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Marcelo García,Germán Aguilar,María Pía Rodríguez,James Metcalf
Pág. 313 - 326
In the Western Cordillera of northern Chile, the Proterozoic-Paleozoic Belén Metamorphic Complex is covered by late Oligocene-early Miocene (25-18 Ma) rocks, and both units are involved in west-vergent contractional deformation, which results in exhumati...
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Marco Filippi, Davide Zanoni, Gisella Rebay, Manuel Roda, Alessandro Regorda, Jean-Marc Lardeaux and Maria Iole Spalla
The Southern Alps are the retro-vergent belt of the European Alps that developed from Late Cretaceous subduction to Neogene times. The most prominent Alpine thrusts and folds, nowadays sealed off by the Adamello intrusion, were already developed before t...
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Manuel Bullejos, David Cabezas, Manuel Martín-Martín and Francisco Javier Alcalá
The k-nearest neighbors (KNN) algorithm is a non-parametric supervised machine learning classifier; which uses proximity and similarity to make classifications or predictions about the grouping of an individual data point. This ability makes the KNN algo...
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Adam G. Szulc, Andrew C. Morton, Andrew G. Whitham, Sidney R. Hemming and Stuart N. Thomson
The crystalline basement and Caledonian orogenic belt of East Greenland between 70 and 78° N are divided into five source regions on the basis of heavy mineral assemblages, mineral geochemistry, and isotopic age data from 42 modern moraine/outwash sample...
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Paulo Quezada,Francisco Hervé,Mauricio Calderón,Mark Fanning,Robert Pankhurst,Estanislao Godoy,Octavio Urbina,Rodrigo Suárez
Pág. 54 - 74
Previously undated low-grade metamorphic rocks from the Puerto Cisnes-Queulat area (44°30? S) contain detrital zircons of mid-Oligocene age (ca. 28 Ma). Their outcrops represent the easternmost occurrence of the late Oligocene to early Miocene marine vol...
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Enrico Capezzuoli, Amalia Spina, Andrea Brogi, Domenico Liotta, Gabriella Bagnoli, Martina Zucchi, Giancarlo Molli and Renzo Regoli
The Pre-Mesozoic units exposed in the inner Northern Apennines mostly consist of Pennsylvanian-Permian successions unconformably deposited on a continental crust consolidated at the end of the Variscan orogenic cycle (Silurian-Carboniferous). In the inne...
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Matías Villarroel,Pamela Jara,Reynaldo Charrier
Pág. 153 - 174
Lithological heterogeneities in a rock series deformed by the development of a fold-and-thrust belt (FTB) affects the pattern of the resulting structures. We present a series of analogue experiments to determine the effect caused on the deformation patte...
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Gemma Aiello and Mauro Caccavale
The depositional environments offshore of the Cilento Promontory have been reconstructed based on the geological studies performed in the frame of the marine geological mapping of the geological sheet n. 502 ?Agropoli?. The littoral environment (toe-of-c...
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Simone Vezzoni, Diego Pieruccioni, Yuri Galanti, Cristian Biagioni and Andrea Dini
The reconstruction of the polymetamorphic history of basement rocks in orogens is crucial for deciphering past geodynamic evolution. However, the current petrographic features are usually interpreted as the results of the metamorphic recrystallization of...
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M. Jimena Andreazzini,Susana B. Degiovanni,Aldo R. Prieto,Alfonsina Tripaldi,M. Elisa Luque
Pág. 77 - 109
Wet-meadows are wetlands of high environmental value and common in the Patagonia, Cordillera de los Andes and Pampean Ranges of Argentina. Particularly, the studies about the functioning and dynamics of wet-meadows are still insufficient and partials in ...
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