How can an igneous rock turn into a sedimentary rock? (1 point)
through heat, erosion and pressure
through cementation, pressure and erosion
through erosion, heat and pressure
through erosion, pressure and cementation
All answers are
D
C
A
I got all three wrong so lemme put the correct answers
1. Through erosion, pressure and cementation.
2. Heat and pressure.
3. Uplifting exposes rocks to erosion, while burial exposes rock to heat and pressure.
d
To understand how an igneous rock can turn into a sedimentary rock, it's important to know the processes involved in the formation of sedimentary rocks.
Sedimentary rocks are formed from the accumulation and consolidation of sediments. Sediments are fragments of rocks, minerals, organic matter, and other materials that have been weathered and eroded from pre-existing rocks. These sediments are typically transported and deposited by wind, water, or ice.
The transformation of an igneous rock into a sedimentary rock can occur through the following steps:
1. Erosion: The first step involves the weathering and erosion of the igneous rock. Through physical and chemical processes, such as wind, water, or ice, the igneous rock is broken down into smaller fragments or particles. These particles can range in size from tiny grains to larger boulders.
2. Transportation: Once the rock fragments are eroded, they are transported away from their original location by agents like water or wind. Water can transport sediments in the form of rivers, streams, or ocean currents, while wind can carry them over long distances.
3. Deposition: As the transported particles slow down or come to a rest, they settle out of the transporting medium (water or wind). This process is known as deposition. The sediments accumulate in layers, often in basin-like depressions such as lakes, rivers, or ocean basins.
4. Compaction: Over time, as more and more sediment is deposited on top, the weight of the overlying sediments increases. This weight compacts the underlying layers, squeezing them together and reducing the spaces between particles. Compaction usually occurs under the influence of gravity.
5. Cementation: The final step in the sedimentary rock formation is cementation. During compaction, minerals dissolved in groundwater, such as silica or calcium carbonate, may fill the open spaces between the sediment particles. These minerals act as cementing agents, binding the particles together to form a solid rock. This process helps to strengthen and solidify the sediments into a coherent rock mass.
Therefore, the correct option for how an igneous rock can turn into a sedimentary rock is through erosion, pressure, and cementation.