A new research has suggested that
Oxygen is likely to be 2.48 billion years old. An International team says that
banded ironstone core samples from the Pilbara rocks in Australia have aided in
dating the very first appearance of atmospheric Oxygen at 2.48 billion years
ago. This is quite big news in the scientific world, as scientists are still
very much confused about the real age of Oxygen. May be this research be able
to draw an ending line to this confusion.
Prof. Mark Barley, who led
the team, says their findings, published in the “Nature” Journal, rested on the
reliability of the rock samples they used as the evidence.
According to the Geologists,
the Great Oxidation Event, when Earth’s atmospheric oxygen formed, happened
between 2.48 and 2.32 billion years ago.
This was evidence for the
most primitive form of aerobic respiring life, aerobic respiring bacteria which
oxidize pyrite that released acid that dissolved rocks and soils on land,
including chromium, that was then carried to the oceans by the flow of water.
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