The rocks are a missing link from a billion-year old supercontinent.
The research could help scientists understand natural disasters like landslides.
The park is one of the only places in the world where the public can search for real diamonds in their original volcanic source.
Thawing permafrost is releasing more carbon dioxide than previously thought.
The formations were "sculpted by 320 million years of ice, wind, and the movement of entire continents," the National Trust said.
These rocks formed at the bottom of ancient lake beds between three and four billion years ago, when the Martian surface was abundant in water and its climate was warmer.
There's a lot more water down there than scientists had ever dreamed of.
"It is impossible to know precisely what they were used for," said one researcher.
Ukrainian President Poroshenko has said he is open to a prisoner swap for the pilot.
As many as 500 protesters gathered in central Kiev to support the captured pilot.
The announcement follows a lawsuit filed by the widow of Antonio Zambrano-Montes after three police officers in Pasco, Washington, fatally shot him on February 10.
Results of official investigation showed Antonio Zambrano-Montes was holding a rock when he was killed.
Newly released police files indicate that Antonio Zambrano-Montes was not in his right mind when police fatally shot him in February.
Thousands of people are staging protest marches, vigils and other demonstrations in the St. Louis area this weekend