Page 113 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

d or
is "
2000 km 4.62 467 Zone i rey a margin off refraction studi The Int (b) from of Elsevier Science Pub a B v. 95

Ocean 1.93 5.01194 Subduction epee profiling of the passive continental

1500 Atlantic 1000 km studies in oceanic regions. Num based Geophysical Union, Washington, D. C.

Y, Cascadia thickness,
Ridge 1000 Cross section of velocity and lines represent the tops of critically refracting layers. c) Section based on Cascadia Subduction Zone off the Oregon coast (Shor et al., 1968). (a) and

Mid-Atlantic Anomalous 500 Ridge Fuca seismic refraction al., 1965). b) Results of refraction Constitution and Evolution, 2nd ed., © 1982. Redrawn with permission New York. (c) from Seismic refraction studies off Oregon and northern California, Journal of Geophysical Research, _ of the American

de
500 refracting layers. a)
Juan (Sediments) Composite cross sections based on (Talwani et

1 Ridge Ridge and pp.2175-2194, © 1968. Redrawn with permission
195 (km/s) from (Ewing, 1965). Short, bold
DIA Earth: Its Structure,
0 [E==] Oceanic Layer
0 C 4.18 wave velocities near the Mid-Atlantic of the Juan de Fuca
a FIGURE Argentina of the

46° Aa?
28° ee al., 1985; and
Republic; ranges and et
26" Slovak Republic;
Czech mountain thickness (km) in central Europe, based principally
‘ 24 = =

Map Molesse Foredeep Thickness <30 km Austria; C Serbia; SI] Carpathian collisional
Tectonic Crustal = (c).A =

200km 10 200km 100 Europe. Box shows area of (b) and = Poland; R (after Salters et al., 1988).c) Map of crustal
b) [E25] c) 56 Romania; Se the top of the mantle. (Compiled from maps of Berének, 1978; Mayerové

0 100 = P Moldavia; = Slovenia. b) Tectonic map of central Europe, showing Eastern Alpine and al. (1994).

and central a) Map of western Italy;M = | Hungary; Basin continental rift zone from Lillie et in (c) é

4.17 = Germany; H observation of critical refractions Tomek, 1988). Maps (b) and 94
FIGURE = G = Sv Pannonian on