IMPLICANCIAS PALEOECOLÓGICAS Y PALEOAMBIENTALES DE UNA ASOCIACIÓN DE ALTA DENSIDAD DE CHONDRITES EN DEPÓSITOS DE TALUD DE LA FORMACIÓN SANTO DOMINGO, NEÓGENO DE VALDIVIA, CENTRO-SUR DE CHILE

Authors

  • Alfonso Encinas
  • Luis Buatois
  • Finger Kenneth

Abstract

Neogene marine strata of the Santo Domingo Formation crop out in the vicinity of Valdivia, south-central Chile (40°S, 73°W). The succession is characterized by dark-gray sandy siltstone with abundant Chondrites isp. The occurrence of this ichnotaxon and lower-bathyal benthic foraminifers is consistent with a slope depositional environment. The abundance of Chondrites and the low ichnodiversity reveal poorly oxygenated bottom waters. The Santo Domingo Formation most likely accumulated in fault-controlled, intraslope silled minibasins, which werw formed during a major event of Neogene subsidence of the Chilean margin

Published

2009-06-14

Issue

Vol. 45 No. 1 (2008)

Section

Articles

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How to Cite

IMPLICANCIAS PALEOECOLÓGICAS Y PALEOAMBIENTALES DE UNA ASOCIACIÓN DE ALTA DENSIDAD DE CHONDRITES EN DEPÓSITOS DE TALUD DE LA FORMACIÓN SANTO DOMINGO, NEÓGENO DE VALDIVIA, CENTRO-SUR DE CHILE. (2009). Ameghiniana, 45(1), 225-231. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/219