Mountain Range
Mountain Range
The Himalayas
Peaks kie K2 (8,611 m), Kanchenjunga (8,598 m), Lhotse (8,511
m) and Everest (8,848 m) are found in the Himalayas.
What are the world's highest mountains?
The world's highest mountains are the Himalayas in Asia to
the north of India. The world's ten tallest mountains are found here, including
the Mount Everest. It is 8,848 m high. But the other continents too have their
high mountain ranges. The Andes are in South America, where there are many peaks
over 6,000 m; the Rocky Mountains in North America and the Alps in Europe.
What is the period of mountain formation?
Mountains are being created all the time-although if takes many
millions of years. Most of the world's highest mountains were formed quite
recently. The Himalayas have formed within the last 40 million years –and they
are growing even today.
How do mountains form?
Some mountains are created by volcanic eruptions. But most
mountains are thrown up by the tremendous power of the Earth's crust. Some
mountains are huge slabs called fault blocks or 'horst that are thrown up by
powerful earthquakes. The biggest ranges, though, are created by the crumpling
oft rocks as the great places that make up the Earth's crust squash together.
Mountains that form like this are called Fold Mountains. The Alps, the Himalayas
and the Andes are Fold Mountains.
Where do fold mountains form?
Fold Mountains usually form where the edg9e or a Continent is
crumpled as comes within another tectonic plate. The Andes, for example, were crumpled
up right along the edge of South America, as the place beneath the Pacific ocean
crunched info if. When two continents collide, the mountains may be huge. The Himalayas
are being thrown up where the Indian plate is driving info Asia.
When did mountains form?
Fold Mountains are created in fairly short mountain building phases.
Geologists mean a few tens of millions of years, rather than hundreds. In different
parts of the world, geologists identify different phases from the past. In
North America, there are phases called the Huronian, Nevadian and Pasadenian.
In Europe, there were the Caledonian, Hercynian and Alpine. Most of today's
major mountain ranges were formed in the last 50 million years.
Block Mountains
Are mountains indestructible?
No, each mountain range is slowly worn down by weather,
rivers and moving ice, over millions of years. Scotland's Caledonian mountains
and North America's Appalachians were once among the world's highest, but are
gradually being worn down. Other parts of the world that are now
Why do some mountaintops nave snow?
The higher you go the colder it is. Above a certain level, called
the snow line, it is always too cold for snow to melt, so it stays on the
mountaintops all through the year. The snow line is 5,000 m up in the tropics, 2,700
m in the Alps and at sea level at the Poles. Completely flat were once mountainous.
https://destenyvisit.blogspot.com/
ReplyDelete