Oldest rocks on earth radiometric dating

Many accept radiometric dating methods as proof that the earth is millions of years old, in contrast to the biblical timeline.Mike Riddle exposes the unbiblical assumptions used in these calculations The primary dating method scientists use for determining the age of the earth is radioisotope dating.Ancient zircon crystals discovered in Western Australia have been positively dated to 4.374 billion years, confirming their place as the oldest piece of Earth ever found, according to a new study.The research reported in the journal , means Earth began forming a crust far sooner than previously thought, following the giant impact event which created the Earth-Moon system 4.5 billion years ago.

"We've proved that the chemical record inside these zircons is trustworthy," said John Valley, lead study author and a geochemist at the University of Wisconsin, Madison. Trace elements in the oldest zircons from Australia's Jack Hills range suggest they came from water-rich, granite-like rocks such as granodiorite or tonalite, other studies have reported.

That means Earth cooled quickly enough for surface water and continental-type rocks just 100 million years after the moon impact, the massive collision that formed the Earth-moon system. ] "The zircons show us the earliest Earth was more like the Earth we know today," Valley said.

"It wasn't an inhospitable place." Dubious history Zircons are one of the toughest minerals on the planet.

These layers often contained fossilized remains of unknown creatures, leading some to interpret a progression of organisms from layer to layer.

In the mid-18th century, the naturalist Mikhail Lomonosov suggested that Earth had been created separately from, and several hundred thousand years before, the rest of the universe. In 1779 the Comte du Buffon tried to obtain a value for the age of Earth using an experiment: He created a small globe that resembled Earth in composition and then measured its rate of cooling.

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