Core data from the Ocean Drilling Program legs 101-129

                ODP hard-rock thin section description - verbose form
   leg :  106                section:  01       unit/subunit : 0002
   hole: 648B                top int: 020 cm    observer code:  DIV
   core: 001R                 pieces: 005

       rock name: Moderately plagioclase olivine phyric basalt
         texture: Glomeroporphyritic, intersertal to intergranular

   where sampled: Unit 2

     grain size: Fine to cryptocrystalline 

                        ***** PHENOCRYSTS *****
Olivine                   present %  <1    original % <1      size 0.4       

           morphology : Subhedral
           comments   : In glomerocrysts with plag. 

                        ***** GROUNDMASS *****

Plagioclase            present %  50    original %  50     size 0.04-0.6
                         ****** VESICLES *****
Type: Vesicles   %: <1
      filling : None
      shape   : Round

                ****** SECONDARY MINERALIZATION ******
mineral name:                            percent:  
      replacement: 
      comments   : 
                     ****** OVERALL COMMENTS ******
Similar to 106-648B-1R-1 (Piece 6, 30-33 cm). Possible segregation vesicles with 
diffuse boundaries (<1% of the section). 

                ODP hard-rock thin section description - verbose form
   leg :  106                section:  01       unit/subunit : 0002
   hole: 648B                top int: 030 cm    observer code:  DIV
   core: 001R                 pieces: 006

       rock name: Moderately plagioclase olivine phyric basalt
         texture: Glomeroporphyritic, intersertal to intergranular

   where sampled: Unit 2

     grain size: Fine to cryptocrystalline 

                        ***** PHENOCRYSTS *****
Olivine                   present %  1     original % 1       size 0.4       

           morphology : Subhedral
           comments   : In glomerocrysts with plag. 

                        ***** GROUNDMASS *****
Also swallowtail morphology. 
Plagioclase            present %  50    original %  50     size 0.06-0.16
                         ****** VESICLES *****
Type: Vesicles   %: 0

                ****** SECONDARY MINERALIZATION ******
mineral name:                            percent:  
      replacement: 
      comments   : 
                     ****** OVERALL COMMENTS ******
One plag phenocryst is composed of elongated, interfingering of plag and 
grounmass. One plag phenocryst is sector zoned.  Some plag phenocrysts have 
partially resorbed cores with cryptocrystalline melt inclusions. 

                ODP hard-rock thin section description - verbose form
   leg :  106                section:  01       unit/subunit : 0003
   hole: 648B                top int: 059 cm    observer code:  DIV
   core: 001R                 pieces: 011

       rock name: Moderately plagioclase olivine phyric basalt
         texture: Glomeroporphyritic, subvariolitic to intersertal

   where sampled: Unit 3

     grain size: Fine to cryptocrystalline 

                        ***** PHENOCRYSTS *****
Olivine                   present %  1     original % 1       size 



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These Web pages are from the Core Data from the Ocean Drilling Program Legs 101-129 CD-ROM produced in 2001 by the
U.S. Department of Commerce, National Oceanic and Atmospheric Administration,
National Environmental Satellite, Data, and Information Service,
National Geophysical Data Center, and collocated 
World Data Center for Marine Geology and Geophysics, Boulder.  
Data were compiled in cooperation with
the U.S. Science Support Program, the Joint Oceanographic Institutions, Inc., and the 
U.S. National Science Foundation.  Please see the NGDC privacy, disclaimer, and copyright notices.
Additional ocean drilling data are available from
NGDC and from the ODP/IODP.




questions to: carla.j.moore@noaa.gov