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This
website,
created
and
maintained
by
the
Natural
Resources
Conservation
Service,
contains
an
interactive
map
containing
climate
information
for
each
state.
Users
can
click
on
states
and
find
information
and
data
for
every
county
in
every
state.
Data
includes
daily
mean
temperature,
frost
free
days,
growing
season,
and
monthly
temperature
and
precipitation.
Users
may
also
download
data
from
this
...
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Choosing & Using this resource...
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This
USGS
report
presents
an
overview
of
the
interactions
between
ground
water
and
surface
water
in
a
variety
of
terrains.
It
serves
as
a
general
educational
document
with
the
intention
of
helping
agencies
understand
the
basic
science
involved
in
the
management
and
protection
of
aquifers
and
watersheds.
The
report
describes
the
natural
processes
of
ground
water
and
surface
water
interactions
and
the
...
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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The
Natural
Resources
Conservation
Service
(NRCS)
installs,
operates
and
maintains
an
extensive,
automated
system
to
collect
snowpack
and
related
climatic
data
in
the
western
United
States
called
SNOTEL
(for
SNOwpack
TELemetry).
SNOTEL
sensors
collect
hourly
data
on
temperature,
precipitation
and
snow
water
equivalent.
Data
can
be
displayed
as
tables
or
graphs
for
individual
stations,
drainage
basins
...
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Choosing & Using this resource...
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This
site
examines
the
crystal
chemistry
of
some
common
mineral
groups,
including
garnet,
plagioclase,
pyroxene,
mica
(muscovite
and
biotite),
and
amphibole.
For
each
group,
the
topics
considered
include:
the
sites
in
the
crystal
structure
on
which
the
principal
substitutions
take
place,
the
typical
ranges
of
observed
composition
variation,
how
to
assess
the
quality
of
analyses
from
looking
at
the
...
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Choosing & Using this resource...
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This
site
is
a
lecture
by
Dr.
Stephen
Nelson
from
Tulane
University
that
explores
the
32
possible
combinations
of
symmetry
operations
that
define
the
external
symmetry
of
crystals.
The
lecture
defines
the
six
crystal
systems
(triclinic,
monoclinic,
orthorhombic,
tetragonal,
hexagonal,
and
isometric)
and
explains
the
derivation
of
the
Hermann-Mauguin
symbols
(also
called
the
international
symbols)
...
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Choosing & Using this resource...
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This
site
provides
the
syllabus
for
Dr.
Barb
Dutrow's
class,
taught
at
Louisiana
State
University,
entitled
Earth
Materials
and
the
Environment.
The
course
examines
minerals
and
mineral
dusts
as
both
problems
and
solutions
to
environmental
issues,
as
well
as
public
policy.
The
syllabus
includes
direct
links
to
required
readings
in
the
current
literature,
in-class
overheads,
and
practice
exams.
The
...
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Choosing & Using this resource...
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This
site
provides
an
illustrated
lecture
from
a
geochemistry
course
offered
by
Dr.
Scott
Wood
at
the
University
of
Idaho.
Topics
include
crystal
chemistry,
ionic
substitutions
in
crystals,
weathering
(dissolution,
redox
reactions,
acid
hydrolysis,
and
kinetics),
the
solid
products
of
weathering,
and
the
chemistry
of
continental
waters.
The
lecture
presentation
may
be
downloaded
as
a
PDF
document
...
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Choosing & Using this resource...
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This
resource
provides
illustrated
lecture
notes
from
a
geochemistry
course
offered
by
Dr.
Scott
Wood
at
the
University
of
Idaho.
Topics
include
the
law
of
radioactivity
and
the
general
geochronometry
equation,
the
use
common
radioactive
decay
equations
such
as
K-Ar,
Ar-Ar,
Rb-Sr,
and
U-Th-Pb,
the
use
of
isochrones,
concordia
diagrams
and
discordia,
the
concept
of
"blocking
temperature,"
the
use
of
...
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Choosing & Using this resource...
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This
resource
provides
study
directions
and
materials
for
a
unit
on
deformation
and
creep
as
part
of
a
lecture
from
a
structural
geology
course
taught
by
Dr.
David
McConnell
at
the
University
of
Akron.
The
notes
briefly
cover
microscopic
deformation
mechanisms,
including
microfracturing,
cataclasis,
frictional
sliding,
mechanical
twinning,
and
kinking,
as
well
as
diffusion,
dissolution,
and
dislocation
...
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Choosing & Using this resource...
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This
PowerPoint
presentation
is
part
of
the
Whitman
College
petrology
course.
The
presentation
provides
an
introduction
to
the
structure
of
the
earth
in
the
context
of
the
generation
of
igneous
rocks.
Slides
in
the
presentation
cover
the
composition
of
layers
of
the
earth,
P-wave
and
S-wave
velocities
through
layers
of
the
earth,
pressure
and
heat
characteristics
of
the
earth,
and
regions
of
igneous
...
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Choosing & Using this resource...
Related resources and collections
This resource is part of :
Igneous and Metamorphic Petrology Class Materials -
http:/
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