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 first half a billion years or so of Earth's existence was not so hellish after all, according to research on desert rocks in outback Australia. Geologists Professor Bruce Watson of Rensselaer ...
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 ...
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 ...
) 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 ...
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