folded mountains form
DESCRIPTION
Folded mountains form. When isostasy occurs When continents collide (like Asia and India, and the Himalayas) When continents diverge After earthquakes. When the oceanic and continental lithospheres collide. Oceanic plates subduct Continental plates subduct They stop each other - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/1.jpg)
Folded mountains form
• When isostasy occurs• When continents collide (like Asia and
India, and the Himalayas)• When continents diverge• After earthquakes
![Page 2: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/2.jpg)
When the oceanic and continental lithospheres
collide
• Oceanic plates subduct• Continental plates subduct• They stop each other• They reach isostasy
![Page 3: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/3.jpg)
What happens when two oceanic plates collide?
• The denser plate fractures• The less dense plate fractures• The less dense plate subducts• The denser plate subducts
![Page 4: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/4.jpg)
What type of mountain is formed when higher blocks
fault?
• A folded mountain• A salt-block mountain• A fault-block mountain• A flawed-block mountain
![Page 5: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/5.jpg)
What happens when two continental plates collide?
• Large mountains can form• Dome mountain are likely to form• The plates subduct beneath each other• The impact can cause large
earthquakes
![Page 6: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/6.jpg)
What is subduction?
• Once plate collides with another• One plate destroys another• One plate goes beneath another• One plate divides another
![Page 7: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/7.jpg)
Which of these are all types of mountains
• Rolling, glacial, subterranean, cascades• Rocky, green, smoky, white• Fault-block, dome, volcanic, folded• Salt-block, dome,magmun,frozen
![Page 8: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/8.jpg)
What happens when oceanic and continental plates collide?• The asthenosphere and the lithosphere
are disrupted• The continental lithosphere subducts
beneath the oceanic lithosphere• Mountains can be created through uplift
and volcanic eruptions.• Valleys are created by the excessive
energy release
![Page 9: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/9.jpg)
A dome mountain is a mountain formed
• By the collision of continental plates• By the eruption of magma from below
Earth’s surface and out the top.• When faults break off dome-shaped
rocks• By pressure from magma below Earth’s
surface that does NOT erupt
![Page 10: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/10.jpg)
A volcanic mountain is formed by
• The uplift of rock during continental plate collisions
• Rock layers that are bent and squeezed• Pressure of magma that does NOT
erupt on the Earth’s surface.• Magma eruptions on Earth’s surface
![Page 11: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/11.jpg)
What are the fasted waves?
• P waves• T waves• S waves• Q waves
![Page 12: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/12.jpg)
Earthquakes generally occur at plate boundaries where
• Stress on rocks is greatest• The most rocks found• Stress on rocks is low• Magnetic pull is greatest
![Page 13: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/13.jpg)
To find the distance to an earthquake’s epicenter,
scientists• Chart the lag time between preshocks and
aftershocks• Use radio wave detection devices• Analyze the arrival times of P and S
waves.• Analyze the arrival times of Love waves an
Rayleigh waves.
![Page 14: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/14.jpg)
If you are in a car during an earthquake, you should
• Drive to a bridge• Stop in a safe place• Get out and run like the wind• Park east of tall buildings
![Page 15: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/15.jpg)
What happens to tsunamis as the move toward shore?
• They decrease in height• The die out• They turn to riptides• They increase in height
![Page 16: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/16.jpg)
Which is NOT a cause of tsunamis?
• Volcanic eruption• Tornado• Undersea landslide• Undersea earthquake
![Page 17: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/17.jpg)
P waves are also known as
• Secondary waves• Compression waves• Love waves• Rayleigh waves
![Page 18: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/18.jpg)
How do scientist find the epicenter of an earthquake
• By comparing arrival times of P and S waves
• By digging as several locations• By comparing departure times of P and
S waves• By looking at satellite photos of
tsunamis
![Page 19: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/19.jpg)
Why do earthquakes usually occur at plate boundaries
• The rock at the edges of tectonic plates is soft, and gives easily
• Rock at the edges of tectonic plates is under great stress.
• The boundaries between tectonic plates have been seismically active for millions of years
• The last place that motion in an earthquake is detected.
![Page 20: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/20.jpg)
This area is both a major earthquake zone and volcano
zone.
• Pacific ring of volcanoes• Pacific ring of fire• Oceanic ring of fire• Pacific island arc
![Page 21: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/21.jpg)
Lichens and moss produce weathering agents called
• Exfoliation• Organic activities• Organic acids• Sulfuric acids
![Page 22: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/22.jpg)
Which of the following is NOT an agent of mechanical
weathering
• Ice• Wind• Acid• Gravity
![Page 23: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/23.jpg)
Abrasion is caused by all of the following EXCEPT
• Wind• Water• Ice wedging• Gravity
![Page 24: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/24.jpg)
How does the amount of a rock’s surface area affect
weathering?
• Larger area, more weathering• Larger area, less weathering• Smaller area, more weathering• No affect at all
![Page 25: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/25.jpg)
Plant and animal activities cause what king of weathering• Chemical• Mechanical• Chemical and mechanical• None at all
![Page 26: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/26.jpg)
Climates that have the fastest rate of weathering are
• Hot and dry• Hot and wet• Cold and dry• Cold and then hot
![Page 27: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/27.jpg)
Steep slopes have high amounts of what kind of
weathering
• Chemical• Mechanical• Chemical and mechanical• None
![Page 28: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/28.jpg)
Tropical climates generally form soil in which the “B”
horizon is covered in a thin layer of
Sand
Rock
Humus
Clay
![Page 29: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/29.jpg)
In which of the following erosion processes is gravity
NOT a major factor• Creep• Mudflow• Dust storm• Slump
![Page 30: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/30.jpg)
Which of the following is an example of a peneplain?
• Low, rolling hills• Sand dunes• Valleys• Ponds
![Page 31: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/31.jpg)
In what kind of climate is the weathering rate the slowest
• Cold, wet• Alternating hot and cold• Hot and dry• Warm and humid
![Page 32: Folded mountains form](https://reader035.vdocuments.net/reader035/viewer/2022081514/568167c5550346895ddd13b6/html5/thumbnails/32.jpg)
When overlying rocks are removed from granite that was formed deep beneath Earth’s surface decreases, and the granite forms long curved
cracks called
• Exfoliation• Joints• Gullies• Valleys