Changes

Gross et al.<ref name=ch04r40>Gross, O., P., Hood, K., C., Wenger, L., M., Harrison, S., C., 1995, Seismic imaging and analysis of source and [[migration]] within an integrated hydrocarbon system study, northern Gulf of Mexico basin: Abstracts, 1st Latin American Geophysical conference, p. 1–4.</ref> suggest that the oil of the East Breaks–High Island area originated from either lower Tertiary mudstones or uppermost Jurassic mudstones ([[:file:sedimentary-basin-analysis_fig4-5.png|Figure 2]]). Philippi<ref name=ch04r74>Philippi, G., T., 1974, The influence of marine and terrestrial source material on the composition of petroleum: Geochim. Cosmochim. Acta, vol. 38., p. 947–966., 10., 1016/0016-7037(74)90067-2</ref> and Sassen et al.<ref name=ch04r85>Sassen, R., Tye, R., S., Chinn, E., W., Lemoine, R., C., 1988, Origin of crude oil in the Wilcox Trend of Louisiana and Mississippi: evidence of long range migration: Gulf Coast Assoc. Geological Societies Transactions, vol. 38, p. 27–34.</ref> present evidence for source potential for crude oil in the upper Paleocene to lower Eocene Wilcox Formation. If lower Tertiary Wilcox equivalent or uppermost Jurassic mudstones are the source for hydrocarbons in the East Breaks 160-161 field, then a migration avenue must exist through the salt that underlies the minibasin and generation-migration-accumulation must have been delayed until the trap formed approximately 1.2 Ma. In fact, alternative interpretations of salt distribution at the East Breaks 160-161 field suggest a salt weld with sediment-on-sediment below the minibasin rather than a salt floor (compare [[:file:sedimentary-basin-analysis_fig4-8.png|Figures 1]] and [[:file:sedimentary-basin-analysis_fig4-9.png|3]]). This suggests migration could have occurred from even older, more deeply buried source rocks.

Gross et al.<ref name=ch04r40>Gross, O., P., Hood, K., C., Wenger, L., M., Harrison, S., C., 1995, Seismic imaging and analysis of source and [[migration]] within an integrated hydrocarbon system study, northern Gulf of Mexico basin: Abstracts, 1st Latin American Geophysical conference, p. 1–4.</ref> suggest that the oil of the East Breaks–High Island area originated from either lower Tertiary mudstones or uppermost Jurassic mudstones ([[:file:sedimentary-basin-analysis_fig4-5.png|Figure 2]]). Philippi<ref name=ch04r74>Philippi, G., T., 1974, The influence of marine and terrestrial source material on the composition of petroleum: Geochim. Cosmochim. Acta, vol. 38., p. 947–966., 10., 1016/0016-7037(74)90067-2</ref> and Sassen et al.<ref name=ch04r85>Sassen, R., Tye, R., S., Chinn, E., W., Lemoine, R., C., 1988, Origin of crude oil in the Wilcox Trend of Louisiana and Mississippi: evidence of long range migration: Gulf Coast Assoc. Geological Societies Transactions, vol. 38, p. 27–34.</ref> present evidence for source potential for crude oil in the upper Paleocene to lower Eocene Wilcox Formation. If lower Tertiary Wilcox equivalent or uppermost Jurassic mudstones are the source for hydrocarbons in the East Breaks 160-161 field, then a migration avenue must exist through the salt that underlies the minibasin and generation-migration-accumulation must have been delayed until the trap formed approximately 1.2 Ma. In fact, alternative interpretations of salt distribution at the East Breaks 160-161 field suggest a salt weld with sediment-on-sediment below the minibasin rather than a salt floor (compare [[:file:sedimentary-basin-analysis_fig4-8.png|Figures 1]] and [[:file:sedimentary-basin-analysis_fig4-9.png|3]]). This suggests migration could have occurred from even older, more deeply buried source rocks.

==[[Migration]] pathways==

==Migration pathways==

Data currently available preclude a precise correlation of the East Breaks 160-161 field oils with a specific source rock. Therefore, the petroleum system(s) charging the ''Glob alt'' reservoirs is speculative. However, the data do suggest that the hydrocarbons originate from more deeply buried thermally mature rocks than those encasing the reservoir and therefore vertical migration has occurred.

Data currently available preclude a precise correlation of the East Breaks 160-161 field oils with a specific source rock. Therefore, the petroleum system(s) charging the ''Glob alt'' reservoirs is speculative. However, the data do suggest that the hydrocarbons originate from more deeply buried thermally mature rocks than those encasing the reservoir and therefore vertical migration has occurred.