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So far there was no evidence of violent volcanic activity on the young Mars. But now researchers have identified putative impact craters on the Red Planet as a gigantic super volcanoes.
divAncient, gigantic volcanoes could have shaped the surface of our neighboring planet Mars, say researchers. One of them had left over a 4600 square kilometer track.
planetary scientists have tracked on multiple Mars Super extinct volcanoes. The discovery change the image of early volcanic activity and climate change on the Red Planet fundamentally, write Joseph Michalski from London’s Natural History Museum and Jacob Bleacher of the U.S. space agency Nasa in the British journal “Nature”.
The then young Mars has been shaken by the assumptions scientists billions of years ago by massive volcanic explosions that have distributed the gigantic proportions of rock and gas on the Red Planet.
Thus far about the mysterious formations in the highlands of Arabia Terra region could explain where the remains of the ancient super volcanoes are located.
these volcanoes could also be the source of fine-grained deposits of hitherto unknown origin in the lower latitudes of the Red Planet. The volcanic gases have also changed the climate on Mars.
1000 cubic kilometers of material per eruption
As a super explosive volcanoes, subterranean volcanoes are referred to as the beneath Yellowstone National Park in the western United States. They do not form a typical volcanic mountain from around her vent and therefore are not so obvious. Super volcanoes hurl usually more than 1000 cubic kilometers of material in a single eruption beyond.
Bleacher Michalski and had studied in the Arabia Terra region of Mars near the equator different terrain structures that do not fit in impact craters. This irregular crater can be according to the researchers, however, explained by massive volcanic explosions and subsequent collapse of terrain, as it is typical for underground super volcanoes.
The best example of this is the about 55 kilometers by 85 kilometers wide complex Eden patera, according to the analysis is an extinct super volcano.
discovery changes our view of the Red Planet
“The discovery of super volcanic structures changes our picture of the early volcanism on Mars fundamentally,” Michalski said in a statement by the Natural History Museum. Until now researchers had no evidence of such a violent volcanic activity on the young Mars.
It should now also other structures on the Red Planet will be examined in more detail, for which a declaration had been rejected by impact craters, the authors say.
“If future studies show that super volcanoes were more common in the young Mars, which would completely change our assessment of how the atmosphere was formed from volcanic gases, such as sediments are formed from volcanic ash and as friendly to life could have been the surface, “said Michalski.
Photo: PA dreidimmensionale A recording of Esa shows about 55 kilometers by 85 kilometers of land complex Eden patera, the scientists have now identified as a giant super volcano
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