Results 61 to 70 of about 5,510 (244)

Preserved Through Hyperaridity, 150 Million Years of Exhumation and Strike‐Slip Deformation in the Atacama Coastal Cordillera

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The Coastal Cordillera of northern Chile, in the forearc of the Andean subduction zone, provides an ideal site to evaluate exhumation above the oldest active subduction under extreme aridity. This range lies parallel to a sediment‐starved trench, has experienced hyperaridity since the Miocene, and is transected by the ∼1,000‐km‐long Atacama ...
T. F. Aránguiz‐Rago, A. R. Duvall, K. W. Huntington   +2 more
wiley   +1 more source

First record of ashgillian conodonts in the Argentine Precordillera [PDF]

, 2008
A reworked conodont fauna from the Empozada Formation (Mendoza Precordillera) which belongs to the Caradoc-Ashgill (British Series from the Upper Ordovician) interval is reviewed. For the first time Amorphognathus cf.
Heredia, Susana Emma
core  

A Transient Coastal Uplift Event Revealed by Pleistocene Marine Terraces Along the 2015 M8.3 Illapel Earthquake Rupture, Chile

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Uplifted Pleistocene marine terraces in the Illapel area along the forearc of central Chile record spatially and temporally variable uplift rates on glacial‐cycle timescales. However, the underlying mechanisms for this uplift variability and its potential relationship with the megathrust‐earthquake cycle remain poorly understood.
Roland Freisleben, Julius Jara‐Muñoz, Daniel Melnick, Dominik Brill, Simone Racano, Christian Creixell Torres, Ismael Murillo Rogers, Marcelo M. Rivadeneira, Manfred R. Strecker   +8 more
wiley   +1 more source

Structural analysis at the southern end of the Central Precordillera of San Juan [PDF]

, 2003
The Central Precordillera of San Juan is a thin-skinned fold and thrust belt bounded to the east by the thick-skinned structures of the Eastern Precordillera.
Giampaoli, P., Cegarra, M.I.
core   +2 more sources

Resolving Crustal and Subcrustal Dynamic Sources in Continental Arc Magmas: The Cenozoic Andean Arc of Central Chile

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.
Abstract The Andean margin of Central Chile (∼32°40′–34°30′S) records abundant Cenozoic arc magmatic activity with variable compositional characteristics. This is examined through the analysis of an extensive database of new and published whole‐rock geochemistry and Sr‐Nd isotopic compositions, in addition to zircon Hf and O isotopic compositions.
M. Muñoz‐Gómez, C. M. Fanning, F. Tapia, I. Payacán, F. Fuentes, M. Farías, R. Charrier, M. Polvé, S. Quiñones, K. Deckart, A. Fock   +10 more
wiley   +1 more source

Provenance analysis of Devonian peripheral foreland basins in SW Gondwana, case of the Gualilán Group, Precordillera Argentina

International journal of earth sciences, 2020
We carried out a sedimentary provenance analysis of the Devonian Gualilán Group, Central Precordillera of western Argentina, focusing on the siliciclastic record of the Talacasto (Lower Devonian) and the Punta Negra (Lower-Middle Devonian) formations ...
Jonatan A. Arnol, N. Uriz, C. Cingolani, M. Basei, P. Abre   +4 more
semanticscholar   +1 more source

Dimorphinites(Ammonoidea, Jurassic, upper Bajocian) in the precordillera of northern Chile [PDF]

Journal of Paleontology, 2011
A new upper Bajocian ammonite assemblage containing the morphoceratidsDimorphinites dimorphus(d'Orbigny) andVigoriceras defrancei(d'Orbigny) is reported from the circum-Pacific area. These ammonites were found at the top of the Torcazas Formation, in the Quebrada San Pedro area, Precordillera of northern Chile.
Fernández López, Sixto Rafael, Chong Díaz, Guillermo B.   +1 more
openaire   +2 more sources

Written in bones: palaeoclimate histotaphonomic history inferred from a complete Megatherium skeleton preserved in the Atacama Desert

Palaeontology, Volume 68, Issue 4, July/August 2025.
Abstract A nearly complete and relatively well‐preserved skeleton of the giant ground sloth Megatherium sp. in the hyperarid core of the Atacama Desert reveals how climate related taphonomic processes drastically transformed these remains over time.
Luisa Straulino Mainou, Jacqueline Correa‐Lau, Rafael Labarca, Natalia A. Villavicencio, Vivien G. Standen, Susana Monsalve, Paula C. Ugalde, Sergey Sedov, Teresa Pi Puig, Alan Ulises Loredo‐Jasso, Francisco J. Caro, Gabriela M. Jarpa, Patricia Hernández‐Michaud, Claudio Latorre, Calogero M. Santoro   +14 more
wiley   +1 more source

Systematic meteorite collection in the Catalina Dense Collection area (Chile): Description and statistics

Meteoritics &Planetary Science, Volume 60, Issue 2, Page 308-323, February 2025.
Abstract We present the outcome of search campaigns conducted in the Catalina Dense Collection area (DCA) located in the central depression of the Atacama Desert, Chile. The “Catalina Systematic Collection” (CSC) was assembled through systematic on‐foot searches, resulting in a total of 1599 meteorites, before pairing, collected over a surface of 6.80 ...
Carine Sadaka, Jérôme Gattacceca, Matthieu Gounelle, Mathieu Roskosz, Anthony Lagain, Romain Tartese, Lydie Bonal, Clara Maurel, Rodrigo Martinez, Millarca Valenzuela   +9 more
wiley   +1 more source

The petrogenesis of back-arc magmas, constrained by zircon O and Hf isotopes, in the Frontal Cordillera and Precordillera, Argentina

Contributions to Mineralogy and Petrology, 2020
The Andean margin of the South American continent has been magmatically and tectonically active for over 330 million years. It is the type location where “Cordilleran-type” magmatism and orogenesis are manifest.
Gregory H. Poole, A. Kemp, S. Hagemann, M. Fiorentini, H. Jeon, I. Williams, E. Zappettini, N. Rubinstein   +7 more
semanticscholar   +1 more source