Researchers from the University of Pennsylvania and California Tech University used
Planetologists used a specialgeological software for visualizing data collected by NASA's Mars Orbiter mission laser altimeter. Scientists have discovered more than 6,500 kilometers of river ridges forming 20 separate systems. The study showed that these ridges are eroded river deltas - remnants of an ancient Martian coastline.
Topographic observation data. Image: Benjamin Cardenas/Penn State
Rock elements such as system thicknessridges, heights, locations, and possible directions of sediment flow helped the team understand the evolution of the region and produce topographic maps of the area. Researchers believe that the area now known as the Aeolis Dorsa Ranges, which contains the densest collection of river ranges on the planet, was once an ocean.
The rocks in the ridges of the Aeolis contain an interestinginformation about what the ocean was like. He changed dynamically. The sea level was rising. Rocks were deposited along its basins at great speed. There have been many changes here.
Benjamin Cardenas, University of Pennsylvania researcher and lead author of the study
There has been a long debate in the scientific community aboutwhether there was an ocean on Mars in the northern hemisphere, the researchers note. They believe that the results of the observation provide strong evidence for its existence. The Aeolis Ridges could be a target for exploration for future missions to the Red Planet.
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Cover: An image from the top of the Greenheugh Pediment, taken by the Curiosity rover. Image: NASA/JPL-Caltech/MSSS