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Topic 2 Biography of the Earth, formation of continents - Coggle Diagram
Topic 2 Biography of the Earth, formation of continents
CONTINENTS FORMATION
The Earth's crust has been fragmented into several pieces, called TECTONIC PLATES, which have been displaced because they belong to the lithosphere (including continents and oceans), which "floats" on a fluid cover (called the asthenosphere).
OROGENESIS: Creation of Mountain Ranges, through subduction. One tectonic plate sinks beneath the other (subduction)
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GEOLOGICAL ERAS
The Mesozoic era ("intermediate life"): It is also known as the age of the dinosaurs, saw with its hot climate the diversification and multiplication of animal and plant life on earth.
The Cenozoic era ("new life"): It covers the last 65 million years, until today. In this period, there is the collision of Asia with India and Arabia with Eurasia, giving rise to the Alps and the Himalayas. More complex forms of life appear mammals, hominids. Homo sapiens and the current human being.
The Paleozoic era ("ancient life"): It extended for 312 million years and it is when the Earth was divided into several continents.
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THE EARTH, PLANET
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It did not have atmosphere or water, and it was still receiving many impacts of meteorites.
Little by little, the heat descended and allowed to form a stable crust.
At the beginning it was like a pile of rocks whose interior had a lot of fire, so much that the heat melted the whole planet.
That lava, when it cooled and consolidated, formed layers.
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BIG BANG
The whole universe was a huge dense and hot mass, and about 13,800 million years ago, that mass exploded. It is known as the BIG BANG.
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