Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs about how our continents formed and when plate tectonics began.

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 ...

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 ...

Groundbreaking discovery: ... Read the original article. Citation: ... Mantle heat may have boosted Earth's crust 3 billion years ago. Apr 24, 2024.

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.

According to SpaceRef, "Earth's outer shell consists of about 15 shifting blocks of crust," that have been moving over millions of years to form the continents and unique landforms that currently ...

Parts of Earth's Original Crust Exist Today in Canada. News. By Stephanie Pappas published 17 March 2017 When you purchase through links on our site, we may earn an affiliate commission.

Beneath the American Midwest, on the continent of North America, the underside of Earth's crust is dripping into the planetary interior. There, blobs of molten rock are coalescing in the upper ...

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

Groundbreaking discovery: How researchers found remnants of Earth's primordial crust near Perth. Our planet was born around 4.5 billion years ago.

A close-up of 2.7 billion-year-old granite from the Hudson Bay. These rocks are apparently the second generation of rocks on Earth: Their parent rock was around 4.3 billion years old.