Soils - Sedimentary Parent Material

Includesshalesiltstonemudstoneclaystone shale

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Unformatted text preview:   transported
by
water
 –  transported
by
wind
 –  pounded
by
the
surf
 (may
be
close
to
the
 source)
 GRAIN
SHAPE
 •  well
rounded
 in
shape
 –  far
from
the
 source
rock
 –  transported
 by
water
 GRAIN
SHAPE
 •  well
rounded
in
shape
 –  transported
by
wind
 GRAIN
SHAPE
 •  well
rounded
in
shape
 –  pounded
by
the
surf
 (may
be
close
to
the
 source)
 COMPOSITION
‐
GRAIN
TYPE
 •  third
stage
of
 classificaKon
 –  Bowen’s
ReacKon
series
 –  the
mafic
minerals
 break
down
first
 –  then
muscovite,
K‐ Feldspar
and
finally
 quartz.

 COMPOSITION
‐
GRAIN
TYPE
 –  If
we
see
olivine
and
 pyroxene
in
sediment
 we
are
close
to
the
 source
rock
 –  Hawaii
‐
black
sand
 –  from
basalt
 COMPOSITION
‐
GRAIN
TYPE
 –  If
K‐feldspar
the
climate
is
likely
to
be
arid
 ARRANGEMENT
OF
GRAINS
 •  fourth
stage
of
classificaKon
 –  
well
sorted
 
















poorly
sorted
 ARRANGEMENT
OF
GRAINS
 •  Glacial
ice
produces
poorly
sorted
sediment
 ARRANGEMENT
OF
GRAINS
 •  Gravity
movement
produces
poorly
sorted
 material
 ARRANGEMENT
OF
GRAIN...
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This note was uploaded on 01/23/2012 for the course GEOL 306 taught by Professor Staff during the Spring '08 term at George Mason.

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