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{{copyright|Armentrout (1996); courtesy The Geological Society, London}} . Copyright: Armentrout (1996); courtesy The Geological Society, London. Category:Critical elements of the petroleum system
{{copyright|Armentrout (1996); courtesy The Geological Society, London}}

. Copyright: Armentrout (1996); courtesy The Geological Society, London.

[[Category:Critical elements of the petroleum system]]

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