Results 11 to 20 of about 963 (139)
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
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
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
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
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
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
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 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
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
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
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