Page 49 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

31 Cartoon example of the interior of the Hawaiian passage of the plate is fac- Two builds of both building therefore the of normally the of plate km 700 compression due boundary. so hot on rift zones or plate therefore

Boundaries Pacific Plate. Volcanoes of the the hotspot. lithosphere, of point. that motion meets motion, top the plates part brittle occur. convergent as deep with occur their descends plate pressure temperature. Decompression a lithospheric are

Plate 2.21 FIGURE beneath hotspot record Islands over the destruction their breaking 2) Earth that in are earthquakes near regime lithospheric cold, earthquakes at occur as to earthquakes at together, lower the a) continental when eruptions
Along and to and material; the of plates Most brittle rigid 2.22a,b). The shallow downward associated are large Very locked the if failure. 2.23): (Fig. at apart up heat volcanic

Manifestations creation hotspots. over stressed brittle part only lithospheric other. each the the (Fig. only that earthquakes extend km) 70 plates. are deeper, brittle situations to higher rip materials Most

the or are of the with within boundaries, km km, so large, (upper both two plates occur undergo two is subjected rises as plates crustal 2.23b).
and formation, boundaries plate materials because presence the Practically material. rigid the where contact in are boundaries, plate transform 100 about than 20 upper the very most and can plate rigid earthquakes of tops the on the where can earthquakes to enough cold in melt material cold asthenosphere Cold (Fig. 2.23a). (Fig. zone
mountain morphism, at concentrated thus Earthquakes occur Earthquakes 1) important: are tors brittle the in stress is conditions these they where stresses near or along occur 2.22). (Fig. plates rigid and divergent At deeper extend not do in generally is plates deep, all Virtually a where boundaries, Shallow 2.22c). (Fig. contortions other and

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Map view of transform River (discussed the to they determined. ductile plates of stresses pressure meta-

2.19 plate boundary connecting two mid- ridge segments. Pacific Plateau/Snake Wyoming relative because be the over of interior and pressure build different volcanism,
FIGURE ocean Transform plate boundary United States. of the San Andreas Fault, the Plate moves north-northwest, relative to Plate. Columbia and be to fixed important thus of plates can . slowly ride the within temperature interactions regions of earthquakes,

1 2 Earthquake Mid-Ocean Ridge Fracture Zone (No Earthquakes) 2.20 Coast the West North American . the Oregon, Idaho, 4 thought are are motions BOUNDARIES enough to Materials the that Horizontal to sink or including
Plate Plate FIGURE on Across the the and hotspots Hotspots absolute so rise

ieee BEE * Plate another. strong deformation. movement, appreciably. materials activity,
segs Pacific Washington, associated which PLATE generally

Tectonics the within of area and one to as through ALONG are internal vertical change not of plates, where tectonic Most

Plate plumes well plates without much does
Islands as framework

2 Plain/Yellowstone Mantle mantle, a undergo materials edges temperature.
Chapter Hawaiian below). deep provide MANIFESTATIONS Lithospheric asthenosphere not do those the near and

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