Units and symbols - The Solid Earth - page 646

Table A6.1 ( cont. )

First

Symbol Name Units equation

σ Stress Pa (A2.18)

τ Temperature difference

◦ C

(8.18)

φ Longitude degrees (2.6)

φ Seismic parameter

φ Phase angle (7.42)

m 2

Seismic scalar
displacement potential

(4.1)

χ Magnetic susceptibility (3.18)

m 2 Ψ Seismic vector

displacement potential

(4.2)

10 −7 degrees yr −1

ω

Angular velocity (2.3)

ω

Angular frequency (4.25)

Table A6.2 Multipliers for powers of ten

10 −9 10 3

n nano- k kilo-

10 −6 10 6 micro- M mega-

10 −3 10 9 m milli- G giga-

Table A6.3 The Greek alphabet

Alpha A Nu ν

Beta B Xi ξ

Gamma Omicron O o

Delta Pi

Epsilon ε Rho ρ

Zeta ζ Sigma

Eta η Ta u τ

Theta Upsilon ϒ

Iota ι Phi

Kappa κ Chi X

Lambda Psi ψ

Mu M Omega