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Questions and Answers
What is diagenesis?
What is diagenesis?
- The hardening of loose sediment into sedimentary rock (correct)
- The process of forming metamorphic rock
- The erosion of sedimentary rock into loose sediment
- The transformation of igneous rock into sedimentary rock
What are the two types of neomorphism?
What are the two types of neomorphism?
- Intrusive and extrusive neomorphism
- Foliated and non-foliated neomorphism
- Igneous and metamorphic neomorphism
- Aggrading and degrading neomorphism (correct)
What are the diagenetic processes that reduce intergranular pore space in limestone?
What are the diagenetic processes that reduce intergranular pore space in limestone?
- Weathering and erosion
- Melting and solidification
- Subsidence and uplift
- Cementation and compaction (correct)
In what type of environment can modern carbonate cements be precipitated?
In what type of environment can modern carbonate cements be precipitated?
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What is isochemical diagenesis?
What is isochemical diagenesis?
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Study Notes
Diagenesis and Neomorphism
- Diagenesis is the process of converting sediment into sedimentary rock.
- There are two types of neomorphism:
- Intraclast neomorphism, which involves the replacement of minerals within a rock
- REPLACEMENT neomorphism, which involves the replacement of an entire mineral
Diagenetic Processes in Limestone
- Diagenetic processes that reduce intergranular pore space in limestone include:
- Compaction
- Cementation
- Recrystallization
Carbonate Cements
- Modern carbonate cements can be precipitated in marine and meteoric environments.
Isochemical Diagenesis
- Isochemical diagenesis is a type of diagenesis that occurs in a closed system, where there is no change in the chemical composition of the sediment.
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Description
Test your knowledge about the process of diagenesis and the formation of limestone from loose sediment. Explore concepts like isochemical and allochemical diagenesis, cementation, neomorphism, and carbonate cements.
