X-ray diffraction (XRD)

X-ray diffraction (XRD) is used to identify minerals and their proportions in sediment or hard rock sample powders on a Bruker AXS D4 Endeavor X-ray diffractometer. Results are returned as diffractograms in a viewable format (either PDF or PNG).

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 offset (cm): position of the upper edge of the sample, measured relative to the top of the section.
	Bottom offset (cm): position of the lower edge of the sample, measured relative to the top of the section.
	Top depth CSF-A (m): location of the upper edge of the sample expressed relative to the top of the hole.
	Bottom depth CSF-A (m): location of the lower edge of the sample relative to the top of the hole.
	Top depth CSF-B (m): location of the upper edge of the sample expressed relative to the top of the hole.
	Bottom depth CSF-B (m): location of the lower edge of the sample expressed relative to the top of the hole.
	XRD viewable filename: X-ray diffraction (XRD) viewable image (PDF or PNG).
	XRD UXD filename: X-ray diffraction (XRD) raw data file (UXD/ASCII format).
	XRD raw data filename: X-ray diffraction (XRD) raw data file (proprietary Bruker AXS format).
	Timestamp (UTC): point in time at which an observation or set of observations was made.
	Text ID: automatically generated unique database identifier for a sample, visible on printed labels.
	Comments: observer's notes about a measurement, the sample, or the measurement process.