SANDSTONE (5 PERCENT) -
               MOST FRAGMENTS ARE ANGULAR BUT SOME QTZ GRAINS ARE
               ROUNDED, INTERVALS (18-47 CM) AND (120-129 CM) ARE
               THE SAME AS THE REST OF THE SECTION BUT HAVE NO
               COARSE FRACTION;

  Structure  : DRILLING BRECCIA, MOST FRAGMENTS ARE ANGULAR BUT
               SOME QTZ GRAINS ARE ROUNDED - SEE CODE T (TEXTURE);

  Comments   : MAINLY MEDIUM GREENISH GREY (5 GY 5/1), SEE CORE
               FORM AND LITHOLOGIC DESCRIPTION FROM THE INITIAL
               REPORTS FOR ADDITIONAL INFORMATION;

  Groundmass : GLAUCONITE
               GLAUCONITE AND GLAUCONITE SANDSTONE;

               QUARTZ
               VEIN QTZ OR QUARTZITE;

               MICA
               MICA SCHIST;
               SEE CODE T (TEXTURE)  FOR OTHER DETAILS, ALSO SEE
               THE CORE FORM AND LITHOLOGIC DESCRIPTION IN THE
               INITIAL REPORTS FOR ADDITIONAL INFORMATION;


Leg : 29    Top/Bottom Interval(mm):    0/   0  Analyst: Hampton, M.A.
Hole: 281   Sample Midpoint (m)    :   159.10
Core:  17   Top of Core Depth (m)  :   150.00
Sect: CC    Top of Section Depth(m):   159.10

LITHOLOGY: QUARTZ MICA SCHIST;

  Texture    : QUARTZ MICA SCHIST FRAGMENTS;

  Comments   : GREENISH BLACK, SEE CORE FORM AND LITHOLOGIC
               DESCRIPTION IN THE INITIAL REPORTS FOR ADDITIONAL
               INFORMATION;

  Groundmass : QUARTZ

               MICA
               QUARTZ MICA SCHIST FRAGMENTS;

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.

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