Core Data from the Deep Sea Drilling Project

Leg : 23    Top/Bottom Interval(mm):    0/   0  Describer: Coleman, R.
Hole: 224   Top of Core Depth(m)   :   783.00   Rock Type: IGNEOUS
Core:  11   Sample Midpoint(m)     :   786.10   Sect/Pc #: CC/

ROCK = BASALT
       ALTERED, DESCRIPTION FROM THE IR - PAGE
       387, MINERALOGICALLY AND TEXTURALLY
       VERY SIMILAR TO LAMPROPHYRES
       (MONCHIQUITE);
       Texture: INTERSERTAL, FINE-GRAINED*

Groundmass - TITANAUGITE
             SQUARE,PRISMATIC,TITAN-AUGITE FORMING
             ROSETTES SET IN A GROUNDMASS OF BROWN GLASS;

             OLIVINE                   (   <1%)
             PSEUDOMORPHED BY SERP AND CALCITE;

             FELDSPAR                  (    0%)
             TABULAR-SHAPED PSEUDOMORPHS NOW CALCITE AND
             CHLORITE MAY HAVE BEEN PLAG;

             GLASS
             BROWN*

Alteration - HORNBLENDE
             DARK BROWN, PROBABLY BARKEVIKITE, RIMS
             MANY OF THE TI.AUGITE PRISMS AND FORMS SMALL
             DISCRETE NEEDLES IN THE GLASSY MATRIX;

             SERPENTINITE
             Replacing: OL

             CALCITE
             Replacing: OL

             FERROUS OXIDE
             Location: GLASSY MATRIX

             CHLORITE
             Location: PSEUDOMORPHS   Replacing: GLASS

             CARBONATE
             Replacing: GLASS

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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