Watch True Detective. ways to watch HBO. HBO is home to the most talked about programs on television - from groundbreaking series, films, documentaries and sports to the biggest blockbuster movies available anywhere. And it's never been easier to watch HBO programs - when you want, where you want.
1.4 - Sedimentary Rocks. Sedimentary rocks are formed via the breakdown and redeposition of other materials, often older rocks. Sedimentary rocks are classified by their dominant particle size (sand, silt, or clay) and their mineral composition.lassic sedimentary rocks (i.e., sandstone or shale) are composed of minerals, grains and rock fragments derived from older rocks; while biogenic sedimentary rocks are made up of shells, their recrystallized remnants (i.e., limestone) or plant fragments (i.e., coal).
This article discusses how rocks are formed. There are also articles on physical rock formations, also known as strata, and the formal naming of geologic formations.The three main ways rocks are formed 1  : Sedimentary rocks are formed through the gradual accumulation of sediments: for example, sand on a beach or mud on a river bed. Sedimentary rocks are formed through the gradual accumulation of sediments: for example, sand on a beach or mud on a river bed. 2  As the sediments are buried they get compacted as more and more material is deposited on top. 3  Eventually the sediments will become so dense that they would essentially form a rock.