archaean

Relating to the earliest geological eon of Earth's history, spanning from about 4 billion to 2.5 billion years ago.

• 🌐يُطلق على أقدم الدهور الجيولوجية في تاريخ الأرض، ويمتد من نحو 4 مليارات سنة إلى نحو 2.5 مليار سنة مضت، وفيه ظهرت أقدم الصخور وأبسط أشكال الحياة.

1. Relating to the earliest geological eon C2 formal scientific

   Of or relating to the Archaean Eon, the earliest part of the Precambrian, spanning from about 4.0 to 2.5 billion years ago, characterized by the formation of the Earth's first solid crust and the emergence of primitive life.

   • The Archaean rocks in this region are among the oldest on Earth.
   • Geologists study Archaean formations to understand early planetary history.
   • Fossil evidence from the Archaean eon is extremely rare.

   🌐متعلق بالدهر الأركي

   المرادفات: archaeozoic

• more archaean comparative form
• most archaean superlative form