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Water was flowing on Mars 200,000 years ago – scientists

Published time: April 27, 2014 18:11
Photo Credit: NASA

Photo Credit: NASA

New research has suggested that water was flowing across the surface of Mars some 200,000 years ago. The nature of rock formations in a Mars crater suggests the sediment deposits and channels it contained were formed by ‘recent’ flowing water.

Swedish scientists from the Department of Earth Sciences at the University of Gothenburg identified “Very young …and well-preserved deposits of water bearing debris flows in a mid-latitude crater on Mars,” according to the study published in the journal Icarus.

It was previously estimated that liquid water flowed across the Red Planet during its last ‘ice-age’, some 400,000 years ago. However, the young age of the crater means the features signifying water must have appeared since.

The scientists drew comparisons between the geomorphological land formations and the Norwegian archipelago of Svalbard. The crater had features of areas on earth where debris flow had caused material to be deposited by fast-flowing water.

“Our fieldwork on Svalbard confirmed our interpretation of the Martian deposits,” stated Andreas Johnsson, a spokesperson for the research team.

“Our study crater on Mars is far too young to have been influenced by the conditions that were prevalent then. This suggests that the meltwater-related processes that formed these deposits have been exceptionally effective also in more recent times,” said Johnsson.

“If we find on Mars evidence for a second genesis, that changes everything,” Johnsson added.

A debris flow takes place when liquid water soaks through debris lying on an incline to the point that it becomes saturated and heavy, causing it to descend down the incline.

On earth, debris flow can result in material destruction and sometimes casualties, depending upon their severity.

When the flow stops, new landforms are made, including lobate deposits and paired levees. It is these that Johnsson has identified on the planet.

“Gullies are common on Mars, but the ones which have been studied previously are older, and the sediments where they have formed are associated with the most recent ice age. Our study crater on Mars is far too young to have been influenced by the conditions that were prevalent then,” Johnson said.

Comments (28)

 

Frank 11.05.2014 17:40

How many times must i tell you Mars is here we are from Mars.If you find anything but anything there that is not here you will make me a believer.
Who ever is going to Mars will die in a bad way.
May be in 50 years time ??

 

Blazkowicz Inc. 02.05.2014 15:24

Vera Gottlieb 28.04.2014 14:20

Yes, and then Martians messed up Mars and had to escape to Earth. Now Earth is being messed up and...where to now?

  


Back to Mars?

 

Dave Dobbs 28.04.2014 14:45

Just put up an interesting video myself on youtube regarding water on Mars along with what the zircon presence on Mars actually means from a Gaia (Lovelock) perspective. Which fundamentally is not just deep oceans but the presence of CO2 exhailing life for billions of years. In fact, by the zircon presence on Mars we can determine that Mars was a Great Grandfather planet that has had life for much longer than Earth. The vids called A Martian Think-Tank, but can't post link but you won't need that. It's a SubGenius TV film. Got some great things that could really open your eyes.

View all comments (28)
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