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Browsing Tag

Archean

2 posts
SScience
The North Pole Dome crater: (A) simplified map of the East Pilbara Terrane (EPT, Western Australia), showing Paleoarchean granite domes (pink) and greenstone belts (greens and blues); the North Pole Dome (NPD) lies near the terrane center; (B) geological map of the NPD and the shatter-cone field (yellow star); (C) A quartz (Qtz)-carbonate vein cutting shatter-cone lineation. Image credit: Kirkland et al., doi: 10.1130/G54866.1.
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Australia’s North Pole Dome Crater is Earth’s Oldest and Only Known Archean Impact Structure

  • June 25, 2026
Zircon crystals and impact-altered minerals show that a massive asteroid slammed into what is now the Pilbara region…
SScience
Hadean Earth. Image credit: Alec Brenner.
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Earth’s Lithosphere was Already Segmented and Mobile 3.5 Billion Years Ago

  • March 22, 2026
By tracing magnetic signals preserved in 3.5-billion-year-old rocks in Western Australia, geoscientists have found the oldest direct evidence…
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