The '''critical moment''' is the time that best depicts the generation-migration-accumulation of hydrocarbons in a petroleum system. A map and [[cross section]] drawn at the critical moment best show the geographic and stratigraphic extent of the system. The [[burial history chart]] ([[:file:petroleum-systems_fig3-3.png|Figure 1]]) shows the critical moment and the essential elements for the fictitious Deer-Boar(.) petroleum system. | The '''critical moment''' is the time that best depicts the generation-migration-accumulation of hydrocarbons in a petroleum system. A map and [[cross section]] drawn at the critical moment best show the geographic and stratigraphic extent of the system. The [[burial history chart]] ([[:file:petroleum-systems_fig3-3.png|Figure 1]]) shows the critical moment and the essential elements for the fictitious Deer-Boar(.) petroleum system. |