Review Questions
1. What processes must take place to transform rocks into sediment?
2. What processes normally take place in the transformation of sediments to sedimentary rock
3. What are the processes that lead to the formation of a metamorphic rock?
Answers to Review Questions
1. The rock must be exposed at surface. This means uplift and removal of overlying rocks and
sediments is required. Once exposed, chemical and/or physical weathering can reduce the rock to
smaller loose fragments (sediments). The sediments can be eroded and then transported by a
variety of mechanisms.
2. Sediments are buried beneath other sediments, where pressure compacts the sediments, forcing
grains closer together. Mineral cement forms around the grains, binding them to each other and
into solid rock.
3. Rock is buried deeply in the crust and exposed to very high temperatures and pressures. Under
those conditions, a new type of rock is formed when minerals undergo physical changes and
chemical reactions.
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