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The X-Ray Laboratory onboard the R/V JOIDES Resolution (Foc's'le deck) performs diffraction analyses of minerals and rock powders. The laboratory uses a Bruker AXS D4 Endeavor XRD (a.k.a. Bruker or D4) and a PANalytical Aeris XRD (a.k.a. Aeris) diffractometers (Figure 1).
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Sample holders for powdered XRD samples are steel or steel with a silicon or quartz spacer. The selection of a sample holder depends on the volume of sample to be analyzed.
Amount of Powdered Sample | Sample Holder |
Large: 2.0 mm depth | Steel |
Medium: 1.8 mm depth | Steel |
Small:1.0 mm depth | Steel with quartz or zero-background Si spacer |
Smallest (vein/vesicles, scrapings) | Slurry (see Sample Slurry/Smear Slide Mounting for Small Sample Amounts) |
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