Mars

Mars: Floods of crater lakes on Mars have created deep valleys, new research reveals

cosmos science Technology

Today there is no sign of liquid water on the surface of Mars. It is a dry but icy planet, due to which there is nothing fluid here. Despite this, such landforms are visible in many areas on the surface here. It seems to be formed only by running water. This is the reason why scientists believe that there was once a lot of water on Mars. Such traces are visible on Mars with a telescope from Earth itself. Since then, it is believed that rivers must have made these marks on Mars. But the new study has said that the flood made these marks. It used to come in much more numbers than expected on Mars.

Floods used to come on Mars, but changes were slow

In the research, it has been told that where there used to be huge but prolonged floods on Mars. It deposited a tremendous amount of depression on the surface of Mars and changed the landform there. But on the contrary, all this happens on Earth in a brief time interval, i.e. in a few weeks.

The floods used to come from the crater lake
On Mars, this flood used to come from the filling of the lake made in the craters. Researchers say it was more common than we used to think. University of Texas geologist Tim Gauge of Austin says that if we consider the activities of sediments on the land of ancient Mars. Then the flood by breaking the lake there was an essential process on the whole planet.

Mars

Shocking result!

This is a shocking result because we had not even thought about it before. The number of craters on Mars is much more than on Earth. This is because many craters’ erosion and tectonic activities on Earth have changed the crater a lot. This is why even though the surface areas of both the planets are similar, they look pretty different.

Satellite photos confirm
The existence of such ancient craters on Mars means that billions of years ago when this red planet was wet. It was common to have crater lakes. We know that when these crater lakes were filled, the walls of their craters would have broken down, causing flooding of the surrounding terrain. Based on satellite images, previous studies have revealed some such ruptured craters and the formation of deep valleys nearby from their floods.

Study of more than 250 crater lakes
This time Gauge and his team took a different approach. Instead of studying individual craters and the area around them, they included 262 broken crater lakes in their research and tried to learn how the surface of Mars is shaped globally.

Types of valleys

For many years, we have received pictures of the surface of Mars in great detail from the spacecraft that have been circling Mars so far. With this, researchers could get maps of the river valleys of this planet. With the help of these, the researchers divided the valleys into two categories formed by breaking the craters. The craters developed away and studied their volume and size.

Researchers found that although the valleys formed by breaking the craters are more minor, their depth is much higher than the other valleys. These valleys have been formed up to a depth of 170 meters. While the other valleys have formed gradually and are up to 77 meters deep. Nevertheless, 24 percent of the water of the rivers of Mangal used to flow in the river made of crater lakes. This has had an impact on many parts of Mars.