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{{publication
| image = exploring-for-oil-and-gas-traps.png
| width = 120px
| series = Treatise in Petroleum Geology
| title = Exploring for Oil and Gas Traps
| part = Critical elements of the petroleum system
| chapter = Sedimentary basin analysis
| frompg = 4-1
| topg = 4-123
| author = John M. Armentrout
| link = http://archives.datapages.com/data/specpubs/beaumont/ch04/ch04.htm
| pdf =
| store = http://store.aapg.org/detail.aspx?id=545
| isbn = 0-89181-602-X
}}
Each depocenter has a unique depositional history that reflects the integration of all responses to depositional processes and environmental factors, including tectonics, climate, sediment supply, and sea level variation. These factors result in cycles of deposition: the sediments accumulated during each cycle are the depositional sequence. Integration of multiple data sets, including (1) seismic reflection profiles, (2) biostratigraphic analyses, (3) wireline logs, (4) cores, and (5) detailed measured sections, helps us define the depositional sequences and interpret primary factors affecting formation of each cycle. Precise mapping of each depositional sequence within each depocenter requires careful data integration.

This section discusses the concept of depositional sequences and how to identify them, using a data set from the High Island–East Breaks area. The location of this study area is shown on the depocenter maps of Figures 4-13 through 4-16.

==See also==
* [[Definitions of depositional system elements]]
* [[Identifying depositional sequences]]
* [[Identifying depositional sequences in seismic sections]]
* [[Identifying depositional sequences from biostratigraphic data]]
* [[Recognizing stacked depositional sequences in seismic profiles]]
* [[Recognizing stacked depositional sequences from well data]]

==Examples in this section==
The following figure is a map of the study area, showing the named offshore exploration areas and bathymetry. It also shows the locations of the East Breaks 160-161 field, illustrated seismic profiles and a reference well.

==External links==
{{search}}
* [http://archives.datapages.com/data/specpubs/beaumont/ch04/ch04.htm Original content in Datapages]
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]

[[Category:Critical elements of the petroleum system]]
[[Category:Sedimentary basin analysis]]

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