Shore X-ray Fluorescence (XRF)

X-ray fluorescence (XRF) is a rapid, non-destructive technique for determining qualitative and quantitative changes in chemical composition. In the shore-based laboratory at IODP, we have two Avaatech XRF Core Scanners that are used for measuring a large number of spots along the length of a core. Spots are typically irradiated at multiple conditions to excite and measure a wide range of elements. The peak intensity changes (we do not provide concentrations) are then be used to help recognize and define major chemo-stratigraphic units without the need for destructive sampling.

Data File format

    File Name: summary report filename.
    Exp: expedition number
    Site: site number
    Hole: hole number
    Voltage (kV): accelerating voltage used in X-ray source.
    Current (mA): current used in X-ray source.
    Filter: material used to modify X-ray source spectrum.
    Live Time (s): length of time over which X-rays were counted.
    Downcore Slit (mm): spot size in the down-core direction.
    Crosscore Slit (mm): spot size in the cross-core direction.
	Scan: numerical indicator of the physical scanner which conducted the measurement.
    Raw Data: Zip file containing raw .spe files, original processed data, and model file.