Results 11 to 20 of about 963 (139)

Are Volatiles From Subducted Ridges on the Pampean Flat Slab Fracking the Crust? Evidence From an Enhanced Seismicity Catalog

open access: yesGeochemistry, Geophysics, Geosystems, Volume 24, Issue 10, October 2023., 2023
Abstract Seamounts and ridges are often invoked to explain subduction‐related phenomena such as flat slab generation, but the extent of their involvement remains controversial. An analysis of seismicity in the region of the Pampean flat slab through an application of an automated catalog generation algorithm resulted in 35,924 well constrained local ...
A. Maharaj   +5 more
wiley   +1 more source

Transient Injection of Flow: How Torn and Bent Slabs Induce Unusual Mantle Circulation Patterns Near a Flat Slab

open access: yesGeochemistry, Geophysics, Geosystems, Volume 24, Issue 10, October 2023., 2023
Abstract Torn and bent slabs are usually associated with flat‐slab subduction where the descending plate develops a horizontal geometry beneath the overlying continent. How such slab dynamics modify the surrounding mantle flow and the overriding plate remains enigmatic.
Xiaowen Liu, Russell Pysklywec
wiley   +1 more source

Distribución y variabilidad de la precipitación en la Región Pampeana, Argentina

open access: yesCuadernos de Investigación Geográfica, 2016
La Región Pampeana argentina es el principal centro de producción agropecuario del país y su economía depende, entre otros factores, del régimen de la precipitación.
V. S. Aliaga   +4 more
doaj   +1 more source

Aplicación del método de reconstrucción y balance de sustancias al estudio de la degradación de la fertilidad de suelos en la Región Semiárida Pampeana

open access: yesSemiárida, 2020
Se detallan los fundamentos del método de reconstrucción y balance de sustancias y se consideran las posibles aplicaciones a estudios de degradación de suelos en la región semiárida pampeana, así como los parámetros utilizables a tal fin.
D. E. Buschiazzo
doaj  

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

open access: yesJournal of Agrarian Change, EarlyView.
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   +2 more
wiley   +1 more source

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

open access: yesJournal 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   +2 more
wiley   +1 more source

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

open access: yesTerra 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   +5 more
wiley   +1 more source

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

open access: yesNordic 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   +1 more
wiley   +1 more source

Contenido de Cu, Mo y Fe en arbustos y subarbustos de la Región Árida Pampeana

open access: yesSemiárida, 2020
A partir de marzo de 1987 y durante un año se realizaron cortes bimensuales en 26 especies de arbustos y subarbustos que se desarrollan e n la región árida pampeana para estudiar su contenido en Cu, Mo y Fe.
N. B. Reinaudi, G. Lorda, J. Vaquero
doaj  

Evolución de la estructura socioeconómica de la región pampeana argentina. El proceso de concentración de la producción en el período 1988-2008.

open access: yesCuadernos de Economía, 2015
Este artículo repasa la historia de la estructura socioeconómica de la región pampeana argentina en el período posterior al final de la década de 1980. El objetivo es enmarcar, analizar y comprender lo ocurrido en los tiempos más recientes, en la primera
Diego Ariel Fernández
doaj   +1 more source

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