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This
is
a
brief
description
of
the
results
of
plate
movement
according
to
the
Theory
of
Plate
Tectonics.
It
explains
how
divergence
at
the
mid-ocean
ridges
accounts
for
the
discoveries
of
Harry
Hess.
The
site
also
refers
to
the
invention
of
the
magnetometer
and
the
discovery
of
the
young
age
of
the
ocean
floor
basalt.
It
concludes
that
these
are
the
kinds
of
discoveries
and
thinking
that
ultimately
...
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Choosing & Using this resource...
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This
page
provides
an
overview
of
the
role
of
plate
tectonics
in
the
generation
of
earthquakes.
It
provides
a
map
of
plate
locations
and
figures
that
illustrate
fault
types
and
tectonic
environments
(extensional,
transform,
and
compressional).
Examples
of
surface
features
in
the
Pacific
Northwest,
Nevada,
Indonesia,
the
San
Andreas
Fault,
the
Red
Sea,
the
Zagoros
Mountains
in
Iran,
and
on
the
planet
...
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The distribution of earthquakes and volcanoes around the world confirmed the theory of plate tectonics first proposed by Wegener. These phenomena also help categorize plate boundaries into three different types: convergent, divergent, and transform.
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In
the
early
1900s,
most
geologists
thought
that
Earth's
appearance,
including
the
arrangement
of
the
continents,
had
changed
little
since
its
formation.
This
video
segment
describes
the
impact
the
theory
of
plate
tectonics
has
had
on
our
understanding
of
Earth's
geological
history,
and
provides
a
brief
overview
of
what
is
currently
known
about
the
Earth's
tectonic
plates
and
their
motions.
The
segment
...
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Choosing & Using this resource...
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This
web
site
was
put
together
by
the
U.S.G.S.
(United
States
Geological
Survey)
and
the
N.P.S.
(National
Park
Service)
and
provides
an
overview
of
plate
tectonics.
It
begins
by
explaining
about
the
Earth's
core,
mantle,
and
crust.
It
then
discusses
the
crustal
plates
and
the
types
of
plate
boundaries
(convergent,
divergent
and
transform).
The
lesson
ends
with
paleogeographic
reconstructions
of
plate
...
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This
text
explains
how
detailed
mapping
of
the
ocean
floor
led
scientists
like
Howard
Hess
and
R.
Deitz
to
revive
the
Holmes
convection
theory.
Hess
and
Deitz
modified
the
theory
considerably
and
called
their
new
theory
Sea-floor
Spreading.
Among
the
seafloor
features
that
supported
the
sea-floor
spreading
hypothesis
were:
mid-oceanic
ridges,
deep
sea
trenches,
island
arcs,
geomagnetic
patterns,
and
...
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This module offers an introduction to the concepts explored by Alfred Wegener, Harry Hess, and others. It is the first in a series on plate tectonics.
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This
publication
provides
an
introduction
to
the
theory
of
plate
tectonics.
It
was
intended
as
a
companion
to
the
map
entitled
'This
Dynamic
Planet',
published
by
the
U.S.
Geological
Survey
(USGS)
and
the
Smithsonian
Institution.
Topics
include
the
history
and
development
of
the
theory,
lines
of
evidence,
plate
motions
and
interactions,
hotspots,
what
drives
plate
motion,
and
extraterrestrial
plate
...
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National Science Education Standards (NSES), National Geography Standards: Read
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This
lesson
provides
an
overview
of
destructive
earthquakes
and
their
connection
to
tectonic
movements
of
the
Earth's
crust.
It
includes
a
discussion
of
some
especially
destructive
historic
earthquakes,
and
a
brief
introduction
to
contintental
drift
and
the
theory
of
plate
tectonics.
There
is
also
discussion
of
basic
seismology
(types
of
waves)
and
measures
of
the
magnitude
of
an
earthquake
(the
Richter
...
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This
is
a
brief
overview
of
the
Theory
of
Plate
Tectonics.
According
to
the
theory,
the
Earth's
surface
layer,
or
lithosphere,
consists
of
seven
large
and
18
smaller
plates
that
move
and
interact
in
various
ways.
Along
their
boundaries,
they
converge,
diverge,
and
slip
past
one
another,
creating
the
Earth's
seismic
and
volcanic
activities.
These
plates
lie
atop
a
layer
of
partly
molten
rock
called
...
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Educational standards associated with this resource:
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