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The Jack Hills are a range of hills in Mid West Western Australia. They are best known as the source of the oldest material of terrestrial origin found to date: Hadean zircons that formed around 4.404 billion years ago.
Feb 23, 2014 · Researchers have confirmed a Jack Hills zircon crystal is the oldest rock fragment ever found on Earth — 4.4 billion years old.
Jun 4, 2024 · The Jack Hills in Western Australia hold the oldest surviving material from the Earth's crust. For 4.4 billion years, the primordial minerals remained relatively unchanged by heat and pressure.
Sep 24, 2018 · For the test, they collected zircons just older than 4 billion years—each about 100 microns across or roughly the width of a human hair—from the Jack Hills region of Western Australia.
Feb 24, 2014 · The new study, published in the journal Nature Geoscience, shows that zircon crystals from Western Australia’s Jack Hills region crystallized 4.4 billion years ago, strengthening the theory of a ‘cool early Earth,’ where temperatures were low enough for liquid water, oceans and a hydrosphere not long after the planet’s crust ...
Feb 24, 2014 · The Jack Hills rocks formed only about 160 million years after the formation of the solar system—which is surprisingly early. The zircon crystals analysed by the researchers in the Nature...
Jun 3, 2024 · The zircons in the study were found in 3.1 billion year-old orange sandstone from the Jack Hills formation, an outcrop of weathered rock in Western Australia.
