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'''Depocenter''' refers to an area or site of maximum deposition, or the geographic location of the thickest part of any specific geographic unit in a depositional basin.<ref name=ch04r37>Gary, M., McAfee, R. Jr., Wolf, C., L., 1974, [https://www.agiweb.org/pubs/glossary/ Glossary of Geology]: AGI, 805 p.</ref>

'''Depocenter''' refers to an area or site of maximum deposition, or the geographic location of the thickest part of any specific geographic unit in a depositional basin.<ref name=ch04r37>Gary, M., R. McAfee, Jr., and C. L. Wolf, 1974, [https://www.agiweb.org/pubs/glossary/ Glossary of Geology]: AGI, 805 p.</ref>

Within a basin, different areas receive different amounts of sediment through time, resulting in numerous depocenters. Each depocenter is an area containing a thick stratigraphic succession. These different depocenters have unique histories of sediment accumulation, compaction, subsidence, [[deformation]], and [[thermal maturation]] of potential hydrocarbon [[source rock]]s. Delineation of these depocenters is the second step in basin analysis. Subdividing a depocenter into age-significant units and depositional cycles is the topic of section C.

Within a basin, different areas receive different amounts of sediment through time, resulting in numerous depocenters. Each depocenter is an area containing a thick stratigraphic succession. These different depocenters have unique histories of sediment accumulation, compaction, subsidence, [[deformation]], and [[thermal maturation]] of potential hydrocarbon [[source rock]]s. Delineation of these depocenters is the second step in basin analysis. Subdividing a depocenter into age-significant units and depositional cycles is the topic of section C.

==Sediment supply rate and facies patterns==

==Sediment supply rate and facies patterns==

Within each depocenter, facies do one of the following:<ref name=ch04r106>Van Wagoner, J., C., Posamentier, H., W., Mitchum, R., M., Vail, P., R., Sarg, J., F., Loutit, T., S., Hardenbol, J., 1988, An overview of the fundamentals of sequence stratigraphy and key definitions: an integrated approach: [http://sp.sepmonline.org/content/sepspsel/1.toc SEPM Special Publication 42], p. 39–45.</ref>

Within each depocenter, facies do one of the following:<ref name=ch04r106>Van Wagoner, J., C., H. W. Posamentier, R. M. Mitchum, P. R. Vail, J. F. Sarg, T. S. Loutit, and J. Hardenbol, 1988, An overview of the fundamentals of sequence stratigraphy and key definitions: an integrated approach: [http://sp.sepmonline.org/content/sepspsel/1.toc SEPM Special Publication 42], p. 39–45.</ref>

* '''Prograde''' if the rate of sediment supply exceeds the rate of [[accommodation]] space formation.

* '''Prograde''' if the rate of sediment supply exceeds the rate of [[accommodation]] space formation.

* '''Aggrade''' if the rate of sediment supply equals the rate of accommodation space formation.

* '''Aggrade''' if the rate of sediment supply equals the rate of accommodation space formation.