Section-half images

Digital section images were taken of the flat face of split cores on the Section Half Imaging Logger (SHIL) using a linescan camera at a resolution of 20 lines/mm (50 micron pixels). Cores were imaged as soon as possible after splitting to minimize color changes that occur through oxidation and drying. The SHIL produces TIF files as well as reduced-size JPG files. The TIF files are not kept online but users may request them from the <a href='mailto:database@iodp.tamu.edu'>IODP-JRSO Data Librarian</a>.

Data File format

    Exp: expedition number
    Site: site number
    Hole: hole number
    Core: core number
    Type: type indicates the coring tool used to recover the core (typical types are F, H, R, X).
    Sect: section number
    A/W: archive (A) or working (W) section half.
    Top depth CSF-A (m): location of the upper edge of the section expressed relative to the top of the hole.
    Bottom depth CSF-A (m): location of the lower edge of the section expressed relative to the top of the hole.
    Top depth CSF-B (m): location of the upper edge of the section expressed relative to the top of the hole.
    Bottom depth CSF-B (m): location of the lower edge of the section expressed relative to the top of the hole.
    Display status (T/F): "T" (true) indicates that this image has been selected as the core section image to display in core descriptions and core composites. "F" (false) indicates that this image will not be displayed. (All images prior to Expedition 349 are designated as display images.)
    Uncropped image filename: filename of uncropped JPG image.
    Cropped image filename: filename of cropped JPG image.
    Configuration filename: section half image logger configuration file.
    Timestamp (UTC): point in time at which an observation or set of observations were made.
    Instrument: linescan camera (CV-L107C-99999).
    Text ID: automatically generated unique database identifier for a sample, visible on printed labels.
    Comments: observer's notes about the sample.