Core Data from the Deep Sea Drilling Project

Leg : 22    Top/Bottom Interval(mm):  800/ 870  Describer: Hekinian, R.
Hole: 216   Top of Core Depth(m)   :   462.50   Rock Type: IGNEOUS
Core:  37   Sample Midpoint(m)     :   464.84   Sect/Pc #:  2/

ROCK = BASALT
       PATCHY.SOURCE IS IR*

Groundmass - PLAGIOCLASE               (39.40%)

             CLINOPYROXENE             (39.20%)
             PERCENTAGES OBTAINED BY MODAL ANALYSES*

Alteration - FERROUS OXIDE             (11.60%)

             MICA                      (  1.6%)

             CLAY MINERALS             ( 8.20%)
             INCLUDES CHLORITE+SERP+SMEC+VERMICULATE-CHLORITE*




Leg : 22    Top/Bottom Interval(mm):   00/  40  Describer: Hekinian, R.
Hole: 216   Top of Core Depth(m)   :   462.50   Rock Type: IGNEOUS
Core:  37   Sample Midpoint(m)     :   467.02   Sect/Pc #:  4/

ROCK = BASALT;
       Texture: FINE-GRAINED, PILOTAXITIC*

Phenocrysts- PLAGIOCLASE               (    1%)
             MICROPHENOS*

Groundmass - PLAGIOCLASE               (   50%)

             CLINOPYROXENE             (   35%)

             MICROCRYST GROUNDMASS     (    3%)
             DARK;

             MAGNETITE                 (    7%)
             FE.OXIDE, ID UNCERTAIN FOR MAGN*

Alteration - HEMATITE                  (   <1%)

             CHLORITE                  (   <3%)




Leg : 22    Top/Bottom Interval(mm): 1450/   0  Describer: Hekinian, R.
Hole: 216   Top of Core Depth(m)   :   462.50   Rock Type: IGNEOUS
Core:  37   Sample Midpoint(m)     :   468.45   Sect/Pc #:  4/

ROCK = PLAG SPARSELY MICROPHYRIC BASALT
       SOURCE IS IR*

Phenocrysts- PLAGIOCLASE               ( 1.18%)
             MICROPHENOS*

Groundmass - PLAGIOCLASE               (30.97%)

             CLINOPYROXENE             (41.37%)

             GROUNDMASS                ( 3.55%)
             INCLUDES GLASS+DARK MESOSTASIS+CRYPTOXTLLINE
             UNIDENTIFIED AGGREGATES,MODAL ANALYSIS*

Alteration - FERROUS OXIDE             (12.29%)

             CLAY MINERALS             (10.87%)
             INCLUDES CHLORITE+SERP+SMEC+VERMICULITE-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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