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Paleoenvironmental analysis (view source)
Revision as of 21:08, 5 August 2014
, 21:08, 5 August 2014→Distribution of palynomorph types
In [[:file:applied-paleontology_fig17-18.png|Figure 2]], species inhabiting high-oxygen environments (e.g., shelf depth) are small, prolate forms; those in low-oxygen environments (e.g., basin depths) are large, lanceolate forms.
In [[:file:applied-paleontology_fig17-18.png|Figure 2]], species inhabiting high-oxygen environments (e.g., shelf depth) are small, prolate forms; those in low-oxygen environments (e.g., basin depths) are large, lanceolate forms.
==Distribution of palynomorph types==
==Distribution of palynomorph types=='
[[file:applied-paleontology_fig17-19.png|left|300px|thumb|{{figure number|3}}Nonmarine (fluvial and marsh), lagoon, barrier, and marine environments and the interpreted sediment transport direction (large arrow) during one time interval. Copyright: Whittaker et al.;<ref name=ch17r95 /> courtesy Geological Society.]]
Whittaker et al.<ref name=ch17r95>Whittaker, M. F., Giles, M. R., Cannon, S. J. C., 1992, Palynological review of the Brent Group, UK sector, North Sea, in Morton, A., C., Haszeldine, R., S., Giles, M., R., Brown, S., eds., Geology of the Brent Group: Geological Society Special Publication 61, p. 169–202.</ref> provide an industrial example in the [[Brent Group]] (Jurassic), [[North Sea]], in which the distribution of palynomorph types is used to infer the depositional environments and extent of delta [[Depocenter#Sediment_supply_rate_and_facies_patterns|progradation]] during brief intervals of the Jurassic. [[:file:applied-paleontology_fig17-19.png|Figure 3]] illustrates the nonmarine (fluvial and marsh), lagoon, barrier, and marine environments and the interpreted sediment transport direction (large arrow) during one time interval. This information can help identify regions of greater potential for fluvial reservoir sands.
Whittaker et al.<ref name=ch17r95>Whittaker, M. F., Giles, M. R., Cannon, S. J. C., 1992, Palynological review of the Brent Group, UK sector, North Sea, in Morton, A., C., Haszeldine, R., S., Giles, M., R., Brown, S., eds., Geology of the Brent Group: Geological Society Special Publication 61, p. 169–202.</ref> provide an industrial example in the [[Brent Group]] (Jurassic), [[North Sea]], in which the distribution of palynomorph types is used to infer the depositional environments and extent of delta [[Depocenter#Sediment_supply_rate_and_facies_patterns|progradation]] during brief intervals of the Jurassic. [[:file:applied-paleontology_fig17-19.png|Figure 3]] illustrates the nonmarine (fluvial and marsh), lagoon, barrier, and marine environments and the interpreted sediment transport direction (large arrow) during one time interval. This information can help identify regions of greater potential for fluvial reservoir sands.