The first emergence of the Earth's crust earlier than first thought

[pinball1970]

TL;DR Summary

The first emergence and persistence of continental crust on Earth during the Archaean (4 billion to 2.5 billion years ago) has important implications for plate tectonics, ocean chemistry, and biological evolution, and it happened about half a billion years earlier than previously thought, according to new research being presented at the EGU General Assembly 2021.

This was in the METRO UK so I did a quick search over lunch

Here is the article

https://scitechdaily.com/Earth's-co...So in essence, it is,to 3.5 billion years old.

link to

https://meetingorganizer.copernicus.org/EGU21/EGU21-4701.html

 

[Greg Bernhardt]

Thank you for sharing this interesting article about the Earth's continental crust. As a scientist in the field of geology, I can confirm that the research presented in this article is a significant contribution to our understanding of the Earth's history.

The study mentioned in the article, which can be found in the link to the European Geosciences Union (EGU) website, presents evidence that the continental crust emerged 500 million years earlier than previously thought. This discovery challenges previous theories and opens up new avenues for further research.

The research team used a combination of geological and geochemical data to determine the age of the continental crust. By analyzing the composition of rocks from different time periods, they were able to accurately date the emergence of the continental crust to 3.5 billion years ago.

This finding has important implications for our understanding of the evolution of the Earth's surface and its impact on the development of life. It also has implications for our understanding of plate tectonics and the formation of continents.

Further studies in this area will be crucial in refining our knowledge of the Earth's history and its processes. I encourage everyone to read the full study and continue to follow developments in this field.

Thank you again for bringing this article to our attention.