In a nutshell NASA’s Curiosity rover discovered large deposits of siderite, a type of iron carbonate, in Gale Crater, ...

Mars has long been a subject of fascination for scientists and space enthusiasts, but one of its greatest mysteries has been the apparent absence of carbonate minerals on its surface. These minerals, ...

Sedimentary rocks close sedimentary rockSedimentary rocks are those which have been formed due to sediments that have built up over a long period of time, usually under water. are formed from ...

A treasure trove of clues from Curiosity reveals that ancient Mars once trapped massive amounts of CO2 in its crust, thanks to surprising concentrations of iron carbonate deep in Gale Crater. By ...

Limestone, made from calcium carbonate, takes millions of years to form. These sedimentary rocks are born from the decay and fossilization of marine organisms — think coral and clams.