Page 361 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

343

Text
in
Used Nm?/kg?)
Abbreviations 107!! (3.1416)

X of circle field field gravity z
plate plate (6.67 magnetic field magnetic field in gravity x to to

elastic elastic Constant diameter magnetic horizontal magnetic of change in respect respect x to

above below to horizontal of of of field field field of change of T, with with of T, respect

material asthenosphere mantle susceptibility Gravitational of circumference field of component component magnetic magnetic magnetization magnetization gravity component component to Ag,, with operator
air of material of crust of water (degrees) ratio magnetic component component ambient magnetization derivative derivative of
of of of of in Symbols proportional in convolution
density density density density density density density density period latitude Poisson’s magnetic Universal ratio total east horizontal north vertical Earth's induced remanent total induced remanent change horizontal vertical change first partial integral

Constants Vectors
£
2
—
100 16D 16D
z
=
Ps Pz Pa éc¢ddpwoe x G v Sf the E ry Fy Fy bea 5 = é 1 > <1 <1 <1 Mathematical as A dT/dX éT/az dx Ag, J *

downdip updip layer n B n determination

Abbreviations shooting shooting i" the Jayer at receiver along Jayer wave ; magnitude (degrees) gravity gravity

and when when within time along refraction shot A, at wave refraction wave refracted n earthquake distance gravity in change in change
Conversions, intercept intercept travel for time: direct wave reflected critical time of compressional critically wave of shear layer of i" layer of velocity wave velocity plate for angle epicentral anomaly anomaly of change in of horizontal of vertical gradient

Units, T-axis refraction T-axis two-way intercept time travel correction of time of time time for moveout time of time time displacement velocity velocity velocily velocity velocity velocity square velocity wave velocity of elastic distance distance distance distance of interface factor declination gravity gravity angle of incidence of refraction constant modulus

— refraction vertical, T-axis travel refraction terrain travel travel travel normal arrival travel arrival fault initial volume velocity apparent average seismic interval seismic compressional mean shear deflection width horizontal critical crossover vertical angle correction magnetic earthquake Bouguer air magnitude magnitude magnitude geothermal critical wavelength Lame’s
AppendixB to-a root true dip free dT /az angle angle angle shear

342 hie q i T Ag, ceoonK «K 2