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Fragmentary sedimentary rock forms from the accumulation and compaction of fragmented materials, such as mineral grains, shells, and organic debris. These fragments are typically derived from the weathering and erosion of pre-existing rocks. Over time, layers of sediments are deposited in various environments, such as rivers, lakes, or oceans, where they are compacted and cemented together by minerals precipitating from water. This process results in the formation of rocks like sandstone, shale, or conglomerate, depending on the size and composition of the fragments.

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3mo ago

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