资讯

A Fragment of Earth’s Original Crust Still Exists—and It’s Buried in Canada
Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...
New Scientist15 天
These rocks are probably the last remains of Earth's early crust
Geologists have long debated whether a stony formation in Canada contains the world’s oldest rocks – new measurements make a ...
New study confirms 4.16 billion-year-old rocks in Canada as Earth’s oldest
The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or ...
Ancient Rocks in Canada Are Almost as Old as the Earth Itself
Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.
Oldest rocks on Earth found in Canada, are more than four billion years old
We are part of a research team that has confirmed the oldest known rocks on Earth are located in northern Québec.__ ...
Live Science14 天
Rocks in Canada may be oldest on Earth, dating back 4.16 billion years
Yet some regions are far enough from tectonic plate boundaries to contain rocks that have remained unchanged for billions of ...
Indy100 on MSN10 天
The Earth’s crust is disappearing beneath our feet – and most people don’t even ...
The Earth’s crust is disappearing right beneath our feet – and most people don’t even realise it. Now, if you’re a geologist, ...