Study: Huge volcanic eruptions are responsible for changing the planet Venus

describe Venus It is a “fucking hell”, with a surface temperature of more than 464 degrees Celsius (850 degrees Fahrenheit, 737 degrees Kelvin), hot enough to melt lead and spacecraft.

A new study showed that volcanic eruptions Massive volcanoes over a long period of time may be responsible for changing the planet to what it is today.. The study says that perhaps the massive volcanoes that covered 80% of the surface of Venus with lava were the decisive factor that turned Venus from a wet and temperate world into a planet Stifling, sulfuric and infernal as it is today.

There is an overwhelming pressure on Venus of 90 atmospheres under dense clouds of carbon dioxide, which are dominated by corrosive sulfuric acid. The planet is about 25 million miles (40 million km) further from the Sun than Earth and, therefore, receives more heat.

However, there is growing evidence that Venus wasn’t always this way and could once have been a temperate world somewhat similar to Earth, possibly later, geologically speaking, than expected.

Michael Way of NASA’s Goddard Space Flight Center in Maryland led much of the research to develop this new view of Venus, and in the latest paper, Way and his team argue that Venus’s volcanic activity could ultimately be what pushed the planet to the brink. By sending huge amounts of carbon dioxide. And as we know, powerful greenhouse gases are rising in the atmosphere of Venus.

In the 1990s, NASA’s Magellan spacecraft mapped the surface of Venus, which is obscured by the planet’s dense atmosphere, and found that a large part of the surface was covered in volcanic basalt rocks.

These “great fiery provinces” are the result of the activity of tens of thousands, if not hundreds of thousands of years of supervolcanoes, which have erupted at some point in the past billion years.

In particular, many of these events took place in perhaps a million years, each covered hundreds of thousands of square miles or kilometers with lava, and would have given Venus’s atmosphere so much carbon dioxide that the climate was unable to cope. That, since any existing oceans would have boiled away, adding moisture to the atmosphere, and because water vapor is also a greenhouse gas, this accelerated global warming, and over time, the water would have been lost to space, but the carbon dioxide, And the cruel world, they remained standing.

“While we are not yet sure how many times the events that created these fields occurred, we should be able to narrow it down by studying Earth’s history,” Way said in a statement.

The frequency with which megavolcanic events, which form large igneous tracts (very large accumulations of igneous rocks) have occurred on Earth, indicates that many such events are likely to occur on Venus within a million years. These accidents could have affected Venus forever.

It is noteworthy that the so-called “giant volcanoes” have been associated with many mass extinction events on Earth over the past half a billion years. For example, some of the mass extinctions in the late Devonian period 370 million years ago are due to supervolcanoes in what is now Russia. and Siberia, as well as to a separate supervolcanic eruption in Australia.

The Triassic-Jurassic mass extinction is widely blamed on the formation of Earth’s largest fiery province, the Mid-Atlantic Magmatic Province, 200 million years ago.

Even the death of the dinosaurs 65 million years ago may have been caused by the double action of an asteroid strike and supervolcanoes in the Deccan Traps, a large fiery province in India. For unknown reasons, similar volcanic events on Venus were more widespread and incited a runaway greenhouse effect that altered the planet.

Meanwhile, on Earth, the carbon-silicate cycle that acts as the planet’s natural thermostat, exchanging carbon dioxide and other greenhouse gases between the mantle and atmosphere over millions of years, was able to prevent Earth from following the same trajectory as Venus.


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