Results 41 to 50 of about 2,479 (162)

New conodont records of the Los Sombreros Formation (Cambrian-Ordovician) from the Western Precordillera, Argentina: Biostratigraphic and palaeoenvironmental implications

, 2019
The presence of a carbonate platform that interfingers towards the west with slope facies allows for the identification of an ancient lower Palaeozoic continental margin in the Western Precordillera of Argentina.
Torre, Gabriela, Albanesi, Guillermo Luis   +1 more
core   +1 more source

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

Cambrian sponge spicules and Chancelloriid sclerites from the Argentine Precordillera : a Review

, 2021
Spicules of sponges and sclerites of chancelloriids have been collected from in situ Cambrian sections of the La Laja Formation (San Juan Precordillera).
Beresi, M. S.
core  

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

Laurentian Cambrian trilobites of La Laja Formation, San Juan Precordillera, Argentina: A biogeographic approach to the allochthonous Precordillera model [PDF]

, 2016
Se analizan las posibilidades de distribución biogeográfica de 14 especies de trilobites ptychopáridos endémicos de Laurentia hallados en la Formación La Laja, Cámbrico Medio (Serie 3) de la Precordillera de San Juan, Argentina.
Bordonaro, Osvaldo Luis
core  

Conodont geothermometry of the lower Paleozoic from the Precordillera (Cuyania terrane), northwestern Argentina [PDF]

, 2010
The thermal history of the Precordillera terrane of northwestern Argentina has been constrained by the conodont colour alteration index (CAI) in combination with previously published paleothermal data (e.g., illite crystallinity and clay mineral ...
Albanesi, Guillermo Luis, Víctor A. Ramos, Voldman, Gustavo Gabriel, Ramos, Victor Alberto, Guillermo L. Albanesi, Gustavo G. Voldman   +5 more
core   +1 more source

Coexistence, contacts and conflicts in the precordillera of Tacna during the Late Intermediate Period (AD 1100-1450)

Bulletin de l'Institut Français d'Études Andines
The precordillera of Tacna, between the communities of Sitajara and Tarata, has long had the reputation of being a zone of cohabitation between local, altiplano and coastal populations.
Romuald Housse
doaj   +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

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  

The Role of Orogenic Collapse on Tectonic Inheritance of Passive Continental Margins

Tectonics, Volume 44, Issue 1, January 2025.
Abstract The break‐up and drift of continents is governed by the reactivation of structures in the lithosphere that occur in preference to formation of new structures during rifting. Numerical analyses indicate that mantle heterogeneities should be a first‐order control on tectonic inheritance; however, the importance of mantle relative to crustal ...
Jeffrey Pollock
wiley   +1 more source