Changes

==Rate of accumulation==

==Rate of accumulation==

Accumulation of overburden above these five potential source rocks is shown by a dashed line on the events chart (Figure 4-45), indicating no specific rate of accumulation until the interval of late [[Pliocene]] to [[Holocene]] sedimentation where rate variation is shown as defined by Piggott and Pulham.<ref name=ch04r75>Piggott, N., Pulham, A., 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> Figures 4-32 and 4-33 indicate a major increase in rate of sediment accumulation occurred 6 Ma, which would accelerate burial of potential source rocks into the thermal zone for [[Petroleum generation|hydrocarbon generation]].

Accumulation of overburden above these five potential source rocks is shown by a dashed line on the events chart (Figure 4-45), indicating no specific rate of accumulation until the interval of late [[Pliocene]] to [[Holocene]] sedimentation where rate variation is shown as defined by Piggott and Pulham.<ref name=ch04r75>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> Figures 4-32 and 4-33 indicate a major increase in rate of sediment accumulation occurred 6 Ma, which would accelerate burial of potential source rocks into the thermal zone for [[Petroleum generation|hydrocarbon generation]].

==Amount==

==Amount==