What is gabbro dike and brown sandstone?

A gabbro dike is a type of igneous rock formation that occurs when magma intrudes into a crack or fissure in the Earth's crust and solidifies, resulting in a coarse-grained texture rich in dark minerals like pyroxene and plagioclase. Brown sandstone, on the other hand, is a sedimentary rock composed mainly of sand-sized particles, often cemented together by minerals, with its brown color typically derived from iron oxide or organic material. Together, these rocks represent different geological processes: gabbro dikes are associated with volcanic activity, while brown sandstone forms from the accumulation and lithification of sediments.