Core Data from the Deep Sea Drilling Project

Leg : 13    Top/Bottom Interval(mm):    0/   0  Describer: Hsu, K.
Hole: 134D  Top of Core Depth(m)   :   211.00   Rock Type: METAMORPHIC
Core:   3   Sample Midpoint(m)     :   215.60   Sect/Pc #: CC/

ROCK = METAGRAYWACKE
       GRAY,SOURCE IS IR*

Groundmass - QUARTZ
             Morphology: ANGULAR-SUBANGULAR
             UNDULATORY EXTINCTION IS COMMON,HOWEVER,ONLY A FEW
             QUARTZ GRAINS SHOW SIGNS OF BEING FLATTENED DURING
             THE SYNTECTONIC XTLLIZATION,REXTLLIZED CHERT
             GRAINS ARE PRESENT;

             FELDSPAR
             POTASH FELDSPAR,TWINNED AND SOMEWHAT SERICITIZED;

             MAGNETITE
             COMMON;

             MUSCOVITE
             A FEW FLAKES ARE PRESENT,MAX,GRAIN SIZE FOR THESE
             MINERALS IS APPROX 1MM,SORTING IS POOR,THE
             SCHISTOSITY IS MARKED BY CRUSHED LAMINAE OF VERY
             FINE GRAINED AGGREGATES OF QUARTZ SERICITE,MAGN
             AND CALCITE,THE LAMINAE RANGE FROM SEVERAL MICRONS
             TO A FRACTION OF A MILLIMETER THICK,THIS
             SCHISTOSITY IS INCLINED TO A PLANAR STRUCTURE
             DEFINED BY THE LONG AXIS OF QUARTZ(IN THIN
             SECTION),AND MAY REPRESENT THE SECONDARY
             SCHISTOSITY INCLINED TO THE ORIGINAL BEDDING
             PLANE*

Alteration - SERICITE
             Replacing: QUARTZ,FELDSPAR

             CALCITE

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.

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