As there was a lack of evidence of rocks of this period the lunar geology is the primary source for extrapolating the Earth’s happenings of that time. This is relatively a long period covering 550 million years timeframe and lasted about 4.50 to 3.80 billion years ago. Impacts of comets on the Earth and the outgassing of rock are responsible for the formation of water though in the form of vapor. However, it was presumed that after 60 to 80 million years of its formation the Earth reached its stage of completion with 99% of its present mass, a moon, and a rich core of nickel and iron. The Cryptic period ends with the completion of the Earth. Apart from this massive collision of the Earth with the Theia, there was other evidence too of the crash of other planets. This finally gave birth to the moon, and this process of the formation of the moon was thought to take about 10-15 million years. From this impact the Earth gained a excellent percent of its mass, say about 10%. It is also believed that the Earth suffered from a collision with a considerable planetesimal, often known as Theia and resembled the size of Mars. This might have raised the Earth’s temperature by some 1000 C. This phenomenon is called as an iron catastrophe, and this had a partial contribution to the formation of the iron-rich core of the Earth.Īlso, gravitational potential energies were released due to the falling of heavier elements to the Earth’s core. Iron and similar heavier elements began to sink towards the earth’s center as the temperature started to increase and it began to cross iron’s melting point, which is about 1500 ☌. Meteorite impacts, gravitational compression, and the radioactive decay of potassium, thorium, and uranium generated heat. How was the Earth during the Cryptic period of Hadean Eon?Īs a result of its violation of formation, the earth was initially molten. High temperatures and enormous pressures were responsible for the formation of basalt, and the planetesimals exist at their cores very early. The meteorites of the oldest basaltic period support this theory that it took really less time to form the Earth and the solar system. Though no accurate or real knowledge was found to measure the time of formation of the Earth as per computer models the planet formation process was rapid, and it might take a couple of million years to complete the process. Due to gravitational force matter aggregated into clumps and they started grew in size when they attracted more materials. ![]() It is highly presumed that about 4.56 billion years ago the solar nebula gave birth to the Earth. How the Earth was formed during this Cryptic period? The information and knowledge to describe this period are mainly based on the studies and calculations of meteorites and their physical models. Even so, it is also thought that the moon was formed during this cryptic period. It is named as ‘cryptic’ because the moon is also devoid of any preserved details of this time. This period is estimated to last from 4.56 to 4.50 billion years ago. Hadean Eon: Cryptic PeriodĪlso known as the ‘Hidden’ period, this Cryptic period is described as the earliest phase of the Earth. These details of the moon have been preserved which have lost on the present Earth. It was also although the moon was devoid of water and wind and suffered from lower volcanic activities. ![]() Hadean Eon can be best described through its division into formal four periods as:Īll these divisions were made based on the moon’s geology as there was no proof of survival of the Earth’s surface. The International Commission on Stratigraphy does not recognize officially this period as no real strata of this period were found existed. Hadean Eon is often regarded as the period when the Earth was formed. How was the Earth during the Cryptic period of Hadean Eon?.How the Earth was formed during this Cryptic period?.
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