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Boletín de la Sociedad Geológica Mexicana

versión impresa ISSN 1405-3322

Resumen

VEGA, Francisco J. et al. Eocene strata from the Sabinas Basin and their bearing in sedimentary basin correlation in NE Mexico. Bol. Soc. Geol. Mex [online]. 2007, vol.59, n.1, pp.115-123. ISSN 1405-3322.  http://dx.doi.org/10.18268/bsgm2007v59n1a9.

The El Arco section, located on the southeast margin of the Sabinas Basin (Adjuntas Sub-basin), includes a succession consisting of Upper Cretaceous formations typical for this unit, as well as Paleogene strata similar to those previously reported from the La Popa Basin, adjacent to the Sabinas Basin. The El Arco carbonate lentil includes microfossils and nautiloids that indicate a middle Eocene age, which is consistent with previous stratigraphic inferences for the La Popa Basin. The presence of the nautiloid Hercoglossa sp. cf. H. peruviana in the El Arco Lentil and in the upper portion of the Rancho Nuevo Formation of Parras Basin, suggests a new correlation scheme for the Tertiary stratigraphic units of the three basins (Parras, La Popa and Sabinas basins). All three units had sediment input as late as middle Eocene time.

Palabras llave : Middle Eocene; Sabinas Basin; basin correlation; Northeastern Mexico.

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