Table T8.

Table T8. Specifications of the logging tools used during Leg 182, grouped into tool strings.

Tool strings Typical logging speed
(m/hr) Individual tools Properties measured Sample
interval
(cm) Approximate vertical
resolution
(cm) Approximate depth of investigation (cm)

Triple combo (total length = ~32 m)
275
HNGS
Natural gamma ray
15
45
Variable

APS
Porosity
5 and 15
30
15

HLDS
Bulk density, PEF
15
38
15

DITE-SFL
Resistivity
15
200/150/90/60
150/76/38

TAP
Temperature, acceleration, pressure
One per second

Four per second

One per second

FMS/sonic (total length = ~27 m)
275
NGT-C
Natural gamma ray
15
45
46

GPIT
Tool orientation
1 or 15

SDT-C
Sonic velocity
15
110
15-30

FMS
Resistivity image
0.25
0.5
15

GHMT (total length = ~9 m)
550
NGT-C
Natural gamma ray
15
45
25

SUMS
Susceptibility
5 and 15
35

WST
Stationary
WST
Sonic traveltime
3000-10000

Tool strings	Typical logging speed (m/hr)	Individual tools	Properties measured	Sample interval (cm)	Approximate vertical resolution (cm)	Approximate depth of investigation (cm)
Triple combo (total length = ~32 m)	275	HNGS	Natural gamma ray	15	45	Variable
		APS	Porosity	5 and 15	30	15
		HLDS	Bulk density, PEF	15	38	15
		DITE-SFL	Resistivity	15	200/150/90/60	150/76/38
		TAP	Temperature, acceleration, pressure	One per second
				Four per second
				One per second
FMS/sonic (total length = ~27 m)	275	NGT-C	Natural gamma ray	15	45	46
		GPIT	Tool orientation	1 or 15
		SDT-C	Sonic velocity	15	110	15-30
		FMS	Resistivity image	0.25	0.5	15
GHMT (total length = ~9 m)	550	NGT-C	Natural gamma ray	15	45	25
		SUMS	Susceptibility	5 and 15	35
WST	Stationary	WST	Sonic traveltime	3000-10000

Note: See Table T9 for explanations of acronyms used to describe tool strings and individual tool names.