Hadean zircons reveal crust recycling and continent formation more than 4 billion years ago

Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought.

King's Trough: How a shifting plate boundary and hot mantle material shaped an Atlantic mega-canyon

The King's Trough Complex is a several-hundred-kilometer-long, canyon-like system of trenches on the North Atlantic seafloor.