Oligocene, Gulf Coast, Gulf of Mexico (07)

Comments on Geologic Parameters

07 Top Seal Thickness:

The Anahuac Formation is the top seal on the Frio Formation. It is a thick, shale-rich unit deposited during widespread transgression. Surprisingly, we failed to find an isopach of the Anahuac, perhaps because of stratigraphic uncertainty. Seal quality is an issue; the Anahuac pinches out updip. Many shale beds within the Frio serve as traps for hydrocarbons and would most likely similarly trap CO2; these units must be mapped at a more local scale than we used.

07 Reference:

No data.

Click here for "RI0283. Geological CO2 Sequestration Atlas of Miocene Strata, Offshore Texas State Waters"


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