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 ...

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 ...

Early Earth's first crust composition discovery rewrites geological timeline. ScienceDaily. Retrieved July 12, 2025 from www.sciencedaily.com / releases / 2025 / 04 / 250402122139.htm.

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 ...

Earth is about 4.5 billion years old, and as the eons passed, the crust of the young planet experienced turbulence. Asteroid collisions shattered some parts, which melted and recrystallized, while ...

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 ...

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 Wednesday in the journal Nature.

Moser published his discovery in Geology in 1997, ... Perhaps it was simply another pseudotachylite, or part of the Earth's original crust, the critics said.

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.