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This animation illustrates subduction of an oceanic plate beneath continental crust and the processes that can result in volcanic eruptions. Users can stop, play, fast forward and rewind the animation at any time to stress important points.
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Choosing & Using this resource...
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Exploring Earth Visualizations -
http:/
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This resource defines and describes composite volcanoes, stratovolcanoes, subduction-zone volcanoes and composite cones. The information is from different sources and therefore the site gives a broad picture of these forms. The shape of the volcano is described as a function of the type and frequency of eruption and its proximity to plate boundaries.
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This
page
explains
the
tectonic
setting
of
the
west
coast
of
North
America.
It
explains
the
process
of
the
subduction
of
the
Juan
de
Fuca
plate
beneath
the
North
American
plate.
It
describes
the
methods
used
to
observe
tectonic
deformation
caused
by
subduction,
and
explains
how
they
are
used
to
estimate
earthquake
potential
in
the
region.
Links
are
provided
to
the
Geological
Survey
of
Canada's
Geodynamics
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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This
site
is
part
of
the
United
States
Geological
Survey,
Cascade
Volcano
Observatory
web
site.
It
provides
general
information
about
the
theory
of
plate
tectonics.
It
correlates
specific
landform
types
and
physical
processes
with
the
types
of
plate
boundaries
where
they
occur.
The
explanation
of
each
boundary
type
includes
real
world
examples
and
links
to
United
States
Geological
Survey
web
pages
...
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The
objective
of
this
activity
is
to
allow
students
to
manipulate
real
data
and
understand
how
such
data
are
interpreted
and
used
in
support
of
a
theory.
The
concepts
studied
are
maps,
earthquakes,
and
plate
tectonics,
particularly
a
subduction
zone
plate
boundary.
The
student
will
learn
or
be
refreshed
on
using
latitude
and
longitude
for
mapping
purposes.
The
activity
should
be
used
in
a
unit
on
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Related resources and collections
This resource is referenced by :
The Geological Society of America: Resources for K-12 Earth Science Educators -
http:/
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The Pacific Northwest Geodetic Array (PANGA), an organization devoted to the study of earthquakes and crustal deformation along the Cascadia subduction zone, provides information on the organization's facilities, personnel, and research projects, as well as links to datasets on earthquakes and crustal motion.
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This animation illustrates how tsunamis can be caused by underwater earthquakes, which are frequently located at subduction zones where oceanic plates are slipping under continental plates.
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This
National
Oceanic
and
Atmospheric
Administration
(NOAA)
site
presents
video
animations
and
maps
of
exploration
routes,
bathymetry,
undersea
tracks
of
submersibles,
satellite
imagery,
aerial
photography.
The
section
of
animated
images
includes
a
three-dimentional
flythrough
created
by
using
bathymetric
data,
video
animations
of
a
mid-ocean
spreading
center,
an
animation
of
the
subduction
zone,
...
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This
information
on
the
two
major
types
of
plate
interaction
and
the
resulting
features
discusses
the
Mid
Atlantic
Ridge
and
the
mid-ocean
ridges
in
connection
with
divergence
and
ocean
trenches
and
connects
the
Pacific
Ring
of
Fire
to
the
concept
of
subduction.
Volcanic
activity
as
a
result
of
subduction
is
also
covered.
The
site
also
features
links
to
goals,
objectives,
and
materials
for
a
hands-on
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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This
50
slide
PowerPoint
presentation
introduces
the
basic
structural
facets
of
an
island
arc
system.
Magma
series
(tholeiitic,
alkaline,
calc-alkaline)
and
differentiation
within
magma
series
are
related
to
the
major
elements.
Other
trends
in
magma
series
(spatial,
temporal,
trace
element,
isotope)
are
presented.
Petrogenesis
of
magmas
is
illustrated
in
terms
of
mantle
flow,
rate
of
subduction
and
...
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This resource is part of :
Igneous and Metamorphic Petrology Class Materials -
http:/
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