Tue Mar 25 06:34:48 UTC 2025: ## Oldest Meteorite Impact Crater Discovered in Australia
**Perth, Australia – March 25, 2025** – A team of geologists has announced the discovery of the oldest known meteorite impact crater on Earth, located in Western Australia’s Pilbara region. The crater, formed over 3.5 billion years ago, predates the previously oldest known crater by more than a billion years. This discovery, published in *Nature Communications*, provides significant support for a theory regarding the formation of Earth’s first continents.
The research team, including Tim Johnson, Chris Kirkland, and Jonas Kaempf, initially hypothesized that the energy required to create the Pilbara’s ancient continental rocks originated from meteorite impacts. Their previous research focused on the chemical composition of zircon crystals. However, to solidify their theory, they sought more visible evidence.
Their fieldwork, conducted in 2021 and 2024, led them to identify shatter cones—unique geological formations only created by meteorite impacts—within the Antarctic Creek Member rock layer. The age of these shatter cones, determined through laboratory analysis, confirms the crater’s remarkable age.
This discovery challenges existing theories on continental formation, suggesting a significant role for meteorite impacts in the early Earth’s geological history. The researchers believe that further study of similar ancient craters could revolutionize our understanding of early Earth processes and even the origins of life. The team’s work highlights the importance of combining geological analysis with fieldwork to uncover Earth’s deep past.
First Piper 