Some of a dim sandstone in an area being explored by NASA’s Curiosity Mars corsair shows hardness and prone bedding structures evil of deposits that shaped as silt dunes, afterwards were cemented into rock.
This sandstone outcrop — partial of a geological covering that Curiosity’s scholarship group calls a Stimson section — has a structure called crossbedding on a vast scale that a group has interpreted as deposits of silt dunes shaped by wind. Similar-looking petrified silt dunes are common in a U.S. Southwest. Geometry and course of a crossbedding give information about a directions of a winds that constructed a dunes.
The Stimson section overlies a covering of mudstone that was deposited in a lake environment. Curiosity has been examining constantly aloft and younger layers of Mount Sharp, starting with a mudstone during a mountain’s base, for justification about changes in a area’s ancient environment.
The dozens of particular Mastcam images total into this scenery were taken on Aug. 27, 2015. Curiosity has driven about 103 yards (94 meters) in a successive dual weeks, generally southward. Outcrops of a Stimson section sandstone are still permitted to a rover, and researchers devise to use a corsair to collect and investigate a drilled representation of Stimson section sandstone this month.
Curiosity has been operative on Mars given early Aug 2012. It reached a bottom of Mount Sharp final year after fruitfully questioning outcrops closer to a alighting site and afterwards movement to a mountain.
Malin Space Science Systems, San Diego, built and operates a rover’s Mastcam. NASA’s Jet Propulsion Laboratory, a multiplication of a California Institute of Technology, Pasadena, manages a Mars Science Laboratory Project for NASA’s Science Mission Directorate, Washington. JPL designed and built a project’s Curiosity rover.