In Earth’s early days, more than 4 billion years ago, the surface was a dangerous and unpredictable place. Violent volcanoes, crashing meteorites, and constant tectonic activity repeatedly resurfaced ...
The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years. The rare remnants that ...
The Nuvvuagittuq Greenstone Belt (NGB) – a complex geological sequence in northeastern Canada – harbors surviving fragments of Earth’s oldest crust, dating back to ~4.16 billion years old, according ...
An artistic reconstruction of Earth during the Hadean eon (~4.5 billion years ago). Intense volcanic activity, heat from accretion, and frequent impacts kept the young Earth in a molten state. This ...
) is a geologic eon of Earth history preceding the Archean. It began with the formation of the Earth about 4.6 billion years ago and ended, as defined by the International Commission on ...
The Hadean period, during which life likely originated on Earth, was extremely active in terms of volcanism. In a newly published paper, Frances Westall from the National Center for Scientific ...
Recent studies suggest Earth’s continents formed billions of years earlier than previously thought. A study published in Nature Communications reveals evidence of active tectonic processes during the ...
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