Astronomers from France, Italy and the US have discovered evidence of the giant tsunami that occurred on Mars approximately three billion years ago as a result of the fall of a large asteroid into the ocean. In a paper published in the journal of the Journal of Geophysical Research, the evidence shows the grouping of certain contours. They think that the tsunami is a very likely factor, which has led to the creation of some of the unique observed formations on the planet.
Scientists have been exploring the probability of the ocean’s presence on Mars for several years, but have not yet been able to definitively prove its existence. Other astronomers have been searching for evidence of the giant tsunami on Mars, but they have failed to find an impact crater related to the impact of the asteroid on the ocean and the emergence of the tsunami. New research leads to the conclusion that they have finally succeeded.
Previous research has revealed on Mars‘ surface formations reminiscent of some „fingerprints“ that some researchers have attributed to sludge from slopes of active volcanoes or pressures from glaciers. But perhaps they were created by very large tsunami waves, as scientists are now claiming. And they also discovered the crater, which is perhaps the cause of the observed formation.
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A 120-km-long crater named Lomonosov, located in the northern part of the plateau, may be, according to scientists, a very good scar, left as a reminder of the asteroid that hit the northern part of the ocean. There were sea waves about 150 meters high, which spilled around the surrounding landscape at about 60 meters per second and left a huge number of deposits.
If an asteroid collides with Mars and falls just in the area of the ocean, the scientific team continues in their reflections, after immersing in the water, created a crater at the bottom of the ocean. Crater did not remain empty; It was immediately filled with water flowing from all sides and collapsing together.
Secondary tsunamis emerged following the first wave. As soon as the first tsunami subsided, the subsequent wave struck and these two events together, in the opinion of the scientists, produced distinctive footprints all around.
Astronomers also used computer modeling to confirm the formation of these units. They said they did not know any other reasonable explanation for creating the observed backs which, they believe, provide a reasonable amount of evidence not only for the tsunami itself but also for the presence of the ocean on the young Mars.
Recognizing the lobular debris of deposits in the Arabia Terra area along the proposed ancient coastal line of the former North Ocean has raised questions about the existence and stability of the ocean-sized water reservoir in the early geological history of Mars.
The potential incidence of tsunamis generated after the impact of the asteroid in the northern ocean area was investigated by comparing the geomorphological characteristics of Martian deposits with predicted well-proven terrestrial models (in relation to Mars) tsunami wave height, direction of propagation, height and distance achieved for the three- Levels.
Modeling shows several potential impact craters with a diameter of 30 to 50 kilometers as a predicted tsunami source. Within a complex topography on the bottom of the valley and plateau along the dichotomy boundary between the northern and southern hemispheres of the planet, astronomers have discovered deposits that support the notion that at that time there was a vast ocean in the northern hemisphere of Mars. The projected ocean on the surface of Mars covered almost half a billion northern hemisphere of the red planet about 3.8 billion years ago.
„The probability that the vast ocean once covered the northern plains of Mars is one of the most important but controversial theories of Mars research,“ research researchers Stephen Clifford and Francois Costard said. Although scientists have previously suggested tsunami on the surface of ancient Mars, this is the first study showing their association with a particular impact crater.
Another study in 2016, based on Mars‘ surface photographs taken by spacecraft in the planet’s orbit, assumed the impact of two asteroids, a few million years ago at 3.4 billion years ago. After the impact on the Martian Ocean, 120 meters high tsunamis flooded the sea coast and flooded a huge strip of land.