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Core data from the Ocean Drilling Program legs 101-129
ODP hard-rock thin section description - verbose form
leg : 106 section: 01 unit/subunit : 0001
hole: 649C top int: 002 cm observer code: DIV
core: 001D pieces: 001
rock name: Aphyric basalt
texture: Variolitic
where sampled: Unit 1
grain size: Cryptocrystalline-microcrystalline
***** PHENOCRYSTS *****
***** GROUNDMASS *****
Morphology continued: euhedral. COMMENTS: Some hopper crystals.
Olivine present % 5 original % 5 size =0.12
****** VESICLES *****
Type: Vesicles %: 1
filling : None
shape : Round
****** SECONDARY MINERALIZATION ******
mineral name: percent:
replacement:
comments :
****** OVERALL COMMENTS ******
Finer grained than 106-649C-1R (Piece 3, 9-11 cm).
ODP hard-rock thin section description - verbose form
leg : 106 section: 01 unit/subunit : 0001
hole: 649C top int: 009 cm observer code: DIV
core: 001D pieces: 003
rock name: Aphyric basalt
texture: Variolitic
where sampled: Unit 1
grain size: Microcrystalline
***** PHENOCRYSTS *****
***** GROUNDMASS *****
Also lantern shapes, chains. Some larger crystals are euhedral-subhedral.
Olivine present % 1 original % 1 size 0.03-0.12
****** VESICLES *****
Type: Vesicles %: 1
filling : None
shape : Round
****** SECONDARY MINERALIZATION ******
mineral name: Clays percent: Tr
replacement: Mesostasis
comments : Reddish brown bands in the groundmass and
in small fractures.
****** OVERALL COMMENTS ******
Completely or partially filled segregation vesicles, 0.1-0.5 mm round, < 1% of
the section. Most are completely filled.
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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