On Thursday, scientists said, huge amounts of carbon dioxide released from the volcanic eruptions in Siberia 250 million years ago may have turned the oceans acidic thereby causing global calamity which has destroyed creatures on land and sea.
This period was the Permian period.
Researchers studied rocks that were on the sea floor during the period and the rocks have recorded the changing ocean conditions. These rocks are currently in United Arab Emirates.
Rachel Wood, geoscientist from University of Edinburgh and one of the researchers said, “This is one of the few cases where we have been able to show that an ocean acidification event happened in deep time, this is significant because we believe our modern oceans are becoming similarly acidic. These findings may help us understand the threat posed to marine life by modern-day ocean acidification.”
Researchers say that ocean acidification was considered a reason for mass destruction but there was no appropriate evidence to support their answer, but with the new discovery it is confirmed.
Many theories were offered to explain the cause even the one that cleared dinosaur from the face of Earth that is asteroid impact 65 million years ago.
Siberian Traps are formed by the volcanic eruptions, this eruption is considered the largest volcanic eruption of the past billion years and this eruption lasted for million years between the periods Permian and Triassic.
Volacnic eruption has released tremendous amount of carbon dioxide in the atmosphere which had such awful consequences for creatures both on land and in water.
The oceans absorbing carbon dioxide has changed the chemical composition of water.
The entire extinction period lasted for 60,000 years.
Marine creatures like the horseshoe crab-like trilobites and the sea scorpions vanished. Global warming and dry climate on land had caused many reptiles go extinct.
The findings are published in journal Science.