GEOLOGY

Detailed explanation-1: -Sedimentary rocks tell perhaps the most comprehensive story of the Earth’s history, as they record characteristics of far-away mountain ranges, river systems that transported the sediments, and the final environment in which the sediments accumulated and lithified.

Detailed explanation-2: -Sedimentary rocks tell us about past environments at Earth’s surface. Because of this, they are the primary story-tellers of past climate, life, and major events at Earth’s surface. Each type of environment has particular processes that occur in it that cause a particular type of sediment to be deposited there.

Detailed explanation-3: -They are important for: Earth history. Sedimentary rocks contain features that allow us to interpret ancient depositional environments, including the evolution of organisms and the environments they lived in, how climate has changed throughout Earth history, where and when faults were active, etc.

Detailed explanation-4: -Rocks are laid down from oldest to youngest. Sedimentary rocks that are not horizontal have been deformed. Sedimentary rocks are very useful for deciphering the geological history of an area.