11 articles in this issue
Teresa E. Jordan,Christian Herrera L.,Linda V. Godfrey,Stephen J. Colucci,Carolina Gamboa P.,Javier Urrutia M.,Gabriel González L.,Jacob F. Paul
Prior to the 24-26 March 2015 extreme precipitation event that impacted northern Chile, the scenarios for Pleistocene and Holocene wetter paleoclimate intervals in the hyperarid core of the Atacama Desert had been attributed to eastern or southwestern moi... see more
Samanta Serra-Varela,Pablo D. González,Raúl E. Giacosa,Nemesio Heredia,David Pedreira,Fidel Martín-González,Ana María Sato
In San Martín de los Andes area (Argentinian Patagonia) the Palaeozoic basement consists of metamorphic and plutonic rocks. The metamorphic rocks include strongly deformed schists, gneisses and migmatites. Their geochemical and petrographic characteristic... see more
Carina Seitz,María I. Vélez,Gerardo M.E. Perillo
Climatic changes and eustatic sea levels have been assumed to be the most important controllers of the Colorado River alluvial fan in northern Patagonia. Although the alluvial fan occurs in a region considered tectonically stable, there are pieces of evid... see more
Andrea Corona,Martín Ubilla,Daniel Perea
Neolicaphrium recens is the only survivor proterotherid in the Quaternary of South America, of which few fossil records from Argentina, Uruguay and probably Brazil are known. In this paper we describe new cranial remains with teeth series of N. recens fro... see more
Josefina Carlorosi,Susana B. Esteban,M. Franco Tortello
A conodont assemblage recovered from the middle part of the Santa Rosita Formation at Pantipampa (Iruya area, northwestern Argentina) is described herein. It includes Cordylodus angulatus Pander, C. cayesi Druce and Jones, C. lindstromi Druce and Jones, C... see more
Carolina Náñez,Norberto Malumián
At the Bajada del Jagüel and Opaso sections (Añelo low, Neuquén basin), the Maastrichtian to Danian mudstones of the Jagüel Formation, are overlain by a succession of ostreid coquinas, sandstones, and mudstones. This succession has been usually referred t... see more
Oscar Ercilla
In several salars in the Andes Highlands in Chile, gypsum stromatolites have been described. Stromatolites are structures with organic origin and they are normally formed by carbonates. Field observations achieved in five salars in the Andes of northern C... see more
Isabel Santibáñez,José Cembrano,Tiaren García-Pérez,Carlos Costa,Gonzalo Yáñez,Carlos Marquardt,Gloria Arancibia,Gabriel González
The Chilean Andes, as a characteristic tectonic and geomorphological region, is a perfect location to unravel the geologic nature of seismic hazards. The Chilean segment of the Nazca-South American subduction zone has experienced mega-earthquakes with Mom... see more
Kervin Chunga,Felipe Ochoa-Cornejo,Maurizio Mulas,Theofilos Toulkeridis,Edgar Menéndez
Few moderate-to-strong earthquakes associated with active and capable geological faults have been documented for the southern coastal region of Ecuador. The seismic record of Ecuador initiates with the Guayaquil earthquake in 1787 (Mw 6.5), followed by th... see more
José Duque-Trujillo,Camilo Bustamante,Luigi Solari,Álvaro Gómez-Mafla,Gloria Toro-Villegas,Susana Hoyos
The Antioquia batholith represents the magmatic record of the interaction between the Farallón and Caribbean plates with the NW part of the South American Plate during the Meso-Cenozoic. Several authors have reported zircon U-Pb ages and whole rock geoche... see more