An international team of scientists has discovered something important The relationship between Earth’s early atmosphere and the chemistry of the deep mantleIt is one of the layers that make up the Earth itself. The study conducted by researchers fromUniversity of Portsmouth Based onUniversity of Montpellier, Sheds new light onThe evolution of life on our planet And to increase oxygen in the atmosphere. The team studied magma that formed at ancient subduction zones where parts of Earth’s crust sink into the mantle, starting at a pivotal moment in Earth’s history: The great oxidation event (go). This event, which is estimated to have occurred between 2.1 and 2.4 billion years ago, was a period of time when oxygen levels in the Earth’s atmosphere rose rapidly and transformed life and environments on Earth. However, little research has been done on how these atmospheric changes leave their mark on the Earth’s mantle. The new study published in the journal “Natural Earth Science.”, He studied the role of plate tectonics – the process by which our planet’s outer crust moves and reshapes its surface – in the circulation and exchange of elements between the atmosphere, Earth’s surface and the deep mantle. By studying magma from before and after GOE, the team discovered the presence The tendency for a greater presence of oxidized magma. This was the result of the deep upwelling of oxidised sediments from the mountains – sediments formed by weathering and erosion – which were then recycled into the mantle via subduction processes. This discovery means that… Oxygen “breaths” may have altered the coat Contribute to the increased oxidation of calcareous-alkali magma, change the composition of the continental crust, and lead to the formation of mineral deposits on Earth.
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