Mountain Formation and Types

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Questions and Answers

Which geological process is primarily responsible for the formation of fold mountains?

  • Erosion caused by wind and water over millions of years.
  • The collision of tectonic plates, causing the Earth's crust to buckle and fold. (correct)
  • The separation of tectonic plates, creating rift valleys.
  • Volcanic activity leading to the accumulation of lava and ash.

How do block mountains primarily form?

  • Due to the erosional forces of glaciers carving out valleys between peaks.
  • As a result of tectonic plates pulling apart, causing some crustal blocks to be uplifted and others to sink. (correct)
  • Through the gradual accumulation of sediment over millions of years.
  • When magma pushes up the earth's surface.

Which of the following geological features characterizes fault-block mountains?

  • Conical shapes resulting from volcanic eruptions.
  • Smooth, rounded peaks formed by glacial erosion.
  • Gentle slopes caused by the folding of rock layers.
  • Rectangular blocks created by the sinking and rising of parts of the crust through stretching and pulling. (correct)

What is the primary mechanism behind the formation of dome mountains?

<p>Magma pushing upwards beneath the Earth's surface, deforming the overlying rock layers. (B)</p>
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How are volcanic mountains formed?

<p>Through the accumulation of molten rock that cools and hardens on the Earth's surface. (C)</p>
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What geological feature do Mt. Kilimanjaro, Mount Everest, and K2 have in common?

<p>They are all part of a mountain range. (D)</p>
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Mount Fuji is considered a symbol of which country?

<p>Japan (C)</p>
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What distinguishes a mountain from a hill, according to the text?

<p>Mountains are at least 1000 metres high. (B)</p>
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Approximately what percentage of the Earth's surface is covered in mountains?

<p>20% (A)</p>
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Which of the following statements best describes the formation of mountains according to the text?

<p>Mountains are the result of very gradual movements of tectonic plates over long periods. (B)</p>
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Flashcards

What are mountains?

Hills at least 1000 meters high, covering about 20% of Earth and found on every continent.

Fold Mountains

Mountains formed by the collision of two tectonic plates, either on land or under the sea.

Block Mountains

Mountains formed when Earth's crust breaks apart and plates move, forcing land upwards while adjacent land sinks.

Dome Mountains

Mountains formed as magma deep underneath pushes the Earth's surface upwards.

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Volcanic Mountains

Mountains created when red hot magma erupts, cools and piles up over time.

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Fault-Block Mountains

Mountains that form when the earth's pressure causes plates to pull and stretch, causing cracks and some parts to rise while others sink.

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Mount Everest

The highest mountain above sea level, located in Himalayas, Nepal.

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K2

The second-highest mountain, located in the Himalayas on the Pakistan-China border considered unclimbable.

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Denali

Also known as Mount McKinley, located in Alaska, USA

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Mt Kilimanjaro

Located in Tanzania, East Africa. Has three volcanic cones: Shira, Mawenzi and Kibo.

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Study Notes

  • Mountains are hills at least 1000 meters high.
  • Mountains cover approximately 20% of the Earth and exist on every continent.

Earth's Crust and Mountain Formation

  • The Earth's crust consists of giant plates that move due to heat energy circulation.
  • Gradual movement, colliding plates, and moving magma have formed mountains.

Fold Mountains

  • Fold mountains form when two plates collide on land or under the sea.
  • Giant folds are created as enormous plates move towards each other.

Block Mountains

  • Plates on the Earth's crust break apart as they move.
  • A piece of land is forced upwards while land on either side is pushed down, creating 'block mountains'.

Fault-Block Mountains

  • The Earth's pressure causes plates to pull and stretch.
  • Pulling and stretching causes small cracks within the crust.
  • Some crust parts sink, while others rise, forming rectangular blocks, known as fault-block mountains.

Dome Mountains

  • Dome mountains form when magma deep underneath the Earth's surface pushes upwards.
  • Over time, the ground wears away, revealing the dome mountain.

