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The oldest rocks on Earth… one of them is 4 billion years old

Have you ever thought about how old the earth is? There is a lot of radiological evidence that the age of the earth is around 50 million years. Because the earth’s crust is constantly changing, it is difficult to find evidence of the earliest parts of the earth’s formation. However, there have been many discoveries of the formations. Earth rocks that are close to the history of planet Earth itself, so “The Seventh Day” reviews a group of these impressive rock discoveries that are billions of years old, according to the “Seventh Day” website.more ancient” As follows:

Jack Hills CZ Stone

It is the oldest geological material found on Earth Planet Earthdating back about 4.375 billion years, takes 6 million years to form, trace elements found in zircon indicate that it came from water-rich granite rocks such as granodiorite or tonalite.


Jack Hills CZ Stone

حجر Nuvvuagittuq Greenstone belt

In 2001, geologists discovered the oldest known rocks on Earth.Nuvvuagittuq Greenstone beltOn the coast of Hudson Bay in northern Quebec, geologists have dated the oldest fragments of shale rock to about 4.28 billion years ago using ancient volcanic deposits, which they call “pseudo-amphibolite.”

حجر Nuvvuagittuq Greenstone belt
حجر Nuvvuagittuq Greenstone belt

Alan Hills

It was found in Antarctica in 1984 and is believed to come from Mars. The meteorite first came to international attention in 1996, when a team of researchers at NASA’s Johnson Space Center in Houston announced they had spotted possible signs of life on Mars in the meteorite.

Alan Hills
Alan Hills

Gneiss of Acasta

before the discovery of the greenstone beltNuvvuagittuqWas Gneiss of Acasta The oldest rock formation on Earth, the oldest part of which dates back approximately 4.031 billion years, and due to the controversy over the methods used to determine the age of rocks Nuvvuagittuqstill many people consider Gneiss of Acasta The oldest intact crustal rock ever found.

Gneiss of Acasta
Gneiss of Acasta

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