RGB channels

Red, green, and blue pixel data were extracted from Section Half Imaging Logger (SHIL) linescan images, typically binned at 0.5 cm resolution using the central 2 cm of the image.

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.
	Offset (cm): position of the observation made, measured relative to the top of a section.
	Depth CSF-A (m): location of the observation expressed relative to the top of the hole.
	Depth CSF-B (m): location of the observation expressed relative to the top of the hole.
	Red channel: average of digitized red (R) channel over a user-defined rectangle along the center of the core section; values are in 8-bit color.
	Green channel: average of digitized green (G) channel over a user-defined rectangle along the center of the core section; values are in 8-bit color.
	Blue channel: average of digitized blue (B) channel over a user-defined rectangle along the center of the core section; values are in 8-bit color.
	Configuration filename: RGB configuration file.
	Timestamp (UTC): point in time at which an observation or set of observations were made.
	Instrument: application used to acquire the section images (SHIL).
	Text ID: automatically generated unique database identifier for a sample, visible on printed labels.
	Comments: observer's notes about the sample.