Since their formation billions of years ago, the oldest parts of the Earth's continental rocks have generated natural ...

In the many millennia since, it seems continental crust has retained that original chemical signature, less affected by the heavy bombardment of meteorites that changed the composition of Earth's ...

Early Earth's first crust composition discovery rewrites geological timeline. ScienceDaily. Retrieved July 25, 2025 from www.sciencedaily.com / releases / 2025 / 04 / 250402122139.htm.

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

But unlike modern oceanic crust, which typically lingers for less than 200 million years before getting recycled into Earth’s interior by plate tectonics, the precursor crust survived for more ...

Unravelling Earth’s 4.5-billion-year history with rocks is tricky business. Case in point: the discovery of an ancient meteorite impact crater was recently reported in the remote Pilbara region of ...

FINDING a piece of original crust requires an epic journey to the frigid north, the scorching outback, or maybe even beyond the bounds of Earth itself. The first stop on our odyssey is Yellowknife ...

Chunks of Earth's outer crust that are 3.8 billion years old provide rock-solid evidence that the planet had active tectonic plates shortly after its birth.

A dense crystalline "rain" falling into Earth's mantle could explain how a mysterious seismic boundary forms beneath the crust, according to a study published today (Dec. 4) in the journal Nature.

A new study finds the original crust on Mars is more complex, ... and especially what it means for how Earth's crust first formed." ... Payré says she was mildly surprised at the discovery.

A dense crystalline "rain" falling into Earth's mantle could explain how a mysterious seismic boundary forms beneath the crust, according to a study published Wednesday in the journal Nature.