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GEOG 3000 - Lecture Notes
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All of the lecture notes from GEOG 3000 - Geomorphology, taught at the University of Guelph. All hand-written notes.
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GEOG 3000,NOTES
, Geomorph Refresher
GEOMORPHIC PRINCIPLES
Balance / landforms and
equilibrium between Processes may be linked such tha
_
-
processes may initiate the action of another
Perceived Can
equilibrium is created by the interaction view over various time interva
-
•
of force and resistance framework used will have an effe
that
Changes in
driving force and/or resistance may can be made about processes an
-
stress the system beyond the defined limits of
stability >
-
thresholds and complex responses
DIVERSITY OF FORM
Ephemeral usually dry except immediately after Channel substrate
- -
-
rainfall '
Bedrock -
> alluvial
.
Perennial -
flows year round-
'
Southern Ontario -
> semi -
alluvial
DRAINAGE NETWORK PATTERNS grow upslope +
into continuous stream
integrate
Dendritic trellis parallel radial
rectangular
-
, , , ,
DRAINAGE DENSITY
Glock 11931 ) proposed 5 / see picture)
stages
•
continued channel
erosion -7 losses
focuses
21st century work on
geological variability first-order
'
of
streams
through time and space
lithology
↳ Tectonic activity , ,
structure
, Factors in Fluvial Systems
WHAT FACTORS INFLUENCE RIVER SYSTEMS ?
Climate / weather
Vegetation human anim
-
non
-
+ -
Interactions with humans
Topography
-
'
Geology
.
PROCESS + FORM
sediment
Example of connectivity in a riv
-
yield
)
↳
longitudinal water mov
-
< to downstream
↳ lateral -
channel < >
flo
↳ Vertical
groundwater
- <
branches ,
]
logs ,
etc .
all connected to
one another
c)
FACTORS THAT INFLUENCE SHAPE
Balance of and forces Variation of
driving resisting discharge
- .
Erosion of channel boundary Channel slope ( called gradie
.
-
deposition of sediment 95% of
Reworking and is used to overc
-
energy
'
•
Depends on channel type 1 bedrock us alluvial) .
resistance
5% of is used for
energy geom
-
~
DRAINAGE NETWORK PATTERNS
Parallel trellis and patterns Radial commonly found vo
rectangular is on
-
are
-
, ,
due to structural
geography
DRAINAGE DENSITY
Space for time studies 21st century work focuses
^
on
.
- -
↳
subspace for time variability
↳ Look at 1000 Channels ↳
through space and tim
over one year Tectonic activity ,
litholog
instead of 1 Channel over 1000 years
FLOW AND SEDIMENT SUPPLY
Form
adjusts in response to fluctuations in
-
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