Which type of sedimentary rock is characterized by the presence of particles derived from other rocks?

Prepare for the Fundamentals of Geology Exam with flashcards and multiple choice questions. Each question includes hints and detailed explanations. Get ready to ace your geology test!

Clastic sedimentary rock is characterized by the presence of particles that are the result of the weathering and erosion of pre-existing rocks. These particles, known as clasts, are transported by wind, water, or ice and eventually settle in layers, solidifying over time to form rock. This type of sedimentary rock is often classified based on the size of the clasts it contains, such as gravel, sand, or silt-sized particles.

The formation of clastic sedimentary rocks is a fundamental geological process that reflects the physical and mechanical breakdown of rocks into smaller fragments. Over time, these fragments can accumulate in various environments, such as riverbeds, lakes, or deltas, leading to a diverse range of rock types including sandstone, shale, and conglomerate, all of which derive from previously existing rocks.

In contrast, other types of sedimentary rocks, such as organic sedimentary rocks, are formed from the accumulation of organic matter like plant material or shell fragments, while chemical sedimentary rocks result from the precipitation of minerals from solution, often in evaporative environments. Biolitic sedimentary rocks, which might feature biological processes, primarily involve the remains of organisms and do not fit the definition of being derived from other rocks. Thus,

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