Acid rain - The culprit causes a great extinction

Scientists believe that volcanic eruption 250 million years ago caused acid rain to cause most organisms on Earth to become extinct.

A new study by US scientists has found that acid rain and ozone frequency phenomenon are the main causes of the extinction of 90% of marine species and 70% of terrestrial organisms about 250 million years.

Accordingly, at the end of the Permia period on Earth a massive extinction occurred so far that it was still considered the most horrific Great tragedy in Earth's history.

Some researchers argue that this large-scale extinction is caused by simultaneous eruptions of giant volcanoes in Siberia.

Siberian volcanoes have caused a great extinction on Earth.Photo: (voatiengviet.com)

The results of research from the Department of Geography Department, Carnegie Institute in the US show that these eruptions have caused tremendous destructive effects on Earth's climate.

This massive extinction caused most marine species and nearly two-thirds of terrestrial organisms to disappear, giving way to the rise of dinosaurs.

Fossils from this period show that these terrible eruptions in the volcanic range called the Siberian Traps in Russia have taken millions of years of ecological diversity to fully recover.

One of the main causes of this tragedy is the gas released from these volcanoes. Using advanced 3D simulation technology, scientists at the Massachusetts Institute of Technology recreated the volcanic impact of volcanoes on the Earth's atmosphere during this period.

Their work has shown that these volcanoes have released both CO2 and _SO2, causing heavy acid rain, decomposing nutrients in the soil, destroying plants and living organisms. Terrestrial vulnerability.

Siberian Traps volcano range is currently located along the Kotuy River in Russia.(Photo: volcanomadness.blogspot.com)

In addition, these volcanoes also release halogen compounds such as methy chloride (CH ₃ Cl) which cause the Earth's ozone layer to be severely punctured. Intermittent eruptions of this volcanic sequence eventually caused the ozone layer to be exhausted, while acid rain still poured relentlessly.

The team concluded that volcanic eruption caused serious erratic changes in pH and ultraviolet rays, combined with global warming caused by greenhouse gases, causing most creatures on Earth at the end of the Permia era mass extinction.

This research has just been published in the American journal Geology.