GEOLOGY

Detailed explanation-1: -Fragmental (or clastic) sediments are made up of particles of weathered rock, including rock fragments, residual mineral grains (especially quartz, which is both hard and chemically inert) and clay minerals. Examples include: conglomerate, sandstone, mudstone & shale.

Detailed explanation-2: -Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus, chunks, and smaller grains of rock broken off other rocks by physical weathering.

Detailed explanation-3: -The finer‐grained clastic sedimentary rocks are called shale, siltstone, and mudstone. Shale is a smooth, thinly layered rock that is made up of fine‐grained silt and clay particles. Shale is considered a fissile rock because it splits very naturally along its layers.

Detailed explanation-4: -Inorganic detrital rocks, on the other hand, are formed from broken up pieces of other rocks, not from living things. These rocks are often called clastic sedimentary rocks. One of the best-known clastic sedimentary rocks is sandstone.

Detailed explanation-5: -Clastic sedimentary rocks are grouped by the size of the sediment they contain. Conglomerate and breccia are made of individual stones that have been cemented together. In conglomerate, the stones are rounded. In breccia, the stones are angular.