Heat Flow in the Campos Sedimentary Basin and Thermal History of the Continental Margin of Southeast Brazil

Table 6

Evolutionary changes in thicknesses and porosities of sedimentary formations at six sites in the Campos basin, determined from results of the backstripping process.

Well ID	Formation	Thickness (m) at elapsed time				Porosity (%) at elapsed time
		0 Ma	68 Ma	90 Ma	108 Ma	0 Ma	68 Ma	90 Ma	108 Ma
RJS-5b	Emborê	3135				20
	Cretaceous	714	886			16	32
RJS-13	Emborê	936				28
	Mb. Siri	759	854			21	30
	Macaé	801	845	903		14	19	24
	Lagoa Feia	669	698	736	800	13	16	21	27
RJS-23	Emborê	972				28
	Mb. Siri	698	769			21	31
	Macaé	808	831	867		26	29	32
	Lagoa Feia	426	448	471	550	14	18	22	28
RJS-33	Emborê	793				30
	Mb. Siri	351	397			25	34
	Lagoa Feia	1845	1981		2062	16	21		25
RJS-70	Emborê	1470				28
	Lagoa Feia	831			929	17			26
RJS-99	Emborê	2054				22
	Mb. Siri	1347	1586			12	26
	Macaé	228	237	276		11	20	31
	Lagoa Feia	714	763	830	831	10	15	22	24