Table T7.

Table T7. Specifications of the downhole tools deployed during Leg 177.

Tool string	Tool	Measurement	Sample interval (cm)	Depth of investigation (cm)	Approximate vertical resolution (cm)

Triple combination	HNGS	Natural gamma ray	15	Variable	45
	APS	Porosity	5 or 15	15	15-30
	HLDS	Bulk density, PEF	2.5 or 15	15-60	15-45
	DIT	Resistivity	2.5 or 15	38/76/150	59/150/200
GHMT	NGT	Natural gamma ray	15	Variable	45
	NMRT	Total magnetic field	5	Variable	15-30
	SUMT	Magnetic susceptibility	5	Variable	15-30

Notes: Tool abbreviations: HNGS = hostile environment natural gamma-ray sonde, APS = accelerator porosity sonde, HLDS = hostile environment litho-density sonde, DIT = dual induction tool, GHMT = geologic high-resolution magnetic tool, NGT = natural gamma-ray spectrometry tool, NMRT = nuclear magnetic resonance tool, SUMT = susceptibility magnetic tool. PEF = photoelectric factor.