Core Data from the Deep Sea Drilling Project

Leg : 59    Top/Bottom Interval(mm):    0/ 210  Analyst:
Hole: 451   Sample Midpoint (m)    :   926.71
Core: 102   Top of Core Depth (m)  :   926.50
Sect: CC    Top of Section Depth(m):   926.60

LITHOLOGY: CPX SPARSELY TO MOD PHYRIC BASALT;

  Piece No.  : PCE NO PCE NUMBERS;

  Texture    : CPX SPARSELY TO MOD PHYRIC BOULDER IN VOLCANICLASTIC
               SEDIMENTARY BRECCIA, HYALOPILITIC GNDMASS;

  Structure  : THIN VEINS (0.5MM) ARE FILLED WITH GREEN SMEC;

  Comments   : SECONDARY MINERAL NEAR HYDROTHERMAL ALTERATION IS
               LIGHT GREENISH GREY IN COLOR (5G4/1), BASALT HOST
               BRECCIA CONTACT IS SHARP WITH BRECCIA AT THE BOTTOM
               OF CORE CATCHER;

  Alteration : ONE SIDE OF THE BOULDER IS HYDROTHERMALLY ALTERED;

  Vesicles   : Size(mm):      2-3   Percent:   5-7
               Location:            Filling: SMEC
               Shape   : SPHERICAL
               SOME PARTIALLY EMPTY;

  Phenocrysts: CLINOPYROXENE             (  1-3%)
               Size(mm):     <0.5MM
               IRREGULAR ANHEDRAL GRAINS;

  Groundmass : GNDMASS IS HYALOPILITIC AND 50-60% XTLZED, SOME
               MAFIC MINERALS PRESENT;

               PLAGIOCLASE
               MICROLITES;

               GLASS

  Replacement: SMECTITE
               SECONDARY MINERAL GREENISH GREY FROM HYDROTHERMAL
               ALTERATION;

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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