ORIGIN OF EARTH-THE DEVELOPMENT OF PLANET EARTH

Till date Physicists have collected the information and sources that are related to the origin of the universe and it is found that the universe was formed “13.8 billion of years ago”.  The earth developed around “4.54 billion of years ago” which is one-third of the age of the universe. It is observed that the earth originated mainly from the “accretion from the solar nebula”. The formulation of the earth is developed by some steps which are held chronologically. “Volcanic outgassing” is one of the main reasons for the development of a “primordial atmosphere” and the ocean.  

What is the development of planet earth and life?

The development of the earth is around “4.54 billion of years ago”. Continuous change in geological factors and biological evolution has played a significant role in the development of the earth in the universe. It is observed that the acceleration of the solar nebula is the main reason for the development of Earth, which is one-third of the age of the universe. The “Primordial atmosphere” of the earth is developed by “volcanic outgassing”. After the development of the atmosphere, the ocean is developed on the earth. There is no oxygen found in the early atmosphere of the earth. 

At the very beginning, Earth was molten of the frequent particles with other substances that lead to extreme volcanism. In the earliest stage of Earth, there is a huge impact of a collision with the “Theia”. From Theia, it is observed that the moon is formed. A very hot molten substance of earth in the early stage became cold over time. The process of cooling finds the development of solid crust and that allows liquid water on the surface. The Hadean aeon represented the time that is a fossil record of life. At the beginning of life on the earth, Arches and protozoa evolved, which is the earliest evolution of the earth. 

The structures of the planet earth

The development of the planet is related to the structure of the earth, which is developed at the time of origin. The earth is divided into four main layers that start from the inner core centre of the planet and it ends with the outer layer. The structure is composed of the “crust”, “the mantle”, “outer portion core” and “the inner core”. Each layer has its unique composition of chemical and physical states that provide a huge impact on the life of Earth’s surface. 

The inner region of Earth is a solid spherical part that is composed of iron and nickel metals and it is about a radius of 759 miles. The temperature in this area is very high , 9800 degrees F.  Outside the inner core, there is a layer of outer core. This layer is distributed about 1400 miles and it is composed of iron and nickel fluids. The layer of the mantle is present between the crust and outer core of Earth’s layer. This layer is made up of a “viscous amalgamated mixture of the dissolved molten rock” that has a distribution of 1800 miles. The Earth’s crust is the outermost layer, which is deep about 19 miles on average inland. The crust becomes thinner at the bottom of the ocean. At this stage, it “extends about 3 miles from the sea fold to the top of the mantle”. 

The geological time scale of the origin of the earth

The origin and the development of the earth can be understood chronologically according to the geological time scale. This time scale is observed by the intervals of stratigraphic analysis. A five geographical time scale has a significant role in understanding the origin of earth in the universe. “Haden”, “Archean”, “Precambrian”, “paleoprotogenic”, “proterozoic” and “phanerozoic” are the five-time scale that chronologically described the development of planet Earth. The first time scale explains the entire time of Earth’s formation, second and third timeline describe the most recent eon and the fourth timeline explain the most recent period and epoch of Earth’s origin. 

The steps of the formation of the planet earth

There are a few steps for the evolution of Earth that are developed by the accretion process. This process consists of a few steps these includes

• Step 1: Accretion of cm sized in the particles
• Step 2: induction of collision of physical on the scale of km
• Step 3: gravitational accretion on the scale ranges from 10 to 100 KM
• Step 4:  evolution of Walton protoplanet from the heat of accretion
•  The differentiation of earth in the universe
• And the final step is the development of the analytical core and the development of oxygen silicon crust

Conclusion

It can be concluded that the origin and the evolution of the earth is formulated chronologically. “Accretion from the solar nebula” is the main source of the development of the earth. At the very beginning, the earth was very hot and molten. Earth was molten of the frequent particles with other substances that lead to extreme volcanism. It is understood that a very hot molten substance of earth in the early stage became cold over time. The process of cooling finds the development of solid crust and that allows liquid water on the surface. The chronological steps related to the earth’s origin play a significant role in the evolution of the earth.