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This
video
explores
the
role
of
biogeochemical
cycles
in
the
formation
of
caves.
It
discusses
a
radical
new
theory
that
identifies
sulfuric
acid
as
a
cave-forming
agent.
The
video,
adapted
from
a
NOVA
broadcast,
identifies
the
source
of
the
sulfuric
acid,
which,
unlike
carbonic
acid,
the
typical
cave-forming
agent,
does
not
readily
form
in
nature.
The
segment
is
5
minutes
and
forty
seconds
in
length.
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This video documents an experiment conducted in Kane Cave, Wyoming, to see if microbes that inhabit the cave could actually be contributing to the cave-formation process. Adapted from a NOVA broadcast, the segment is four minutes and twelve seconds in length.
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This
video
segment
shows
how
scientists
collaborate
to
collect
and
chemically
analyze
samples
of
molten
lava
as
part
of
their
quest
to
learn
more
about
how
volcanoes
work.
Working
at
Kilauea
volcano,
scientists
collect
samples
of
lava
before
it
has
a
chance
to
cool
so
they
can
study
the
chemical
properties
it
had
when
it
was
deep
within
Earth's
interior.
The
samples
are
sent
to
a
laboratory
where
...
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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
interactive
site
introduces
students
to
concepts
related
to
asbestos
and
how
geologists
analyze
asbestos
in
building
materials.
The
site
is
divided
into
three
components:
the
geology
of
asbestos,
identifying
asbestos
in
the
lab,
and
asbestos
in
our
world.
Each
section
of
the
site
provides
information,
images
and
interactive
quizzes.
Of
particular
interest
is
the
use
of
images
to
simulate
use
...
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Choosing & Using this resource...
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This
guide
provides
instructions
for
educators
on
the
classroom
use
of
the
Geochemistry
of
Rocks
of
the
Oceans
and
Continents
(GEOROC)
database.
GEOROC
provides
chemical
and
isotopic
data
for
rocks,
minerals,
and
melt/
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Choosing & Using this resource...
Pedagogical help
Skills:
Read (2)
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This
guide
instructs
teachers
in
classroom
use
of
the
MELTS
software
package.
MELTS
is
a
software
package
designed
to
facilitate
thermodynamic
modeling
of
phase
equilibria
in
magmatic
systems.
It
is
used
by
scientists
to
model
igneous
processes
such
as
the
composition
of
magma
melts
as
pressure
and
temperature
change,
or
to
test
scenarios
such
as
how
much
sulfur
a
volcano
gives
off.
Teaching
topics
...
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Choosing & Using this resource...
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The
Johnston
Geology
Museum
is
part
of
the
Emporia
State
University
Earth
Science
Department.
The
Museum
is
open
to
the
public
and
displays
the
Universities
collections.
There
is
an
online
virtual
tour
of
the
collection
which
includes
a
Cretaceous
mosasaur,
a
giant
ground
sloth,
mastodon
bones
and
tusk,
brachiopods,
Paleozoic
corals,
sedimentary
structures,
minerals
and
crystals.
The
Museum
contains
...
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This page of text, from the US Geological Survey's Geology in the Parks website, discusses the difference between weathering and erosion.
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Studies
of
the
chronology
of
martian
meteorites
can
distinguish
various
events
in
the
history
of
the
meteorites
and
give
ground
truth
to
Martian
geology.
This
article
discusses
the
use
of
radiogenic
isotope
dating
to
distinguish
impact
ages,
establish
exposure
ages,
define
ejection
times
of
meteorites
from
Mars,
and
establish
terrestrial
ages,
which
begin
with
the
arrival
of
the
meteorites
on
Earth.
...
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Choosing & Using this resource...
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This chapter on the formation of Karst topography discusses susceptible rock types, how dissolution occurs, and the general appearance of Karst landforms. Tables, maps, figures, and photographs of Karst landforms from around the world are included. It is part of 'Geomorphology from Space', an out-of-print publication of the National Aeronautics and Space Agency (NASA).
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Choosing & Using this resource...
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