Australian crystals hint at fresh water, as well as land rising above Earth’s Hadean ocean.
continents
Sedimentary Basins Tell Zealandia’s Ancient Story
New interpretations and mapping of all New Zealand’s offshore sedimentary basins offer clues about the evolution of Earth’s eighth continent.
Radioactive Sediments May Have Built Earth’s Cratons
Weathering of the earliest continents could have set in motion the formation of cratons, the immutable roots of continents.
A Step Closer to Solving the Fermi Paradox
Finding evidence of complex life elsewhere in the Milky Way galaxy hinges on locating rocky planets with plate tectonics and a mixture of landmasses and oceans, new research suggests.
From First Continents to Fancy Countertops
A new study suggests melting gabbros may have helped form Earth’s first continents, riling a long-standing debate.
Pooling Data Could Help Anticipate Megafloods in Europe
Locally surprising floods aren’t so surprising in a continent-wide context.
Future Supercontinent Will Be Inhospitable for Mammals
Pangea returns in 250 million years, and it’s not looking good for us.
Continental Breakup Shot Pink Diamonds to Earth’s Surface
What was once the world’s most prolific pink diamond mine has always been an anomaly. New research suggests that the end of an ancient supercontinent helped rocket its precious gems to the surface.
Rift-to-Ridge: Mid-Atlantic Ridge Segments Imprinted During Rifting
A new seismic study shows that magmatism along the eastern North American rift margin was segmented, and that rift discontinuities influence formation of fracture zones along the Mid-Atlantic Ridge.
Uncovering Mantle Heterogeneities Beneath Drifting Continents
Computational models of the composition and volumes of magmas during continental rifting evolution provide clues on the heterogeneities of the deep melting mantle.
