The age of the earth is about, and the age of the earth is about how many years

Earth age is the time it takes for the Earth to accumulate from the primordial solar nebula to form a planet to the present. The current best estimate of the Earth's age is 100 million years, and what is commonly referred to as the Earth's age is its astronomical age.

There are several different concepts regarding the age of the earth. The astronomical age of the Earth refers to the time when the Earth began to form, which is closely related to the hypothesis of the origin of the Earth. The geological age of the Earth refers to the time from the beginning of geological processes on the Earth.

It is estimated that hundreds of millions of years have passed since the formation of the primitive Earth and has evolved into a layered Earth, so the geological age of the Earth is less than its astronomical age. The oldest known rocks on Earth are 100 million years old, and the Earth's geological age must be greater than that. Geological age is the subject of geological research; What is commonly referred to as the age of the Earth refers to its astronomical age.

To measure the time that the earth has elapsed, it is necessary to find a scale with a constant rate and a very large range.

The rate of change at some of the scales found earlier was not constant in Earth's history.

It was only after the discovery of radioactive elements in 1896 that a physical process with a constant rate of change was used as a scale to determine the age of rocks and the earth.

The ancient Chinese speculated that since the opening of the land to 481 B.C., where 3,267,000 years.

In the 17th century, Bishop Usher of England calculated from the Bible that God created the earth in 4004 B.C.

The first attempt to use the scientific method of earth's age was the British physicist Halley.

He suggested that studying the origin of ocean salinity could provide a basis for addressing the age of the Earth.

In 1854, the great German scientist Helmholtz, based on his estimation of the amount of the sun, believed that the age of the earth was no more than 25 million years.

In 1862, Thomson, a famous British physicist, said that it would take 20 million to 40 million years for the earth to cool from its early red-hot state to its current state.

These numbers are much smaller than the actual age of the Earth, but they are useful as an early attempt.

In 1953, geochemist Claire Peterson used isotope methods to determine the age of the Earth for the first time about 100 million years.

In the 20th century, scientists invented isotope geometry, which is the best way to determine the age of the earth and is the standard clock for calculating the history of the earth.

How old is the earth? Who knows, my personal opinion is that the earth was called the earth when it had its own stable liquid water bodies, and the age of the earth was about 4.5 billion years. Why?

Because, our sun and solar system have been born for about 5 billion years, and at the beginning of the birth of the sun and solar system, most of the material in the last cycle of space in the solar system will be cleared by the newly born sun, and there will be no natural formation and existence of planetary celestial bodies in the new solar system space.

With the continuous natural combustion of nuclear fusion in this cycle, it can emit light and heat and dust particles for the space of the solar system, giving birth to the birth and growth of all things in the solar system, and a huge amount of dust particles flow materials orbit around the magnetic coil orbits of different intervals of the solar magnetic field, and gradually realize the accumulation process of dust particle flow materials, the solar system will have the formation of budding planetary bodies in the space, and the initial solar system will develop and change for about 500 million years. The diameter of the accumulated dust flow material of the budding asteroid orbiting around the orbit of the third magnetic coil of the sun's magnetic field can reach 800 kilometers or more, and only then will it appear in a circular state, only then will there be the natural formation of the atmosphere, only then will there be the emergence of stable liquid water, and only then will there be the continuous birth of active life matter, and at this time, this asteroid can be called the earth.

In other words, before the formation of the above-mentioned natural conditions, it is not called the Earth, but an asteroid that is growing. It is precisely because the solar system has developed over 500 million years that the natural environment on Earth will sprout and form, which is the dividing line between asteroids and the Earth.

Therefore, the earth is called the earth when it has its own stable liquid water bodies (oceans) that form naturally, and the age of the earth is about 4.5 billion years. I wonder if this is accurate?

Question 1: How old is the earth and how long has it existed It is understood that modern geology and geophysics generally believe that the age of the earth is about 100 million years (109 years, 1%). Age is measured by radiometric dating of meteorites.

This is consistent with the results of the oldest stones and moon rocks on Earth. In addition, there are also measurements that use radioactive elements in the earth and the isotopes it metamorphoses, and the results are roughly the same.

The time when the Earth accumulated from the primordial solar nebula to form a planet. The age of the Earth is about 4.6 billion years. Regarding the concept of the same earth, the astronomical age of the earth refers to the time when the earth began to form. What is commonly referred to as the age of the Earth refers to its astronomical age.

Question 2: How many years is the age of the Earth The age of the Earth is about 4.6 billion years.

Question 3: How old is the Earth so far, billions of years?

Question 4: How old is the earth It is understood that modern geology and geophysics generally believe that the age of the earth is about 100 million years (109 years). Age is measured by radiometric dating of meteorites.

This is consistent with the results of the oldest stones and moon rocks on Earth. In addition, there are also measurements that use radioactive elements in the earth and the isotopes it metamorphoses, and the results are roughly the same.

The time when the Earth accumulated from the primordial solar nebula to form a planet. The age of the Earth is about 4.6 billion years. Regarding the concept of the same earth, the astronomical age of the earth refers to the time when the earth began to form. What is commonly referred to as the age of the Earth refers to its astronomical age.

Question 5: How old is the Earth to date, about 4.6 billion years, based on radioactive dating of the oldest rocks on Earth.