continental shelf tagged posts

Don’t forget Mars! Curiosity Finds Rocks that might point to a Continental Crust

A team from US, France, U.K. is reporting data sent back by Mars rover Curiosity suggests Mars may have once had a continental crust similar to Earth. They describe 20 rocks that had been probed by the rover, and why their findings suggest a different history for the planet than has been thought. Researchers believe they have found evidence that suggests that rather than a lack of magmatic planetary activity, which should have been evident in rock samples showing mostly basalt, rock samples are full of silica and have a rich composition.

The light-colored rock samples are from an area inside the Gale Crater (in the southern hemisphere near Mount Sharp) and have been dated back to approximately 3.6B years ago...

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