Sedimentary petrology is a fascinating and important branch of geology that focuses on the study of sedimentary rocks and their formation processes. These rocks make up about 75% of the Earth’s surface and hold valuable clues about the Earth’s history and the changes it has gone through over millions of years. Sedimentary rocks are formed through the accumulation and consolidation of sediments, which are particles of various sizes and compositions that have been broken down and transported by natural forces such as water, wind, and ice.