Download Deep ocean floor sediment

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Welcome
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necessary details to the animator before starting the animation.
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'Instruction slides'
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Formation of The Himalaya
The Himalayas, which stretch ~ 2,900 km along the border between India and
Tibet. This immense mountain range began to form between ~ 40 and 50 million
years ago, when two large landmasses, India and Eurasia, driven by plate
movement, collided.
Related LOs:
> Prior Viewing: Plate tectonics/ Movement
> Future Viewing :

Course Name: Plate Tectonics
Author: Arpita Roy
Mentor: Prof. Soumyajit Mukherjee

Level: Post graduation
*The contents in this ppt are licensed under Creative Commons Attribution-NonCommercial-ShareAlike 2.5 India license
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Learning objectives
After interacting with this Learning Object, the learner will be
able to:
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Describe the geological phenomena of the formation of the
Himalayan Orogeny Phase I
Describe the geological phenomena of the formation of the
Himalayan Orogeny Phase II
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Keywords/Definitions
1. Orogeny: Refers to mountain building processes.
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2. converging continental plates : In plate tectonics, a ‘convergent boundary’, also known as
a ‘destructive plate boundary’ an actively deforming region where two (or more) tectonic
plates or fragments of lithosphere move toward one another and collide. As a result,
earthquakes and volcanoes are common near such convergent boundaries.
3. overthrusts: If the dip of the fault plane is low (generally < 20degree) and the displacement
of the overlying block is large (often in the kilometer scale), the fault is called an
overthrusts.
4. Main central Thrust : The Main Central Thrust, marking the boundary between the Lesserand Higher Himalaya, is a zone of more or less parallel thrust planes along which the rocks
of the Central Crystallines have moved southwards against, and over the younger
sedimentary and met sedimentary rocks of the Lesser Himalaya.
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Keywords/ Definitions
5) Main Boundary Thrust: Separating the Siwalik Formations of the Sub-Himalayas from the
older rocks lying to their north. It is a major structural plane discernible throughout the
length of the Himalayas
6 ) Accretionary wedge or accretionary prism: Formed from sediments that are accreted onto
the non-subducting tectonic plate at a convergent plate boundary. Most of the material in
the accretionary wedge consists of marine sediments scraped off from the down going slab
of oceanic crust, but in some cases includes the erosional products of volcanic island arcs
formed on the overriding plates
7 ) Fore arc basin or arc-trench gap: Depression in the sea floor located between a
subduction zone and an associated volcanic arc. It is typically filled with sediments from
the adjacent landmass
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Master layout or diagram
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Make a schematic diagram of the concept
Explain the animator about the beginning and ending of the
process.
Draw image big enough for explaining.
In the image, identify and label different components of the
process/phenomenon. (These are like characters in a film)
Illustrate the basic flow of action by using arrows. Use BOLD
lines in the diagram (minimum 2pts.)
In the slide after that, provide the definitions of ALL the labels
used in the diagram
You may have multiple master layouts.
• In this case, number the master layout.
(e.g. Master layout 1, 2, 3…)
Master layout
Magma rising
from subduction
zone
Ocean
trench
sediment
Deep ocean
floor
sediment
Continental
shelf
sediment
A
Ocean trench
sediment
Deep
ocean
floor
sediment
Fig. A
Continental
shelf
sediment
Magma
rising
up
Ocean
trench
sediment
Magma
rising
up
Oceanic trench
sediment
B
Deep ocean
floor
sediment
Fig. B
Mantle
Continental
shelf
sediment
C Fig. C
Slivers of
oceanic
crust
Continental
shelf
sediments
D
Fig. D
Continental
crust
Oceanic
crust
Direction of
down going
slab
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Stepwise description of process
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The goal of the document is to provide instructions to an
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explanation.
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Step: 1
Subduction of
oceanic plate
Magma rising
from subduction
zone
Ocean
trench
sediment
Deep ocean
floor
sediment
Continental
shelf
sediment
A
Fig. A
Mantle
Continental
crust
Oceanic
crust
Movement of
the
continental
crust
Direction of
down going
slab
Uprising
magmatic
materials
Description of the action
Audio narration
Text to be displayed
1) Show the down going oceanic plate (as shown in
Fig. A by black arrow)
2) Show the rising of the magmatic materials (as
shown by yellow colored materials and the arrow
is blue colored)
3) The pink colored continental crust drifts closer to
each other (marked by purple colored arrow)
4) Time duration for these event will be 10 seconds
The oceanic plate will go down (subduct) beneath the
mantle and the continental pates are coming towards
each other
Subduction of the oceanic plate will be shown in the
first stage of Himalaya formation
Step: 2 Movement of the continental crust from both side
Ocean
trench
sediment
Magma rising
from subduction
zone
Deep ocean
Continental
floor sediment shelf
sediment
B
Mantle
Fig. B
Continental
crust
Movement of the
continental crust
Uprising of
magmatic
material
Oceanic
crust
Direction of
down going
slab
2,
Step:Step:
2, Movement
of the continental crusts from both side
