PPT presentation on different geologic processes involved in the formation of different landforms. the presentation also includes discussion on other landforms.

1. Processes and landforms

2. Throughout its history, the Earth’s
outer crust is constantly being shaped
by tectonic activities and plate motion.
Along with this, landforms are also
changing and forming.
These landforms are classified
according to their slope elevation, soil
and rock type, stratification, and
orientation.

3. The Nijima Island Formation 600 miles South of Tokyo
• Formed on November 21, 2013

4. What are the branches of science that deals
with the study of Earth’s geographic features?
GEOMORPHOLOGY
 the scientific study of
landforms and the processes
that shape them.
 focuses on understanding
landform history and dynamics
and predicting future changes
through observations,
experiments, and modeling.
TOPOGRAPHY
 the study of the current
terrain features of a region
and the graphic
representation of a
particular landform on a
map.

5. What are the different geographic process responsible
for the changing and formation of landforms?
Deposition of Sediments
 is the geological process in
which sediments, soil and
rocks are added to a
landform or land mass.
 Wind, ice, and water, as
well as sediment flowing via
gravity, transport previously
eroded sediment, which,
is deposited, building up
layers of sediment.

7. Weathering
 is the breaking down
of rocks, soil and minerals
as well as wood and
artificial materials
through contact with the
Earth's
atmosphere, biota and
waters. Weathering
occurs in situ, "with no
movement", and thus
should not be confused
with erosion,

9. Erosion
 the action of surface
processes (such as
water flow or wind) that
remove soil, rock, or
dissolved material from
one location on the
Earth's crust, then
transport it away to
another location.

11. But wait! What are landforms?
 defined the natural physical features on the surface
of the Earth.
 formed by various forces of nature such as water,
wind, ice, and the tectonic plates of the Earth.
 some are created within a day others take millions of
years.
landforms

12. AEOLIAN LANDFORMS
 formed by the chemical and mechanical actions of
the wind

13. DUNES
 mounds or small
hill made up of
sand.
 can be 1-10 m in
height.
 tallest in the world
is found in
Sossusvlai, Namibia
which is 380 m in
height.

14. LOESS
 predominantly
silt-sized
sediment
formed by the
accumulation of
windblown dust.
 product of
glacial activity in
an area.

15. MUSHROOM
ROCK
 also called rock
pedestals
 a natural
occurring rock
that resembles
the shape of a
mushroom.
 formed by
earthquake or
glacial action

16. erosional LANDFORMS
 created from exclusively erosional and weathering
activities.

17. MESAS
 also called “table
mountains
 elevated areas of
land with a flat top
and sides that are
usually steep cliffs
 usually surrounded
by resistant rocks
known as a cap
rock.

18. BUTTES
 almost similar to
mesas as it a has
flat-topped hill
and steep sides
and are formed
in arid to semi-
arid desert
conditions.
 cover a smaller
amount of area

19. CANYONS
 sometimes called
“gorge”
 a deep ravine
between cliffs that is
often carved from the
landscape by a river,
wind, or glacier.
 may appear like a
valley except that it is
deep-seated, narrow,
and surrounded by
steep sides

20. Mountainous and glacial landforms
MOUNTAINOUS
 those tat rise higher than
the rest of their
surroundings.
 can be created by different
tectonic activities.
GLACIAL
 the results of the action of
the glaciers.
 created by the movement
of large ice sheets during
the quaternary glaciations.

22. Fluvial and coastal landforms
 those that underwent sedimentation, erosion, or
deposition on the river bed.

23. DELTA
 a low lying
triangular area
located at the
mouth of rivers
where it meets
oceans, a sea, or an
estuary.
 contains rich soil
which has been
washed away and
deposited by
running water.

24. PENINSULA
 also called byland
or biland.
 a piece of land that
projects into a body
of water and is
connected with the
mainland by an
isthmus.
 landmass is
bordered by water
on three sides.

25. MEANDER
 a bend in a
sinuous
watercourse of
river.
 formed when
moving water in
a stream erodes
the outer banks
then widens its
valley

26. SEA CLIFFS
 are high rocky
coast that plunge
down to the
edge of the sea.
 results of
erosional actions
of water and
wind.

27. Plains
plateaus

29. QUIZ # 4

30. I. Write in Column A the landform as shown in the picture
and in Column B the classification of the landform.
A B
1.
2.
3.
4.
5.

31. II. Describe each
1. Aeolian Landform
2. Deposition of
Sediments
3. Landforms
4. Peninsula
III. Compare and Contrast
1. Weathering and
Erosion

32. Credits
• youtube.com
• google.com
• Science Links 10 (Rex Bookstore)