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Facies

, Volume 27, Issue 1, pp 175–178 | Cite as

Early cretaceous serpulid limestones: Chachao formation, Neuquen basin, Argentina

  • Ricardo M. Palma
  • Maria P. Angeleri
Article

Summary

Colonial serpulids (Sarcinella) are common within some limestones of the lower Chachao Formation (Valanginian) near Malargüe city at the northern border of the Neuquem basin, Argentina. The shallowing-upwards sequence is characterized by low-energetic micritic carbonates. The serpulid limestones mark the transition from a carbonate ramp stage to a platform stage.

Keywords

Facies analysis Shelf Serpulid polychaetes South America Argentina Early cretaceous 

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Copyright information

© Institut für Paläontologie, Universität Erlangen 1992

Authors and Affiliations

  • Ricardo M. Palma
    • 1
  • Maria P. Angeleri
    • 2
  1. 1.National Research CouncilUniversityBuenos AiresArgentina
  2. 2.Department of Geological SciencesUniversityBuenos AiresArgentina

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