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Rock strata, also known as geological strata or layers, are horizontal or nearly horizontal layers of rock found in the Earth's crust. These layers represent the sequential deposition of various types of sedimentary rock, minerals, or other geological materials over millions of years. The formation of rock strata is the result of geological processes such as sedimentation, erosion, and compaction. Each layer may contain different types of rock, fossils, or mineral deposits, and they provide valuable insights into the Earth's geological history. By studying the composition and sequence of rock strata, geologists can reconstruct the Earth's past environmental conditions, climate changes, and the evolution of life on our planet, helping us understand the Earth's deep history.
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