Claudio Gaucher

TL;DR: A geodynamic model for southwestern Gondwana amalgamation is presented in this article, where the authors propose the name "Arachania" for the block that comprises the Cuchilla Dionisio-Pelotas, Marmora, Tygerberg and correlative terranes.

TL;DR: In this article, a positive carbon isotope excursion is reported from Paleoproterozoic carbonates of the Aravalli supergroup (northwestern India), the Minas supergroup and new sections of the Paso Severino Formation (Uruguay).

TL;DR: Carbon and Sr-isotope profiles in Upper Cambrian platformal carbonate Formations in the Precordillera, western Argentina (Zonda, La Flecha and La Silla Formations), were constructed for three representative sections: (a) Quebrada de la Flecha, Eastern PrecORDERMA, (b) Cerro LaSilla, Central PrecORDillera and (c) Quebridada de La Angostura, northern part of the Central Precordilla as discussed by the authors.

TL;DR: In this article, the existence of the Vendian to lowermost Cambrian Arroyo del Soldado Group (ASG) is reported from an area located to the SW of Minas, which was formerly mapped as part of the Lavalleja Group.

TL;DR: In this article, the results of an extensive organic and inorganic geochemical study performed in the Ediacaran sedimentary succession of the Corumba Group (CG) from SW-Brazil, deposited in a shallow marine basin in southwestern Gondwana.