Late Triassic fluvial and marine shelf succession, Quebrada Doña Inés Chica, Atacama region, northern Chile

C. M. Bell, M. Suarez

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A 400-meter-thick volcanic and fine-grained clastic sedimentary succession in Quebrada Doña Ines Chica (26°07′S latitude; 69°20'W longitude) provides a record of Late Triassic deposition in the Atacama region of northern Chile. The strata are conformably overlain by fossiliferous marine limestones and sandstones of Late Triassic to Early Jurassic (Sinemurian) age which contain the oldest ichthyosaur remains known from Central and South America. The clastic succession is interpreted as coastal fluvial deposits, with the overlying limestones representing shelf deposits.

Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalJournal of South American Earth Sciences
Volume4
Issue number4
DOIs
Publication statusPublished - 1991

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Geology

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