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Biography of the Earth, formation of continents, dropped image link -…
Biography of the Earth, formation of continents
SKILL
To examine the process of formation of the Earth, the management of the continents and the successive geological ages.
1.THE 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.
The extraordinarily dense matter is transformed into a thousand million pieces that were thrown in all directions, at a speed close to the light. Over time, maybe 6000 or 7 billion years later, they reduced their speed. Over time, some masses stayed closer and they were forming what we now know as galaxies.
A galaxy in particular we are
interested in, what we call today MILKY WAY.
1.1 HOW DID THE EARTH, SUN, AND PLANETS APPEAR?
- The mass was transformed into millions of pieces that were thrown in all directions.
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1.2 THE EARTH, PLANET
1.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.
2.Little by little, the heat descended and allowed to form a stable crust.
3.It did not have atmosphere or water, and it was still receiving many impacts of meteorites.
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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).
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OROGENESIS
Creation of Mountain Ranges, through subduction. One tectonic plate sinks beneath the other (subduction)
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It extended for 312 million years.Earth was divided into several continents
First:
Mountains: Appalachian
Animals: mollusk, fish, amphibians, reptiles
Plants: fern
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Multiplication of animal and plant life on earth. Continents adopted the current physiognomy Formation of the Andes: Nazca plates subduction
Last 65 million years, until today
The collision of Asia with India and Arabia with Eurasia gave the rise to the Alps and the Himalayas.
Dinosaurs disappear
Complex forms of life:
•Mammals
•Hominoid
•Homo Sapiens
•Current human being
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