Radiometric dating age of the earth dating a man going through a separation

Scientists have made several attempts to date the planet over the past 400 years.They've attempted to predict the age based on changing sea levels, the time it took for Earth or the sun to cool to present temperatures, and the salinity of the ocean.Some of the earliest forms of life have been found in Western Australia, as announced in a 2018 study; the researchers found tiny filaments in 3.4-billion-year-old rocks that could be fossils.Other studies suggest that life originated even earlier.There are multiple explanations for this uncomformity; in early 2019, one study suggested that a global ice age caused glaciers to grind into the rock, causing it to disintegrate.Plate tectonics then threw the crushed rock back into the interior of the Earth, removing the old evidence and turning it into new rock.

Earlier research had shown that isotopes of some radioactive elements decay into other elements at a predictable rate.

By examining the existing elements, scientists can calculate the initial quantity of a radioactive element, and thus how long it took for the elements to decay, allowing them to determine the age of the rock.

The oldest rocks on Earth found to date are the Acasta Gneiss in northwestern Canada near the Great Slave Lake, which are 4.03 billion years old.

But rocks older than 3.5 billion years can be found on all continents.

Greenland boasts the Isua supracrustal rocks (3.7 to 3.8 billion years old), while rocks in Swaziland are 3.4 billion to 3.5 billion years.

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