SciELO - Scientific Electronic Library Online

 
vol.39 issue2Recent Benthic Foraminifera from Magellan Strait and Southernmost chilean channels, CIMAR 3 FIORDOS (52° - 56° S) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Anales del Instituto de la Patagonia

On-line version ISSN 0718-686X

Abstract

MARCHANT, Margarita. Paleoecology by using Paleocene Foraminifera from Dorado Sur area of the Magellan Basin, Chile. Anales Instituto Patagonia (Chile) [online]. 2011, vol.39, n.2, pp. 5-16. ISSN 0718-686X.  http://dx.doi.org/10.4067/S0718-686X2011000200001.

We analyzed paleogene foraminifera between 10 and 2.287 m depth from samples taken from the oil well of hydrocarbon extraction, Dorado Sur N° 1, localized in the continental margin of the northwestern sector of Santiago bay, Magellan Strait in order to reconstruct the paleoecology. The analysis of the faunal composition allows distinguishing two ingressions: one for the brunswickian-Clarencian of early Eocene-Middle Eocene, and the other in the Cameronian of Late Eocene age, recorded in both outer shelf waters. Instead on foors Germanian, Moritzian, Rosarian-Gaviotian and Miradorian recorded inner shelf environments.

Keywords : Paleoecology; Foraminifera; Paleogene; Magallanes basin; Chile.

        · abstract in Spanish     · text in Spanish     · pdf in Spanish