Changes

==Geological setting==

==Geological setting==

[[file:oiloil-and-oilsource-rock-correlations_fig8-48.png|thumb|{{figure number|1}}From Mello et al.;<ref name=ch08r30>Mello, M., R., Gaglianone, P., C., Brassell, S., C., Maxwell, J., R., 1988a, Geochemical and biological marker assessment of depositional environments using Brazilian offshore oils: Marine and Petroleum Geology, vol. 5, p. 205–223, DOI: 10.1016/0264-8172(88)90002-5.</ref> reprinted with permission from Marine and Petroleum Geology.]]

[[file:oiloil-and-oilsource-rock-correlations_fig8-48.png|thumb|300px|{{figure number|1}}From Mello et al.;<ref name=ch08r30>Mello, M., R., Gaglianone, P., C., Brassell, S., C., Maxwell, J., R., 1988a, Geochemical and biological marker assessment of depositional environments using Brazilian offshore oils: Marine and Petroleum Geology, vol. 5, p. 205–223, DOI: 10.1016/0264-8172(88)90002-5.</ref> reprinted with permission from Marine and Petroleum Geology.]]

The offshore margin of Brazil contains oil reserves in Cretaceous and lower Tertiary reservoirs within several large basins. These basins, the product of rifting of Africa from South America in the Early Cretaceous, contain several source units representing depositional settings ranging from lacustrine to deltaic to marine.

The offshore margin of Brazil contains oil reserves in Cretaceous and lower Tertiary reservoirs within several large basins. These basins, the product of rifting of Africa from South America in the Early Cretaceous, contain several source units representing depositional settings ranging from lacustrine to deltaic to marine.