Difference between revisions of "East Breaks depositional sequence"

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This article 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 [[:File:Sedimentary-basin-analysis_fig4-13.png|1]] through [[:file:Sedimentary-basin-analysis_fig4-13.png|4]].
 
This article 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 [[:File:Sedimentary-basin-analysis_fig4-13.png|1]] through [[:file:Sedimentary-basin-analysis_fig4-13.png|4]].
  
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File:Sedimentary-basin-analysis_fig4-13.png|{{figure number|1}}
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File:Sedimentary-basin-analysis_fig4-13.png|{{figure number|1}}Paleogeography of the Mississippi River depositional system from approximately 6 Ma to 4 Ma. After Piggott and Pulham;<ref name=P&P1993>Piggott, N., and A. Pulham, 1993, Sedimentation rate as the control on hydrocarbon sourcing, generation, and migration in the deepwater Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research Conference, p. 179–191.</ref> courtesy Gulf Coast Section SEPM.
File:Sedimentary-basin-analysis_fig4-14.png|{{figure number|2}}
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File:Sedimentary-basin-analysis_fig4-14.png|{{figure number|2}}Paleogeography from approximately 4 Ma to 3 Ma. After Piggott and Pulham;<ref name=P&P1993 /> courtesy Gulf Coast Section SEPM.
File:Sedimentary-basin-analysis_fig4-15.png|{{figure number|3}}
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File:Sedimentary-basin-analysis_fig4-15.png|{{figure number|3}}Paleogeography from approximately 2.5 Ma to 2 Ma. After Piggott and Pulham;<ref name=P&P1993 />; courtesy Gulf Coast Section SEPM.
File:Sedimentary-basin-analysis_fig4-16.png|{{figure number|4}}
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File:Sedimentary-basin-analysis_fig4-16.png|{{figure number|4}}Paleogeographic map representing time from about 1 Ma to the present. After Piggott and Pulham;<ref name=P&P1993 /> courtesy Gulf Coast Section SEPM. Also after Weimer;<ref>Weimer, P., 1990, [http://archives.datapages.com/data/bulletns/1990-91/data/pg/0074/0004/0000/0425.htm Sequence stratigraphy, facies geometries, and depositional history of the Mississippi fan, Gulf of Mexico]: AAPG Bulletin, vol. 74, p. 425–453.</ref> courtesy AAPG.
File:Sedimentary-basin-analysis_fig4-17.png|{{figure number|5}}
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File:Sedimentary-basin-analysis_fig4-17.png|{{figure number|5}}Map of the study area, showing the named offshore exploration areas and bathymetry.
 
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* [[Recognizing stacked depositional sequences in seismic profiles]]
 
* [[Recognizing stacked depositional sequences in seismic profiles]]
 
* [[Recognizing stacked depositional sequences from well data]]
 
* [[Recognizing stacked depositional sequences from well data]]
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==References==
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{{reflist}}
  
 
==External links==
 
==External links==

Revision as of 20:37, 15 October 2014

Exploring for Oil and Gas Traps
Series Treatise in Petroleum Geology
Part Critical elements of the petroleum system
Chapter Sedimentary basin analysis
Author John M. Armentrout
Link Web page
Store AAPG Store

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 article 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 1 through 4.

Examples in this section

Figure 5 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.

See also

References

  1. 1.0 1.1 1.2 1.3 Piggott, N., and A. Pulham, 1993, Sedimentation rate as the control on hydrocarbon sourcing, generation, and migration in the deepwater Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research Conference, p. 179–191.
  2. Weimer, P., 1990, Sequence stratigraphy, facies geometries, and depositional history of the Mississippi fan, Gulf of Mexico: AAPG Bulletin, vol. 74, p. 425–453.

External links

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