Geoscience Reference
In-Depth Information
Table A6.1 (
cont.
)
First
Symbol
Name
Units
equation
F
SP
Slab-pull force per unit
length
Nm
−1
(8.39)
f
Frequency
s
−1
(4.7)
f
Angle
(4.55)
f
Ellipticity
(5.17)
m
3
kg
−1
s
−2
G
Gravitational constant
(5.1)
m s
−2
g
Gravitational acceleration
(5.18)
J mol
−1
G
*
Free energy of activation
(10.7)
ms
−2
g
e
Gravitational acceleration at
the equator
(5.19)
ms
−2
g
rot
Gravitational acceleration of
a rotating sphere
(5.18)
H
Horizontal component of
the Earth's magnetic field
T
(3.15)
Nm
−1
H
Horizontal force per unit
length
(5.56)
h
Focal depth
(4.12)
h
Height
m
(5.23)
h
Geoid height anomaly
m
(5.48)
J mol
−1
H
a
Enthalpy of activation
(10.7)
I
Angle of inclination
degrees
(3.16)
i
Angle
(4.33)
j
Angle
(A3.1)
K
Bulk modulus or
incompressibility
Pa
=
Nm
−2
(4.5)
k
Thermal conductivity
W m
−1 ◦
C
−1
(7.1)
k
Reaction rate coefficient
(10.25)
L
Skin depth
m
(7.41)
L
Thickness of the lithosphere
m
(7.63)
l
Length
m
(10.16)
M
Induced magnetization
T
(3.21)
M
Earthquake magnitude
(4.13)
M
Mass of a sphere
kg
(5.15)
M
Horizontal bending moment
per unit length
N
(5.64)
A m
2
m
Dipole moment
(3.1)
m
Mass
kg
(5.1)
m
b
Body-wave magnitude
(4.17)
M
E
Mass of the Earth
kg
(5.15)
M
o
Seismic moment
N m
(4.20)
M
r
Mass of the Earth within a
sphere of radius
r
kg
(8.5)