Volcanic Mountains

  • Mountains form when red-hot magma erupts, cools, and piles up.

Lithosphere and Mountain Formation

  • The lithosphere, a combination of the crust and deep rock layer, impacts mountain formation.
  • Tectonic plates, which are large stone plates on the crust, allow for ongoing mountain formation.

Famous Mountains

  • Mountains are landscapes with steep slopes rising over 300m, or 600m according to some geographers.
  • Mountains can be in groups called ranges, or isolated summits.

Mt. Kilimanjaro

  • Location: Tanzania, East Africa.
  • Highest Peak: 5895m.
  • Over 150 mammal species have been recorded, including the blue monkey and the white-necked raven.
  • Rare sightings of elephants, giraffes, buffalo, and porcupines occur in the lower regions.
  • Multiple routes exist to ascend Kilimanjaro, with the snow-capped Uruhu Peak as the highest summit.
  • Covered with glacier ice.
  • Glaciers have shrunk 80% since 1912 and may be ice-free within 20 years.
  • The volcanic peaks Shira and Mawenzi are extinct, but Kibo, the highest peak, is dormant.
  • The last major eruption: 360,009 years ago.
  • Contains examples of virtually every ecosystem: glacier, snowfields, deserts, alpine, moorland, savannah and tropical jungles.
  • Three volcanic cones: Shira, Mawenzi, and Kibo.

Mt. Everest

  • Location: Himalayas, Nepal.
  • Highest Peak: 8848m.
  • Wildlife: Himalayan black bear, Himalayan tahr, snow leopard, red panda, and musk deer.
  • Thousands of recorded expeditions to the summit.
  • The British expedition involving Sir Edmund Hilary and Tenzing Norgay completed the first confirmed assault in 1953.
  • Part of the Himalayan mountain range, straddling Nepal and Tibet.
  • Over 60 million years old.
  • It consists of shale, limestone, and marble.

K2

  • Location: Himalayas, Pakistan/China border.
  • Highest Peak: 8611m.
  • Includes the Himalayan wild yak and wild goat, with over 300 mammal species inhabiting the Himalayas.
  • It is the second-highest mountain and considered one of the most dangerous to ascend.
  • Located on the Pakistan-Chinese border.
  • Achille Compagnoni and Lino Lacedelli completed the first ascent in 1954.
  • Also called 'Chagori', meaning "large mountain".

Denali

  • Location: Alaska, USA.
  • Highest Peak: 6190m.
  • Wolves, bears, caribou, and moose inhabit the national park.
  • Dall sheep and various bird species live high up the mountain.
  • Climbed regularly, taking two to four weeks for an ascent.
  • Achille Compagnoni and Lino Lacedelli completed the first ascent in 1954.
  • Formerly known as Mount McKinley, but renamed Denali in 2015.

Punyak Jaya (peak)

  • Location: Mount Jayawijaya, Indonesia.
  • Highest Peak: 4884m.
  • Features wildlife similar to Australasia, including tree kangaroos, wallabies, and bandicoots.
  • Ascending the mountain involves a route through dense jungle with lots of rainfall, making it a difficult trek.

Mount Elbrus

  • Location: Caucasus Mountains, Russia.
  • Highest Peak: 5642m.
  • The region is inhabited by the Caucasian red deer, Syrian brown bear, and Eurasian wolf.
  • Considered the highest mountain in Europe, with a cable car operating in the lower regions.

Mount Fuji

  • Location: Japan.
  • Highest Peak: 3776 m.
  • Squirrels, foxes, and birds are commonly spotted, with rare sightings of black bears and the Japanese serow.
  • Best climbing season: early July to mid-September.
  • Popular climbing location during a festival week in August.
  • A historic site symbolizing Japan, inspiring artists and poets for centuries.
  • Mount Fuji is an active volcano but has not erupted since 1708.

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