Nice and over the skies firmly focused on the ground on the drive from the bribery landing site talk complication we have been analyzing three really interesting help crops that we have cold bull born link hata if we look at the heart out.
We can see a distinct lead it's been killed in a row did this allows us to look at the cross section three laugh when we looked at the lead with a high resolution moss cam camera we found that was comprised of sand grains and small pebbles that it becomes cemented to omaha plan
He asked you can see a pebble that is three centimeters in diameter cents more than a ping pong ball to suggest that this letter is an ancient gravel deposits the surprising thing is that when we look at the pebbles closely we discover that many of the more quite well rounded
This is very different than anything get across that usually live to the martian surface the left rudder pedals are common telltale sign of rocks that being transported by water for example on a river is straight as water flows of river that if the flustered this
Right enough the pebbles are lifted up into the global rolled along the river bed and the compounded by the tickets to each other back and this causes them to become rounded through time so we think we might be seeing here on mars is an ancient they're the bad with the pavel that's representing old stream
Posits the size of the pebbles tells up of these rocks could not be transported by the wind so it seems clear the must've been transported by war to to have his pavel deposit get to be here for free look more broadly in calcutta we can see that there's a prominent feature georgia.
Hold on the hill town they're going to take a look at fans in the fallin explore how they form and then travel back to gala crater and explore the relationship between the fan and there are many side as well
To rule begin with they played into death valley we've outlined in white the boundaries of six aloof your fans that we fly into and see on line four facing us and to her feet.
The ones facing us are steeper and come out with the canyon note the fan shaped the lateral boundary spread like a band we used to call ourselves how we fly into the headwaters of one can and the sea or channel spills out of the canyon and sediment and water that comes rushing out travels to the left controls the ride the pausing as it does so shifting shifting she
If two sediment deposit in the river moving over depositing louvre funeral for now we're crossing to the other thing that was their feet an hour going settle down in the back at that to finance the one test
Wentworth the junction one hundred fetuses go crater were flying and tor and the curiosity landing site on the initial seat red lines to winning the boundary of the withdrew fan in the blue
Delineates of fossil shells in the foreground now you see the canyon that some eighteen kilometers long thirty meters deep six hundred meters wide that sentiment was a rodent and deposited into offensive deposit by
The series which hal's here we count about twenty four separate fossil channels that played a role in building the fan that were flying over the rising you see the effects that marks the position of the curiosity rover
This fan was built by the corrosion than of sentiment in the canyon wall that was brought out and spread across the crater floor on the found itself we can see evidence for multiple channels suggesting that the stream that direction change sir
Time when we look at the location of the curiosity landing site with respect to the illegals can we see that over the land it down stream of the fan the round the pebbles likely represent long distance transports down the beatles fan so this is really exciting news, he feinstein because the first time we sing gravel transported by water on the surface of mars