Lower-middle ordovician sedimentary environment and provenance of the suri formation in the northern region of the Famatina belt, Catamarca, Argentina
- Armas, María Paula
- Cristofolini, Eber Ariel
- Escribano, Facundo Agustín
- Camilletti, Giuliano Cesar
- Barzola, Matias Gaston
- Otamendi, Juan Enrique
- Cisterna, Clara Eugenia
- Leisen, Mathieu
- Romero, Rurik
- Barra, Fernando
- Tibaldi, Alina María
DOIAbstract
The Suri Formation is a sedimentary-volcanic succession in the Famatina belt formed during Lower - Middle Ordovician arc magmatism along the western margin of Gondwana. This study reports new lithostratigrafic data relating to the Suri Formation in the Chaschuil valley (Catamarca). The survey defines the main characteristics of volcanism and sedimentation through facies analysis. Epiclastic, volcaniclastic, pyroclastic and peperitic facies were recognized and interpreted in five facies association. The features and relationships of the facies associations indicate environments such as apron volcaniclastic, inner to an outer shelf, and fan distal delta, interbedded with effusive and explosive volcanism. Volcanic activity and relative sea-lev...
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