Most of the earth we see today is about 2 million years old.However, the formation of planets is much older.
The American geochemist Clair Patterson was commissioned to measure the lead in certain rocks and extraterrestrial meteorites on Earth. It was the 1940s, and this meant more than knowing the hidden lead content. His calculations will lead to the geological age of the earth. Patterson established a laboratory for the project, and as a result, the project reached 4.55 billion years, with a margin of error of only 70 million years.
Patterson found something else. He observed that the lead concentration in the sea surface was higher than that in the seabed, while the lead concentration in the snow was higher than that in the deeper ice layer.
The personnel responsible for all the extra lead comes from gasoline. His struggle with oil companies led to the passage of a landmark law in 1970, the Clean Air Act, which forced the withdrawal of leaded gasoline from the market.
A new measurement of the age of the earth
Not all earths are the same age. “It depends on what you are referring to is the earth,” said geologist Milan Pavich Geographical survey come from America. “The oldest sedimentary rocks are about 3.9 billion years old-they are located in Greenland-once land. That is very close to the time when the planets were formed. But the one you have in the garden is much cooler.
Pacih said: “Most of the land we can see today is about 2 million years old.” About 2 million years ago, two great changes occurred on the earth, which led to the formation of a new earth.
Where did the new earth come from
Global cooling and drying have made the desert bigger, and sandstorms spread the land around the world. At the same time, glaciers began to spread from the poles, crushing rocks, plants and other objects.
The land is still being produced, but the quantity is much smaller. Below the ground, rocks react to rainwater and groundwater, slowly eroding and breaking down into smaller minerals.
“The earth and its origin are older than the stars”
So the earth is not that old yet. However, there is another way to view it. If we look for its origin, we must add many years to our planet. As Pavich added, most of what remains after the “Big Bang” is basically dust, which then condenses to form stars and later planets. He concluded: “If you think about it, the earth and its origin are older than stars.”
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