Page 48 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

Hawaiian
passage of the plate
Cartoon example of
the interior of the
building
of
fac-
so
is
boundary.
therefore
31
builds
due
lithosphere,
Pacific Plate. Volcanoes of the
both
descends
occur
Two
Boundaries
that
meets
point.
motion,
their
earthquakes
earthquakes
motion
the
hotspot.
plate
beneath
Earth that
of
record
their breaking
at
2.21
destruction
together,
Plate
in
lower
over the
2)
hotspot
FIGURE
Islands
are
and
large
Along
Most
the
the
plates
material;
locked
hotspots.
of
Very
and
if
other.

Manifestations
to
part
deeper,
lithospheric
stressed
creation
plates.
are
only
each
brittle
over
two plates
occur
the
both
are
with
the
or
of
Practically
boundaries
materials
rigid
of
can
and
presence
contact
the
tops
earthquakes
formation,
the

where
the
material.
because
in
where
the
plate
on
are
release
1)
contortions
mountain
at
they
is
important:
occur
large
brittle
concentrated
conditions
stress
where
to
Earthquakes
the
morphism,
other
Moderate
sudden
Earthquakes
in
are
stresses
stress
these
thus
and
tors
to
tn tt nla eae in A nk bet the of top the near regime brittle the within boundaries, plate near or along occur 2.22). (Fig. plates rigid normally plates lithospheric rigid the boundaries, transform and divergent At the of part brittle cold, 2.22a,b). The (Fig. km 100 about than deeper extend not do occur. earthquakes shallow only that km, so 20 u
ss
nn
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
30