Page 328 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

the
upwelling
lithosphere),
materials
10.1).
heat
a
tem-
floor away from
to
of
original
(Fig.
clues
transfer
Earth
intrusions;
Earth
rate
interior across its cold
Heat flow refers to the amount
provide
the
(subducting
flows outward,
surface ina
average
different
the
0.08 W/m’. equivalent to
HFU.
of
the
ocean
Earth,
function
rates
of
1.9
“N
igneous
amount of time. The
107~* cal/cem?/s, or
of the
surface
crosses the
of
Earth
the
flow
Heat
temperate), the
flowan], 10 move gently and smoothly; to pour out.
the Earth across
as
the rate of change
ability
a
[|OE. hatu), the quality of being hot; energy manifest by
gaia. gt, the Earth). pertaining to the Earth.
Earth’s hot
is
(subsidence
degree of hotness; the amount of heat per unit mass of a matcrial.
(young
L. gradi, to step). the amount of slope,
within
heat
surface
the
the
10.1
that
the
into
through
of
FIGURE
is about
surface.
within a material.
heat
of heat
depths
given
and
x
within the Earth,
from
Measurements
\emperatus,
of the
1.9
heat flow (het fld) n., the rate of transfer of heat from
protruding
of
time
n.,
Earth,
0
interior
dé ant)
production
shallow
with heat.
region
of a road: the rate of change of a parameter.
through
R47
<
the
thar'm'l gra’
the accelerated vibration of molecules
in temperature with increasing depth
L.
material
the
a
adj., having to do
of
at
|<
across
10.2).
cooling of material
the
regions
material
from
(tem' prachar) n.,
Flow
|<
Earth,
(Fig.
(je' 6
flow
cold
Poe
outward
n.,
<
different
ridge).
(gra'dé ant)
geothermal gradient
5). (Gr. ged-
hot
heat
asthenosphere),
heat
the
vi., |OE.
thermal (thar'm'l)
of
of
flows
of
conduct
mid-ocean
its surface.
heat (het) n.,
temperature
presence
between
perature
rate
Heat
(fld)
the
gradient
A
(je'
Heat
The
and
Slow
geo-
to
CH
i 211

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