Page 334 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

and
motion: where convection
few cm/year) convection can occur in
to occur in the
Lithosphere
hot
317
is
it
from depth where
\

Earth
thought
the
is also
redistributing heat. convection contributes to lithospheric plate
Within
Boundary
of boiling water, rising
Mantle
plate convergence. Some convection
Divergent
ee
Heat
Core
very slow rate (a
Lower
Plate
ws
\\ ..
pot
dense. b) Ata
a
in
Heat moves rapidly
rise, plates diverge: descending currents enhance
and
becomes cold
b
Earth's Surface
a)
Heat transfer by convection.
to
it
where
Earth's asthenosphere. In addition
WS
:
Currents
the surface
a
Convection
near
deeper mantle.
10.9
light, falling
currents
FIGURE
a
BERT be
is rapidly surface filling pie through vertical rebound. isostatic and Erosion faulting. b) a) Thrust //eat transfer by advection. 10.10 FIGURE hori- of
of material resemble the the proceeds however, the uplift
205k 8 heat the of or as
(°C) (°C) ; hot center of surface. move at might deforming transferred generally instances, horizontal include well
of Potato ~ Genter of Potato of Earth aero nermnesDats Center of Earth—— the from temperature increase Earth develops an its cool movement currents water denser baking pie convection places is heat flow some large Examples as faults, 10.10). (Fig.
Temperature 5s_s_ Temperature eR sseesseeseenee caecetirnasttet - is conducted interior to its hot with conjunction convection colder, cherry 10.9b); (Fig. in fall, and whereby heat Advective In temperature. material hot significant. thrust rebound
= ss 8 8 $< 8 seer $000 60004 7000! heat a) As near the center. b) The in heat of water, boiling rises; burner the heated. A is it where system rise that currents of convection, state. solid the readjusts of blocks is transfer deep-seated along isostatic and
(uss) o}B}0g UlYYM yideg
Flow Heat transfer by conduction. potato to the cooler surface, a temperature gradient develops. The the surface, more gradual gradient as heat conducts from transfer The of pot a near burner, lithosphere/asthenosphere produces type special a in conduction move quickly heat advective movements erosion to
Heat Dry Potato thermal In water Hot the near a is material that vertical due
10 10.8 rapid near Convection convection. 10.9a). to Earth’s (asthenosphere) (lithosphere). Advection of that so processes so and ranges
Chapter a) FIGURE a is analogous called (Fig descends crust movement slowly, tectonic distances, zontal mountain
: the
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