Page 371 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

faults offsetting, Province, 24, 25 for, 264-65, maps for, 272 (table), 322 interpretation 162 (figure), anomaly, 259 (figure). 260 waves; Shear 196, 206, 190, for, 53, 54 tectonic model, 270 rift zones, 264, 265 (figure), 234 ridges, 268-69 ranges, 259, 274 margins, isostatic (figure), 234 148 146, 353

normal magnetic, 296, 297, 299 (figure) 177 Range (figure), 26 (figure), 28 (figure), 90, 92. 96 (figure) gravity anomalies gravity anomaly in, 321 (figure), 323 (figure), 324 (figure), 325 reflection 161 160, Island, 286 (figure) Bathymetry, 260, 262, 263, 268 178 175 Uplift, volcanism, 34 177 waves, See also Compressional earthquakes and, propagation of, 47 travel-time curves

flexural 169-71 structures, Basin and 266 flow heat seismic 159, in, Bathhurst Batman (figure). Beamish, D., Benton Bimodal Ridge, Blue Body waves 207 260 complete, 232 in composite at continental equations on mid-ocean at mountain at at for regions simple, 230-31 Bow (figure), Braile, L. W., 92 Isles, British

Mountains, 29, 92, 178, 322 (figure) velocity, 68, 75 “earthquakes and, 206, 208 inter- horizontal ‘from single dipping interface, 177 (figure) 19,215. See 16, 15, Lithosphere/asthenos- boundary continental rift zones and, 24, 325 (figure) 17 187,201, 186, seismic refraction and, 37 164 (figure), Control (AGC), 198 planes, 113-16 dipolar model, 285, 288 magma chamber (AMC), 175

Appalachian 177, Apparent (figure) from several faces, 79 88-89 Argon, 302 Basin, Arkoma Asthenosphere, also phere 14 defined, description of, earthquakes and, 205 gravity and, 38 properties of, 217 seismic waves and, 46 volcanism and, 31, 32,34 Adlantic Ocean, 95 (figure) Attenuation, 4 Automatic Gain 113 fault Auxiliary Average velocity, Axial Axial 162-63 Bachmann, G.

178 (figure) wedges, 26 (figure), chaotic expression of deformed 171 147-50 171 169, 168, 159, rift zones, 171 basin sediments, and, 64 122-24 102 reflection and, 118, Acquisition. See Seismic acquisition (figure) 315, 316, 317 model, 255, 260-61, 262, 272 ranges, 256, 259, 159 177, 175, (figure), for, 269-70, gravity anomaly maps for, 272 (table) 161 160, (table), 345,

Index A 177, Aar Massif, Absolute gravity, 234, 235, 236 113 Absorption, Acceleration. See Gravitational acceleration Accretionary 146 27,37, sediments, earthquakes and, 205 Nankai Trough, in in subduction zones, Acoustic impedance, 4, 57 in continental 161-62 forearc in reflected arrival reflection coefficient and, seismic seismic waveforms and, 122-24 Advection, Aeromagnetic surveys, 296

ee semen ee ee

level) level) km
below sea below sea 40.6 = z km 1 =

Exercises +26.4 mGal boundary 47.5
: km — 138.3 mGal km —234.6 mGal; +234.6 mGal;z

Selected = = (Moho 46.2 = =

to Ag(Moho) (lith/asth Ag(lith/asth) km Ag(Moho) Ag(topo) °C/km
Answers Maximum km Maximum 11.2 = Maximum Maximum 29.7 0.08 W/m? =35km ~60km ~20km ~=35km

D ii) 82.5 = hy i) - Az(Moho) i) ii) ~6cm/year cm/year 4.7 = dT/dz q ~ = i) ii) i) ii)
Appendix b) c) a) 8-8 b) b) 9-4 = 9-5 a) 10-1 b) a) 10-3 b)

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