Soils - Sedimentary Parent Material

Heavier materialis depositedrst thennerand ner

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Unformatted text preview: type
and

 –  arrangement
of
these
parKcles.
 GRAIN
SIZE
 •  first
stage
of
classificaKon
 – parental
material
 – distance
of
transport

 – heavier
material
is
deposited
first,

 – then
finer
and
finer
 GRAIN
SIZE
 •  pebbles
 •  gravels
 •  Sand
coarse
‐
fine
 – 0.5‐2mm
 •  silt
 •  clay
 GRAIN
SIZE
 what
does
it
mean?
 •  parental
material?
 –  What
grain
size
was
in
the
original
rock?
 –  Granite 







































rhyolite
 GRAIN
SIZE
 what
does
it
mean?
 •  distance
of
transport

 GRAIN
SIZE
 what
does
it
mean?
 •  
 heavier
 material
is
 deposited
first,

 •  Then
finer
and
 finer
 GRAIN
SIZE
 what
does
it
mean?
 •  then
finer
and
finer
 GRAIN
SHAPE
 •  second
stage
of
classificaKon
 –  Angular
OR
spherical
(rounded)
 GRAIN
SHAPE
 •  Angular
/
irregular
in
shape
 –  close
to
the
source

 –  rock
 transported
by
ice
 GRAIN
SHAPE
 •  well
rounded
in
shape
 –  far
from
the
source
rock
 –...
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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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