Core Data from the Deep Sea Drilling Project

Leg : 13    Top/Bottom Interval(mm):    0/   0  Describer: Hsu, K.
Hole: 133   Top of Core Depth(m)   :    63.00   Rock Type: METAMORPHIC
Core:   3   Sample Midpoint(m)     :    63.00   Sect/Pc #:  1/

ROCK = METAGRAYWACKE
       GRAY,SOURCE IS IR*

Groundmass - QUARTZ
             SHOWS SOME EVIDENCE OF BEING FLATTENED,MOST GRAINS
             NOT PARTICULARLY ELONGATED,A SET OF SCHISTOSITY IS
             DISTINGUISHED BY THE PREFERRED ORIENTATION OF FLAT
             QUARTZ GRAINS AND BY THE BANDS OF SERICITIC MATRIX
             AROUND SUCH GRAINS,A MICROSHEAR ZONE INCLINED TO
             THIS SCHISTOSITY IS MARKED BY AGGREGATES OF FINELY
             PULVERIZED QUARTZ;

             FELDSPAR

             MAGNETITE

             MUSCOVITE
             Morphology: FLAKES
             COMMON;
             MAX.GRAIN SIZE IS APPROX .8MM,SORTING IS VERY
             POOR,REXTLLIZED CHERT GRAINS HAVE BEEN STREAKED
             OUT AS LENTICLES*

Alteration - SERICITE
             Location: MATRIX

             CHLORITE
             Location: MATRIX




Leg : 13    Top/Bottom Interval(mm):    0/   0  Describer: Hsu, K.
Hole: 133   Top of Core Depth(m)   :    63.00   Rock Type: METAMORPHIC
Core:   3   Sample Midpoint(m)     :    64.60   Sect/Pc #: CC/PCE 3

ROCK = METAGRAYWACKE
       REDDISH BROWN,SOURCE IS IR;

Groundmass - QUARTZ
             Size(mm):     .1-.15  Morphology: LENTICULARLY-SHAPED

             FELDSPAR

             MUSCOVITE
             Size(mm):      TO .5  Morphology: FLAKES

             FERRIC MINS (PHENOS)
             BLACK IRON MINERALS HAVE BEEN LARGELY ALTERED TO
             HEMATITE AND GOETHITE,THUS GIVING THE ROCK A
             REDDISH BROWN COLOR,TWO SETS OF SCHISTOSITY WERE
             RECOGNIZED*

Alteration - SERICITE
             Location: MATRIX
             FINER THAN QUARTZ;

             CHLORITE
             Location: MATRIX

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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