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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 = Evaluating source rocks
| frompg = 6-1
| topg = 6-41
| author = Carol A. Law
| link = http://archives.datapages.com/data/specpubs/beaumont/ch06/ch06.htm
| pdf =
| store = http://store.aapg.org/detail.aspx?id=545
| isbn = 0-89181-602-X
}}
The amount of organic carbon present in a rock is a determining factor in a rock's ability to generate hydrocarbons.
The amount of organic carbon present in a rock is a determining factor in a rock's ability to generate hydrocarbons.
==Effect of depositional environment==
==Effect of depositional environment==
[[Depositional environment]] controls the amount of organic carbon contained in a rock. [[Source rock]]s are generally associated with areas where high organic productivity is combined with (1) deposition in poorly oxygenated environments ([[anoxic]] to [[dysaerobic]]), (2) upwelling, and (3) rapid sedimentation.<ref name=ch06r3>Chinn, E., W., 1991, The role of organic geochemistry in petroleum exploration: Basin Research Institute Bulletin, Louisiana State University, Baton Rouge, LA, p. 15–23. ''Short paper that summarizes petroleum geochemistry and its analytical techniques.''</ref>, because these processes preserve organic matter.
[[Depositional environment]] controls the amount of organic carbon contained in a rock. [[Source rock]]s are generally associated with areas where high organic productivity is combined with (1) deposition in poorly oxygenated environments ([[anoxic]] to [[dysaerobic]]), (2) upwelling, and (3) rapid sedimentation,<ref name=ch06r3>Chinn, E., W., 1991, The role of organic geochemistry in petroleum exploration: Basin Research Institute Bulletin, Louisiana State University, Baton Rouge, LA, p. 15–23. ''Short paper that summarizes petroleum geochemistry and its analytical techniques.''</ref> because these processes preserve organic matter.
==Average TOCs==
==Average TOCs==