The Planet of our origin, our Earth, is the third planet from the Sun, and the only place that as far as we know is inhabited by living creatures. Although the Earth is only planet fifth-largest in the solar system, But the Earth is quite special because it became the only world in our solar system with liquid water on its surface.
Only slightly bigger than Venus nearby, Earth is the biggest of the four planets closest to the Sun, all of which are made of stone and metal. The earth, the place we live is a remarkable planet. So even with the process of the formation of the earth, which must pass through many a long process.
The process of the formation of the earth began about 4.54 billion years ago through the accretion of the nebula to the sun. The release of volcanic gases suspected of creating the atmosphere the old that barely oxygenated and non-toxic for humans and most living beings of the present.
The process of the formation of the earth is always making people curious. How the end of the earth can become a planet worth living in humans and other living beings is an interesting thing to be discussed. Because at the beginning of the process of the formation of the earth, the blue planet is not a planet that is safe for living creatures.
To answer the curiosity, here we tell how the process of the formation of the earth from the beginning to be a place to live that is convenient for living creatures.
The Earth Was Formed
It is difficult to know when the Earth first formed, because there is no stone that survive from the early period of the planet. Reported by livescience.com although scientists do not agree on the details, most of the researchers think the Earth was formed by a series of collisions that occur less than 100 million years after the solar system coalesced. More than 10 collisions with other objects add a huge amount to our planet which is growing, according to most models of the process of the formation of the Earth. By measuring the age of rocks on the moon, and meteorites found on Earth, scientists estimate the Earth’s consolidated to 4.54 billion years ago.
The Collision Of The Earth-Moon
The collision last in a line of Earth time is by Theia, a planetoid rocky probably the size of Mars. Protoplanet this sweeps the Earth, leaving our planet is mostly intact but destroyed itself and fly the Earth’s atmosphere. Debris of Theia, which evaporate condense into the Earth’s moon. Some researchers think the rest of the earth pre-collision still exist deep in the earth’s mantle and the outer core today. The mantle is the layer between the crust of the surface and the core.
A Sea Of Magma
The force of the collision forming the Moon make the Earth into a blob of hot magma turbulent. The condition of hell make the Earth resemble Venus for a while, the atmosphere is hazy and steamy. But when the planet cools, the lava into rock and liquid water begins to condense, forming the first oceans on Earth. Oldest Mineral found on Earth, called zircon, comes from this time and age of 4.4 billion years.
Continent First
In the process of the formation of the earth at this time, the Earth is completely enclosed by the plate tectonic giant of continental crust and oceans. But the tectonic plates of the first young Earth is much smaller. Protokontinen this is the volcanic rocks of recycling that has been merged back, or also buried and converted into metamorphic rocks. The belt metamorphic often contain a lot a deposit of gold, silver, copper and other precious metals. The crust of the earth new and growing quickly, with about 70 percent of the earth’s crust formed 3 billion years ago, according to the researchers. Chemical marker early in life also appears with the continent first, about 3.8 billion years ago.
Boring Billion
After the level of atmospheric oxygen jumped 2.4 billion years ago, not much has happened on Earth over one billion next year. The earth is so quiet that scientists refer to this time as the “boring billion”. The movement of tectonic plates also quiet at that time. Continent stuck in the time period-the boring billion. Many researchers think there is a relationship between the lack of tectonic activity and the boring billion.
Supercontinent
The earth has been covered by a giant continent, which is called the supercontinent, a few times in the past. The supercontinent most famous, Pangaea, is the birthplace of the dinosaurs. Continent first on Earth are drawn together into a supercontinent several times, the researchers think. The remnants of the belt of the ancient mountains help the researchers to unite the continent-continent into the patterns of their past, such as the puzzle pieces fit.
Start It Cools
Boring billion was passed when a supercontinent large torn 750 million years ago, triggering a cold so-called global Earth a Ball of Snow. This Model shows that the planet earth looks like a “snow ball” mushy which is almost entirely covered by glaciers. Volcanic eruptions and weathering of rocks that accompanied the outbreak of the super continents have been trapping carbon dioxide, cool the planet on a large scale. Geologists have found evidence of glaciers on every continent, even in a place that is located in the tropical latitudes.
Appear Life
The process of the formation of the earth further with regard to the level of atmospheric oxygen began to increase again roughly 650 million years ago, when animals first appeared. Hard sections first on animal appeared during the Cambrian Period 545 million years ago. While researchers are still different opinions about the cause of the explosion this life, many think of a combination of factors to encourage the leap from single cells to complex creatures.
For example, the continent that spreads sending waves of nutrients to the oceans and unlock new habitats. And the arms race evolutionary begins the moment animals fight to eating each other and protect themselves from predators.
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