Sentences with phrase «small scarps»
«The young age of the small scarps means that Mercury joins Earth as a tectonically active planet, with new faults likely forming today as Mercury's interior continues to cool and the planet contracts,» said lead author Tom Watters, Smithsonian senior scientist at the National Air and Space Museum in Washington, D.C.
http://spaceref.com/ Not exact matches
This raisin - like shrinkage occurred no more than 1 billion years ago, based on the age of pre-existing small craters that the scarps run through (Science, DOI: 10.1126 / science.1189590).
Over time, as wind blows sand against the small cliffs, or scarps, that bound the Yellowknife outcrop, the scarps erode back, revealing new rock that previously was not exposed to cosmic rays.
These low - altitude images revealed small fault scarps that are orders of magnitude smaller than the larger scarps.
These scarps are small enough that scientists believe they must be geologically young, which means Mercury is still contracting and that Earth is not the only tectonically active planet in our solar system, as previously thought.