Results 31 to 40 of about 64,911 (235)

Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

Meteoritics &Planetary Science, EarlyView.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka, Jérôme Gattacceca, Florian Dumas, Régis Braucher, ASTER Team, Ingo Leya, Mohammad Tauseef, Pierre‐Henri Blard, David Bekaert, Evelyn Füri, Laurent Zimmermann, Anthony Lagain, Hadrien A. R. Devillepoix, Matthieu Gounelle   +13 more
wiley   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

Influència de la sal en el desenvolupament tectònic de la Cordillera Oriental dels Andes de Colòmbia [PDF]

, 2016
La presència de capes de sal en conques sedimentàries no sempre és fàcil d'observar a causa de processos geològics posteriors com ara la compressió. Un estudi recent ha trobat evidències d'antigues estructures salines a la regió de Guaitiquía, al front d'
Teixell Cácharo, Antonio
core   +1 more source

Elevational variation in heart mass and suppression of hypoxia‐induced right ventricle hypertrophy in Andean leaf‐eared mice (Phyllotis)

The Journal of Physiology, EarlyView.
Abstract figure legend In lowland mammals that ascend to high elevation, hypoxia‐induced changes in the pulmonary circulation can give rise to hypoxic pulmonary hypertension (HPH) and associated right‐ventricle (RV) hypertrophy. Andean mice with broad elevational ranges have greater heart mass relative to body size at higher elevations, but they ...
Naim M. Bautista, Nathanael D. Herrera, Marcial Quiroga‐Carmona, Chandrasekhar Natarajan, Adriana Rico‐Cernohorska, Jorge Salazar Bravo, Graham R. Scott, Guillermo D'Elía, Zachary A. Cheviron, Jay F. Storz   +9 more
wiley   +1 more source

Cadenas andinas y cadenas alpinas: observaciones sobre la geología de la Cordillera de los Andes en el paralelo de la Argentina central [PDF]

, 1966
Los autores han viajado por los Andes (1965) y los Alpes (1966) a fin de tener una idea conjunta de Índole geotectónica que permita brindar los resultados de una comparación reciente sobre la organización y desarrollo de ambas
Aubouin, Jean, Borrello, Ángel V.
core  

ANÁLISIS MULTITEMPORAL Y MULTIFRACTAL DE LA DEGLACIACIÓN DE LA CORDILLERA PARÓN EN LOS ANDES DE PERÚ

Ecología Aplicada, 2014
La perdida del volumen glaciar de los nevados tropicales de nuestro pais puede ser considerada como un indicador del cambio climatico a nivel global. Segun afirma Urrutia & Vuille (2009) para el ano 2050, todos los glaciares ubicados por debajo de los 5 500 msnm desaparecerian.
Medina, Gilberto, Mejía, Abel
openaire   +3 more sources

Decadal climate variability and increasing exposure of Chilean agriculture

Agricultural &Environmental Letters, Volume 11, Issue 1, June 2026.
Abstract Central Chile has undergone a steady shift from traditional annual crops to fruit orchards and vineyards, and a decline in the area dedicated to annual crops. This transition coincides with a decrease in precipitation and an increase in temperature.
Diego Rivera, Daniela Latoja, Mario Lillo‐Saavedra, Alex Godoy‐Faúndez, Pablo Aranda‐Valenzuela, Felipe Mora   +5 more
wiley   +1 more source

Mineralogy and distribution of critical elements in the Sn–W–Pb–Ag–Zn Huanuni deposit, Bolivia [PDF]

, 2019
The polymetallic Huanuni deposit, a world-class tin deposit, is part of the Bolivian tin belt. As a likely case for a “mesothermal” or transitional deposit between epithermal and porphyry Sn types (or shallow porphyry Sn), it represents a case that ...
Alfonso, Pura, Arc, Artiaga, David, Cacho, Andreu, Campeny, Marc, Camprubí, Antoni, Castillo-Oliver, Montgarri, Consorci del Museu de Ciències Naturals de Barcelona, Martínez, Álvaro, Melgarejo, Joan Carles, Tauler, Esperança, Torres, Belén, Torró, Lisard   +12 more
core   +2 more sources

Pinguicula rosmarieae Casper, Bussmann & T.Henning (Lentibulariaceae), a new butterwort from the Amotape-Huancabamba Zone (northern Peru) [PDF]

, 2020
The insectivorous genus Pinguicula occurs along the whole Andean mountain chain from Colombia-Venezuela in the north to Tierra del Fuego in the south with a short interruption in the Peruvian-Chilean desert range.
Bussmann, Rainer W., Casper, S. Jost, Henning, Tilo   +2 more
core   +2 more sources

La frontera no deja ver la montaña: invisibilización de la cordillera de Los Andes en la Norpatagonia chileno-argentina

Revista de Geografía Norte Grande, 2013
El presente artículo se refiere a la relación entre frontera y montaña. En una mira- da geohistórica se plantea analizar el proceso a través del cual la cordillera de Los Andes perdió presencia cultural para superponerse como frontera política.
Andrés Núñez
doaj