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Depositional environment influences many aspects of sandstone diagenesis. The flow chart below shows the interrelationship of depositional environment with the many factors controlling sandstone diagenesis.

Depositional environment influences many aspects of sandstone diagenesis. The flow chart in [[:file:predicting-reservoir-system-quality-and-performance_fig9-51.png|Figure 1]] shows the interrelationship of depositional environment with the many factors controlling sandstone diagenesis.

[[file:predicting-reservoir-system-quality-and-performance_fig9-51.png|thumb|{{figure number|9-51}}After .<ref name=ch09r60>Stonecipher, S., A., Winn, R., D. Jr., Bishop, M., G., 1984, Diagenesis of the Frontier Formation, Moxa Arch: a function of sandstone geometry, texture and composition, and fluid flux, in McDonald, D., A., Surdam, R., C., eds., Clastic Diagenesis: AAPG Memoir 37, p. 289–316.</ref>]]

[[file:predicting-reservoir-system-quality-and-performance_fig9-51.png|thumb|{{figure number|1}}After .<ref name=ch09r60>Stonecipher, S., A., Winn, R., D. Jr., Bishop, M., G., 1984, Diagenesis of the Frontier Formation, Moxa Arch: a function of sandstone geometry, texture and composition, and fluid flux, in McDonald, D., A., Surdam, R., C., eds., Clastic Diagenesis: AAPG Memoir 37, p. 289–316.</ref>]]

==Sediment texture and composition==

==Sediment texture and composition==

==Marine diagenesis==

==Marine diagenesis==

The precipitation of cements in quartzarenites and subarkoses deposited in a marine environment tends to follow a predictable pattern beginning with clay authigenesis associated with quartz and feldspar overgrowths, followed by carbonate precipitation. Clay minerals form first because they precipitate more easily than quartz and feldspar overgrowths, which require more ordered crystal growth. Carbonate cement stops the further diagenesis of aluminosilicate minerals.

The precipitation of cements in quartzarenites and subarkoses deposited in a marine environment tends to follow a predictable pattern beginning with clay authigenesis associated with quartz and feldspar overgrowths, followed by carbonate precipitation. Clay minerals form first because they precipitate more easily than quartz and feldspar overgrowths, which require more ordered crystal growth. Carbonate cement stops the further diagenesis of aluminosilicate minerals.

The diagram below summarizes typical diagenetic pathways for marine sediments.

The diagram in [[:file:predicting-reservoir-system-quality-and-performance_fig9-52.png|Figure 2]] summarizes typical diagenetic pathways for marine sediments.

 

[[file:predicting-reservoir-system-quality-and-performance_fig9-52.png|thumb|{{figure number|9-52}}. Copyright: Burley et al., 1985; courtesy Blackwell Scientific.]]

[[file:predicting-reservoir-system-quality-and-performance_fig9-53.png|thumb|{{figure number|3}}. Copyright: Burley et al., 1985; courtesy Blackwell Scientific.]]

Nonmarine pore-water chemistry falls into two climatic categories: (1) warm and wet or (2) hot and dry. The chemistry of pore waters formed in warm and wet conditions is usually acidic or anoxic with large concentrations of dissolved mineral species. The interaction of organic material with pore water is a critical factor with these waters. The depositional pore water of sediments deposited in hot and dry conditions is typically slightly alkaline and dilute.

Nonmarine pore-water chemistry falls into two climatic categories: (1) warm and wet or (2) hot and dry. The chemistry of pore waters formed in warm and wet conditions is usually acidic or anoxic with large concentrations of dissolved mineral species. The interaction of organic material with pore water is a critical factor with these waters. The depositional pore water of sediments deposited in hot and dry conditions is typically slightly alkaline and dilute.

The diagram below shows typical diagenetic pathways for warm and wet nonmarine sediments.

The diagram in [[:file:predicting-reservoir-system-quality-and-performance_fig9-53.png|Figure 3]] shows typical diagenetic pathways for warm and wet nonmarine sediments.

 

[[file:predicting-reservoir-system-quality-and-performance_fig9-53.png|thumb|{{figure number|9-53}}. Copyright: Burley et al., 1985; courtesy Blackwell Scientific.]]

==Cements==

==Cements==