Description of the action
Audio narration
1) Again show the
The two continental plates
oceanic plate (green
gradually come towards
colored) is going down each others.
ward side ( as shown
here black colored
arrow)
2) Show magma rising
(shown by yellow
colored bubbles here).
The arrow is blue
colored
3) Show the continental
crusts are (pink
colored) drifting from
both sides towards
each other (drifting of
the continental plates
are shown by purple
color)
4) Time duration will be
10 seconds
Text to be displayed
Step: 3 Simultaneous action of closing of the continental crusts from
both side as well as the downward movement of oceanic plate
Magma rising
from
subduction
zone
Ocean
trench
sediment
Continental
shelf
sediment
Mantle
C
Fig. C
Movement of the continental crust
Movement of the up rising
magma
Continental
crust
Oceanic
crust
Direction of
down going
slab
Step: 3 Simultaneous action of closing of the continental
crusts from both side as well as the downward
movement of oceanic plate
Description of the action
Audio narration
1) Again show the oceanic
The two continental plates
plate (green colored) is
gradually come towards each
going down ward side ( as others.
shown here black colored
arrow)
2) Show magma rising
(shown by yellow colored
bubbles here). The arrow
colour is blue colored
3) Show the continental
crusts are (pink colored)
drifting from both sides
towards each other
(drifting of the continental
plates are shown by
purple color)
4) Time duration will be 10
seconds
Text to be displayed
Step: 4 Collision of the two continents result mountain formation (The Himalaya)
Slivers of
oceanic
crust
Oceanic
trench
sediment
Highly elevated area or
mountain
Continental
shelf
sediments
D
Mantle
Continental
crust
Oceanic
crust
Fig. D
Description of the action
Audio narration
1) Show the oceanic plate
(green colored) has totally
subducted and show also the
slivers of oceanic crust on
the above
2) The drifted continental crusts
collide with each other and
finally forms the elevated
part (high land area) or
mountain
The continents drift closer to
each others and finally form
mountain.
Text to be displayed
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Animation design
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Please see the design template provided in the next
slide.
This is a sample template, and you are free to change
as per your design requirements.
Try and rename the tabs / buttons / sections /
subsections as shown in the template.
Slide 3
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Use ‘callouts’ as shown above to explain the source of
content. Ex: If the call out is placed at the Tab 01,
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this presentation, then place this callout on the Tab
01, and write ‘Slide 3’ inside the callout.
Animation design
Subducting
oceanic plate
Magma rising up
wards
Interactivity
area
A
Start
Magma rising up
wards
Magma rising
upwards
Subducting
oceanic plate
B
Definitions
Time
model
Phase I
Continental
plates are
coming
towards each
other
C
PhaseII
Replay
Highly
elevated area
Magma rising
upwards
D
Continental
collision
(Mountain
formation)
Time duration for each Figure will be 10 seconds
Credits
APPENDIX 1
Self- Assessment Questionnaire for Learners
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Please provide a set of questions that a user can answer based
on the LO. They can be of the following types:
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These questions should be 5 in number and can be of
objective type (like MCQ, Match the columns, Yes or No,
Sequencing, Odd One Out).
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The questions can also be open-ended. The user would be
asked to think about the question. The author is requested to
provide hints if possible, but a full answer is not necessary.
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One can include questions, for which the user will need to
interact with the LO (with certain parameters) in order to
answer it.
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It is better to avoid questions based purely on recall.
Questionnaire:
1) Himalaya orogen is associated with which tectonic setting?
a) Oceanic-Oceanic setting
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b) Continental-continental
c) Oceanic- Continental
d) None of these
2) What type of tectonic boundary is related with this Orogeny and why?
a) Transform as two plates slidely pass each other
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b) Convergent boundary as continental collision takes place during
convergence or subduction
c) Divergent as two plates moves away from each other
d) All of these
Questionnaire:
3) What do you mean by continental shelf?
a) Continent and continental shelf is the same
 b) Continental shelf is the extended part of the continent with a gentle slope
c) Continental shelf starts with increasing the slope within a continent
d) None of these
APPENDIX 2
Links for further reading
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In the next slide, provide some reference
reading material for the users.
It could be books, reference publications, or
website URLs.
APPENDIX 2
Links for further reading
1.
http://planet.botany.uwc.ac.za/nisl/gis/assignment_1/k_marais_gis_
2006_assignment_1_cg/images/pic009.jpg
APPENDIX 3
Summary
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Please provide points to remember to understand the
concept/ key terms of the animation, in the next
slide.
The summary will help the user in the quick review of
the concept.
APPENDIX 3
Summary
This immense mountain range began to form between ~ 40 and 50 million years ago, when
two large landmasses, India and Eurasia, driven by plate movement, collided
There are two phases involved in the formation of the Himalaya; phase one is about
collision and formation of it and second phase is about its upliftment.