The Earth's atmosphere 300 million years ago was much dustier than it is today

According to experts, what remains is silicate minerals like clay and quartz, which are thought to have invaded the atmosphere in the form of particles - the dust particles that are 300 million years old.

The atmosphere of ancient Earth 300 million years ago was much dustier than it is today.

This is the conclusion of US geologists in the recently published research.

To conclude, the team led by researcher Mehrdad Sardar Abadi at the University of Oklahoma's Mewbourne School of Geology and Energy conducted the collection of ancient atmospheric dust in the region that was the remnant of a shallow marine ecosystems in present-day Iran.

Similar to other areas of the modern world such as the Bahamas, shallow marine ecosystems cannot exist unless they are in pristine waters far from the river's flow.

Today's atmosphere is less dust than 300 million years ago.

After studying these ecosystems, experts found that silicate particles they found were stored in the air rather than from a river.

The researchers identified and collected dust samples from carbonate rocks - a type of sedimentary rock composed primarily of carbonate minerals, and are now "preserved" in exposed rock in the northern mountains and Central Iran.

The carbonate rock samples then underwent a series of chemical treatments to extract ancient dust.

According to experts, what remains is silicate minerals like clay and quartz, which are thought to have invaded the atmosphere in the form of particles - the dust particles that are 300 million years old. This means that the Earth's atmosphere in ancient times contained more dust than it does today.

In the study, experts also conducted geochemical experiments to analyze iron content in ancient dust samples, thereby detecting ancient atmospheric dust containing a significant proportion of iron capable Highly induced chemical reaction.

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