New York, May 31 (IANS): Deep groundwater may still be active on Mars and be a source of surface flows in some equatorial areas of the "Red Planet", the researchers believe.
Researchers from Southern California (USC) University have established that the groundwater is likely to exist in a wider geographical area than the pole of Mars and argues that there is an active system, as deep as 750 meters, of which underground water comes to the surface through cracks in concrete craters are analyzed.
The characteristics of the reverse slope of Mars Linea, which, like the dried short streams of water that a & # 39; appear on the walls of some craters on Mars.
Scientists previously thought that these features have been associated with the flow of surface waters or near groundwater flow, said researcher Essam Heggy at the University of Southern California.
Scientists have found a similarity between the groundwater moving mechanisms in the Sahara on Mars.
"Groundwater is strong evidence in the past, the similarities between Mars and Earth – is to assume that they have a similar evolution, to some extent," said Heggy.
He noted that the deep source of underground water with & # 39 is the most convincing evidence of the similarity between the two planets – it is assumed, as might have had wet periods long enough to create an active groundwater system.
"Understanding the evolution of Mars is essential to understanding the long-term evolution of our own soil and groundwater with & # 39 is a key element in this process," said Heggy.
Heggy explained that fractures within some of craters Mars water sources allowed to rise to the surface as a result of pressure deep below. These sources have leaked to the surface, creating sharp and clear line on the & # 39; objects found on the walls of the crater.
They also give an explanation of how these features of water varies depending on the season on Mars.
The study shows that ground water can be deeper than previously thought, in places where these flows are observed on Mars.
For the study, forthcoming in the journal Nature Geoscience, the team used optical resolution image greeting and modeling for the study of the walls of large impact craters on Mars.