I saw the water streaming over the road towards the ditch, and it reminded me of Uncle Tom's Cabin at Milltown, when Eliza took her baby and ran across the Mississippi on the ice blocks, pursued by the bloodhounds.
Sedimentary Rocks. Picture Gallery of the Most Common Rock Types. Breccia is a clastic sedimentary rock that is composed of large (over two millimeter diameter) angular fragments. The spaces between the large fragments can be filled with a matrix of smaller particles or a mineral cement which binds the rock together.hemical sedimentary rocks, such as rock salt, iron ore, chert, flint, some dolomites, and some limestones, form when dissolved materials precipitate from solution. Organic sedimentary rocks such as coal, some dolomites, and some limestones, form from the accumulation of plant or animal debris.
Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in three main waysâby the deposition of the weathered remains of other rocks (known as clastic sedimentary rocks); by the deposition of the results of biogenic activity; and by precipitation from solution.ther examples include stromatolites, and the flint nodules found in chalk (which is itself a biogenic sedimentary rock, a form of limestone). Precipitate sedimentary rocks. Precipitate sedimentary rocks form when mineral solutions, such as sea water, evaporate.