Non-destructive Elemental Analyses

Responsible Scientist

Dr. Ursula Röhl

The X-ray fluorescence (XRF) Core Scanner is a non-destructive analysis system for relatively fast and closely spaced (as small as 2mm) analyses of major and minor elements by scanning split sediment cores. XRF measurements of the entire suite of elements between potassium (K) and strontium (Sr) can be recorded. XRF data show a significantly higher signal-to-noise ratio and a more consistent hole-to-hole agreement than standard core logs.

For paleoenvironmental studies element intensities and element ratios are used, e.g. for the calcium carbonate content and the supply of terrigenous material (K, Fe, Ti). A planned extension of the measurable elements towards both lighter (e.g., Al, Si, P) and heavier (Ba) will significantly expand possible paleoceanographic and paleoclimatic application of the X-ray fluorescence scanner.

X-Ray Fluorescence Core Scanner for non-destructive measurements of chemical elements at the surface of split sediment cores