Core Data from the Deep Sea Drilling Project

Leg : 54    Top/Bottom Interval(mm):  150/ 170  Describer: Srivastava, R.K.
Hole: 421   Top of Core Depth(m)   :    85.50   Rock Type: IGNEOUS
Core:   2   Sample Midpoint(m)     :    85.66   Sect/Pc #:  1/PCE 1

ROCK = APHYRIC BASALT
       FAIRLY FRESH;
       Texture: GLASSY
       IN PARTS INTERSERTAL*

Groundmass - PLAGIOCLASE               (    2%)
             Morphology: LATHS
             APPROX SIZE IS 2-4MM X 0.01MM,
             1 LARGE MICROPHENOCRYST CONTAINS IRREGULAR
             GLASSY INCLUSIONS OF APPROX 1MM X 0.2 MM,
             APPROX PLAG COMP AN60;

             CLINOPYROXENE             (    2%)
             Morphology: IRREGULAR
             APPROX SIZE 1-2MM X 0.01MM;

             MAGNETITE                 (    5%)
             DISSEMINATED;

             GLASS                     (   85%)

Vesicles   -
             Size(mm):     5-20
             Percent:     2
             Filling: SMEC,CHLORITE
             Shape: ROUND




Leg : 54    Top/Bottom Interval(mm):  280/ 350  Describer: Srivastava, R.K.
Hole: 421   Top of Core Depth(m)   :    95.00   Rock Type: IGNEOUS
Core:   3   Sample Midpoint(m)     :    95.32   Sect/Pc #:  1/PCE 3

ROCK = APHYRIC BASALT
       FRESH;
       Texture: INTERSERTAL
       ROCK APPEARS TO BE TYPICAL FINE GRAINED BASALT*

Groundmass - PLAGIOCLASE               ( 43.8%)
             Morphology: LATHS
             DIMENSIONS 1-2 X .01;

             CLINOPYROXENE             ( 34.5%)
             Morphology: IRREGULAR
             DIMENSIONS 2-5 X 0.01;

             MAGNETITE                 (    5%)

             GLASS                     ( 15.2%)
             PERCENTAGES OBTAINED BY POINT COUNT*

Alteration - COMBINATION               (  1.5%)
             INCLUDES SMEC+CHLORITE*

Vesicles   -
             Percent:     2
             Filling: SMEC,CHLORITE

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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