Cenomanian-? Early Turonian minimum age of the Chubut Group, Argentina: SHRIMP U-Pb geochronology

Manuel Suárez, Marcelo Márquez, Rita De La Cruz, César Navarrete, Mark Fanning

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Four new SHRIMP U-Pb zircon ages older than 93 Ma from samples of the two uppermost formations accumulated in two different depocenters (Golfo de San Jorge and Cañadón Asfalto basins) of the Chubut Group in central Argentinean Patagonia, establish a pre-late Cenomanian-? early Turonian age for the group. It also confirms a coeval and comparable evolution of the two depocenters, where distal pyroclastic material was deposited together with fluvial and lacustrine facies.

Original languageEnglish
Pages (from-to)67-74
Number of pages8
JournalJournal of South American Earth Sciences
Volume50
DOIs
Publication statusPublished - 1 Mar 2014

Keywords

  • Central Patagonia
  • Chubut group
  • Early late Cretaceous
  • Minimum age
  • SHRIMP

ASJC Scopus subject areas

  • Geology
  • Earth-Surface Processes

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