5 Cementation In the final process of sedimentary rock formation, some of the minerals in the sediment harden and form a kind of cement which sticks the grains of the rock together. This is a ...

I am a chemical sedimentologist: I study how and why chemical sediments form and lithify, with the goal of better understanding how chemical sedimentary rocks (e.g., carbonates, chert, iron formations ...

The formations have drawn comparisons to Martian blueberries, a type of small, spherical rock formation first discovered by ...

NASA's Perseverance rover has discovered a strange object, resembling a cluster of spider eggs, on Mars, sparking intrigue ...

NASA’s Perseverance rovermade an unexpected discovery on the outer rim of Mars’s Jezero Crater: a rock so unusual in ...

in the process closing an ocean named Tethys that had separated fragments of Pangea. This ocean is entirely gone today, although the sedimentary rocks that settled on its ocean floor and the ...

( If successfully implemented, our field protocol for preparation and optical microscopy of rock samples will help to ...