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Quartz-pebble metaconglomerate (Jack Hills Quartzite), the rock type that contains Earth's oldest dated mineral grains (detrital zircon) Detrital zircons with ages greater than 4 billion years old have been found in these rocks, and a 4,404 ± 8 million year old zircon was found at Erawandoo Hill; [4] this is the oldest dated material originating on Earth; the date is in the Cryptic era of the ...
Hadean zircon is the oldest-surviving crustal material from the Earth's earliest geological time period, the Hadean eon, about 4 billion years ago. Zircon is a mineral that is commonly used for radiometric dating because it is highly resistant to chemical changes and appears in the form of small crystals or grains in most igneous and metamorphic host rocks.
The oldest material of terrestrial origin that has been dated is a zircon mineral of 4.404 ±0.008 Ga enclosed in a metamorphosed sandstone conglomerate in the Jack Hills of the Narryer Gneiss terrane of Western Australia. [8] The 4.404 ±0.008 Ga zircon is a slight outlier, with the oldest consistently dated zircon falling closer to 4.35 Ga ...
The oldest material of terrestrial origin was a zircon found in the Jack Hills formation dated to 4.4 billion years ago. “(Zircon) is a unique mineral. It is highly resistant and doesn’t alter ...
The oldest dated zircon crystals, enclosed in a metamorphosed sandstone conglomerate in the Jack Hills of the Narryer Gneiss terrane of Western Australia, date to 4.404 ± 0.008 Ga. [19] This zircon is a slight outlier, with the oldest consistently dated zircon falling closer to 4.35 Ga [ 19 ] —around 200 million years after the hypothesized ...
Zircon grains in the Jack Hills, Narryer terrane have been dated at ~4.27 Ga, with one detrital zircon dated as old as 4.4 Ga. [1] The Murchison Province of the craton contains the Yarrabubba impact structure, at over 2 billion years old it is the oldest dated meteorite impact crater. [2]
Importantly, it contains the oldest known samples of the Earth's crust: samples of zircon from the Jack Hills portion of the Narryer Gneiss have been radiometrically dated at 4.4 billion years old, although the majority of zircon crystals are about 3.6-3.8 billion years old.
The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. [ 6 ] [ 9 ] [ 10 ] Calcium–aluminium-rich inclusions —the oldest known solid constituents within meteorites that are formed within the Solar System —are 4.567 billion years old, [ 11 ] [ 12 ...