List the steps that would cause each transformation below.

A. Intrusive igneous rock 🡪 sedimentary rock:
B. Metamorphic rock 🡪 sediment:
C. Sediment 🡪 sedimentary rock:
D. Sedimentary rock 🡪 sediment:

1 answer

Sure! Here are the steps that lead to each transformation:

A. Intrusive igneous rock 🡪 sedimentary rock:

  1. Weathering: The intrusive igneous rock undergoes weathering, breaking down into smaller particles (sediments) due to physical and chemical processes.
  2. Erosion and Transport: The weathered materials are then eroded and transported by wind, water, or ice.
  3. Deposition: The sediments are deposited in layers, typically in bodies of water, where they accumulate over time.
  4. Compaction: The accumulated sediments are compacted under the weight of overlying materials.
  5. Cementation: Minerals precipitate from groundwater and fill the spaces between sediment particles, binding them together to form sedimentary rock.

B. Metamorphic rock 🡪 sediment:

  1. Weathering: The metamorphic rock is subjected to weathering, breaking it down into smaller particles (sediments).
  2. Erosion and Transport: The broken fragments are then eroded and transported by natural forces like water, wind, or ice.
  3. Deposition: The sediments settle and accumulate in various environments (riverbeds, lakes, oceans).

C. Sediment 🡪 sedimentary rock:

  1. Burial: Accumulated sediments are buried under additional layers of sediments.
  2. Compaction: The weight of the overlying materials compresses the sediments, reducing their volume and expelling water.
  3. Cementation: Dissolved minerals precipitate and fill the spaces between sediment particles, binding them together to form sedimentary rock.

D. Sedimentary rock 🡪 sediment:

  1. Weathering: The sedimentary rock is exposed to weathering processes, breaking it down into smaller pieces (sediments).
  2. Erosion and Transport: The detritus from weathered sedimentary rock is then eroded and transported by natural forces like water, wind, or ice.
  3. Deposition: The eroded material is deposited in various environments, accumulating as layers of sediment.

These processes illustrate the rock cycle and how different rock types can transform through natural forces over time.