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

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

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 ...

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 ...

Our planet was born around 4.5 billion years ago. To understand this mind-bendingly long history, we need to study rocks and the minerals they are made of.

Part of the planet’s original crust has been unearthed in Quebec, researchers Jonathan O'Neil and Richard Carlson announce in a study published in Science. Formed 4.3 billion years ago, the ...

Ever been late because you misread a clock? Sometimes, the "clocks" geologists use to date events can also be misread.

So, it's more about understanding that process, and especially what it means for how Earth's crust first formed." Scientists believe Mars formed about 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.

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.