Process involved in transforming an igneous rock into a sedimentary rock.
Here are the steps:
1. Weathering: This is the first step, where the igneous rock is exposed to the elements, such as wind, water, and temperature changes, causing it to break down physically and chemically.
2. Erosion: After weathering, the smaller rock fragments and mineral particles are transported by natural agents like wind, water, or ice.
3. Deposition: The eroded rock fragments and mineral particles eventually settle out and accumulate in a new location, such as a riverbed, lakebed, or ocean floor. This process is called deposition.
4. Sedimentation: Over time, more and more layers of sediments accumulate, increasing the pressure on the lower layers. This process of sediment accumulation is called sedimentation.
5. Compaction: As the pressure on the sediments increases, the spaces between the particles are reduced, causing them to pack together tightly. This process is known as compaction.
6. Cementation: During compaction, dissolved minerals in the groundwater precipitate and act as a glue, binding the sediment particles together. This process is called cementation.
7. Lithification: Compaction and cementation together transform the loose sediment into a solid sedimentary rock. This process is known as lithification.
In summary, the transformation of an igneous rock into a sedimentary rock involves weathering, erosion, deposition, sedimentation, compaction, cementation, and lithification.
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