Now showing items 1-10 of 179
Perfiles longitudinales de fiordos de Patagonia centrallong profiles of fjords of central patagonia
(Comité Oceanográfico Nacional, 2015)
Volume changes on Pio XI glacier, Patagonia: 1975-1995
Pio XI glacier, with an area of 1263 km 2 and a length of 65.7 km, is the largest of the Southern Patagonia Icefield (SPD. During the period 1945-1995 it experienced a net advance of ca. 10 km., a unique behavior considering ...
Provision of ecosystem services by the Aysén watershed, Chilean Patagonia, to rural households
How much do ecosystems contribute to the wellbeing of rural populations in developing nations? In this article we provide an answer to this question through an eco-social study of two provisioning ecosystem services (wood ...
Record-breaking climate anomalies lead to severe drought and environmental disruption in western Patagonia in 2016
Traditionally temperate and hyper-humid, western Patagonia experienced its most severe drought during the summer and fall of 2016. Along with precipitation deficits larger than 50% there was a similar reduction in river ...
Air Temperature Characteristics, Distribution, and Impact on Modeled Ablation for the South Patagonia Icefield
(Blackwell Publishing Ltd, 2019)
The glaciers of Patagonia are the largest in South America and are shrinking rapidly, raising concerns about their contribution to sea level rise in the face of ongoing climatic change. However, modeling studies forecasting ...
Tree-ring growth patterns and temperature reconstruction from Nothofagus pumilio (Fagaceae) forests at the upper tree line of southern Chilean Patagonia
(Sociedad de Biologia de Chile, 2002)
Nothofagus pumilio (Poepp. et Endl. Krasser) is a deciduous species that dominates the upper tree line of the Chilean and Argentinean Andes between 35° 36' and 55° 31' S. In this study we describe the development of 21 ...
The origin of Patagonia revealed by Re-Os systematics of mantle xenoliths
We present mineral chemistry and whole rock major, trace, and platinum group element (PGE) concentrations, and Re-Os isotope data for eighteen mantle xenoliths carried to the surface of southern Patagonia (45 degrees-52 ...
Middle Miocene calc-alkaline volcanism in Central Patagonia (47°S): Petrogenesis and implications for slab dynamics Volcanismo calcoalcalino durante el Mioceno Medio en Patagonia Central (47°S): Petrogénesis e implicaciones en la dinámica de placas
(Servicio Nacional de Geologia y Mineria, 2010)
We present a chronological (K-Ar), petrologic and geochemical study (major and trace elements, Sr- Nd isotopes) of Middle Miocene (ca. 16-14 Ma) calc-alkaline rocks (basalts to andesites) extruded in the present-day back-arc ...
Millennial-scale climate variability in northwest Patagonia over the last 15 000 yr
A pollen record from Lago Condorito (41 °45′S, 73 °07′W) shows prominent vegetation and climate changes at millennial time-scales, superimposed on multimillennial trends in temperature and westerly activity in northwest ...
Endangered species, archaeology, and stable isotopes: Huemul (Hippocamelus bisulcus) isotopic ecology in central-western Patagonia (South America)
(Academic Press, 2011)
The management and conservation of animal species should be based upon a long-term analysis that considers its geographical distribution and feeding patterns. The study of carbon and nitrogen stable isotopes on skeletal ...