Results 31 to 40 of about 595,217 (172)

Surface ages of alluvial fans in the southern Central Andes recorded by ground‐ and space‐based hyperspectral reflectance

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Secondary weathering of alluvial‐fan surfaces records the relative, and even absolute, ages of deposited sediments up to 300 ka. Hyperspectral imagery quantifies evolving mineral‐weathering pathways to unlock high‐resolution mapping and dating of these sedimentary landscapes.
Henry T. Crawford, Mitch K. D'Arcy, Andreas Ruby, Ana Laura Martínez López, Philippa J. Mason, Taylor F. Schildgen, Ricardo N. Alonso   +6 more
wiley   +1 more source

The Oldest Known Eocene Loess in the Western United States: Evidence From a Fluvial‐Eolian Transition Zone

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract The timing, stratigraphic development, and mechanisms of late Paleogene loess deposition remain poorly understood, yet they are critical to understanding how tectonics, fluvial reworking, and eolian transport interacted during a key interval of western North American landscape evolution.
Shankhadeep Baul, Majie Fan
wiley   +1 more source

All Roads Lead to China: Argentina's Beef Exports in the Context of a New Subordinate Complementarity

Journal of Agrarian Change, Volume 26, Issue 3, July 2026.
ABSTRACT This article analyses the recent expansion of Argentina's beef exports in the context of China's emergence as the world's leading beef importer and the principal destination for Argentine exports. It examines shifts in production, export orientation and domestic consumption, and analyses the export‐oriented fractions of meat capital that have ...
Emilia Ormaechea, Bruno Capdevielle, Christin Bernhold   +2 more
wiley   +1 more source

Fault Friction, Plate Rheology, and Mantle Torques From a Global Dynamic Model of Neotectonics

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Improvements in software, parallel computing, global data sets, and laboratory flow‐laws help to develop the global Earth5 thin‐shell finite‐element model of Bird et al. (2008, https://doi.org/10.1029/2007jb005460) into a benchmark study. All experiments confirm that modeled faults (other than megathrusts) have low effective friction of 0.085 ±
Peter Bird, Jon Bryan May, Michele M. C. Carafa   +2 more
wiley   +1 more source

Gestión comunitaria del diseño en la agricultura familiar. Instalaciones porcinas

Arte e Investigación, 2016
El objetivo de este trabajo es favorecer la cadena de valor de la producción porcina semintensiva y contribuir, desde el Diseño Industrial, a la resolución de problemas de instalaciones (corrales) que mejoren la sanidad animal, las actuales condiciones ...
Laura Chierchie, Sergio Justianovich, Ibar Federico Anderson   +2 more
doaj  

Giant Porphyry Copper Deposits Caused by a Slab Jamming in the Mantle Transition Zone

Terra Nova, Volume 38, Issue 2, Page 106-115, April 2026.
ABSTRACT Two giant porphyry copper deposits in the Southern Central Andes formed during the Miocene–Pliocene transition when a bend in the subducting Juan de Fernández hotspot chain jammed in the mantle transition zone, causing mega‐scale slab‐kinking. This geometry implies mechanical resistance that caused East–West compression and eventually a thrust‐
Nipaporn Nakrong, Marnie Forster, Wim Spakman, Hielke Jelsma, Francois Gaboury, Gordon Lister   +5 more
wiley   +1 more source

El contexto cultural en la implementación de proyectos de desarrollo rural. El caso del Parque Pereyra Iraola

Mundo Agrario, 2009
Productores hortí­colas que viven en el Parque Pereyra Iraola (La Plata-Berazategui) han implementado desde el año 2000 un proceso de desarrollo enmarcado en la adopción de la Agroecologí­a como modelo productivo, económico y social.
Alida Patricia Dominguez
doaj  

Dyckia semperflorenssp. nov. (Bromeliaceae: Pitcairnioideae) from the cold region of Rio Grande do Sul, southern Brazil

Nordic Journal of Botany, Volume 2026, Issue 1, January 2026.
Dyckia semperflorens (Bromeliaceae: Pitcairnioideae) is described as a new species from the temperate climate region of Rio Grande do Sul state, southern Brazil. The new species belongs to the Dyckia encholirioides complex and is closely related morphologically to Dyckia monticola, which is endemic to the Quiriri mountain range, a high‐altitude region ...
Henrique Mallmann Büneker, Jorge Ernesto de Araujo Mariath   +1 more
wiley   +1 more source

¿Cuántas personas puede alimentar la región pampeana? [PDF]

, 2021
En los últimos años, diferentes personalidades argentinas afirmaron que el país puede alimentar a 400 millones de personas o más. El presente trabajo tiene por objetivo realizar una estimación preliminar de la cantidad de personas que puede alimentar la ...
Frank, Rodolfo Guillermo
core  

Soybean entrepreneurs: Changes and continuities in the composition of entrepreneurial agriculture Los empresarios de la soja: Cambios y continuidades en la fisonomía y composición interna de las empresas agropecuarias

Mundo Agrario, 2012
A fundamental feature of the new productive model that was consolidated in the last two decades, is the centrality acquired by capitalist enterprises. This involves a number of questions which should be considered insofar they are related to the analysis
Carla Gras
doaj