Download - Mountainous and glacial landforms
Mounta nous &
Glac al Landforms
Mountainous Landforms
- are those that rise higher than the rest of their surroundings.
- exhibit slopes, summit areas and local reliefs.
- they can be created by different tectonic activities.
Volcanoes
• Are landforms that are controlled by geological processes that form them and continually act on them after their formation
Anak Krakatau in Indonesia
Volcanoes• The volcano’s cone-
shaped structure or edifice is carved out by the more or less symmetrical accumulation of lava and other pyroclastic materials around it’s central vent system
Hills• are elevated portions of
land that are formed by geologic activities such as faulting
• usually covered with grass and are used as grazing lands for goats, cattle and carabaos
• Smaller than mountainsChocolate Hills in Bohol
Hills
• During dry season, the green grasses covering the hills turn brown making the landforms appear like thousands of chocolate hills
The Painted Hills in US
Valley
• Also called as Dale is a low area between hills, often with a river running through it.
• Shapes of Valleys– V-shaped Valley– U-shaped Valley
Ifugao Valley
Valley• A valley formed
by flowing water, or river valley, is usually V-shaped. The exact shape will depend on the characteristics of the stream flowing through it.
Valley
• A tunnel valley is a large, long, U-shaped valley originally cut under the glacial ice near the margin of continental ice sheets such as that now covering
Glacial Landforms
- results of the actions of the glaciers.- are huge slow-moving bodies of ice.- created by the movement of large
ice sheets during the Quaternary Glaciations
- Two types of Glaciers:1. Alpine2. Continental
Continental Glaciers
• Continental Glaciers are formed in cold polar regions
Alpine Glaciers
•Alpine Glaciers are formed in high mountains
Plateaus• Also known as table lands
or flap-topped mountains• Are portions of land
elevated thousands of feet above surroundings
• They are the results of geologic uplifts or the slow movement of large parts of stable areas of Earth’s crust
Plateaus
• Causes of formations of Plateaus–Volcanic
Eruptions–Weathering
Plateaus
• covers about 45% of Earth’s land surface
• low plateaus are often used for farming
• high plateaus are suitable for livestock grazing
Tibetan Plateau
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