P-wave velocity logger (PWAVE-L)

P-wave velocity data were measured on whole-round sections on the Whole-Round Multisensor Logger (WRMSL) using pairs of piezoelectric transducers mounted on a caliper system. Measurements may be affected by degassing of pore fluid and microfracturing during core recovery. Report includes P-wave velocity in x-y plane and distance and traveltime between transducers.

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
	Offset (cm): position of the observation made, measured relative to the top of the section.
	Depth CSF-A (m): location of the observation expressed relative to the top of a hole.
	Depth CSF-B (m): location of the observation expressed relative to the top of a hole.
	P-wave velocity xy (m/s): velocity of pressure wave through sample in the x-y plane.
	Caliper separation (mm): displacement between the faces of the transducers in contact with the sample.
	Sonic traveltime (µs): traveltime of the sonic wave from transducer to transducer through the sample.
	Timestamp (UTC): data and time at which the observation or set of observations was made.
	Transducer signal filename: file containing the raw P-wave signal.
	Configuration filename: P-wave logger instrument configuration file.
	Instrument: abbreviation or mnemonic for the P-wave sensing device used to make this observation (PWL).
	Instrument group: abbreviation or mnemonic for the data collection device (logger) used to acquire this observation (WRMSL).
	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.