Idioma:

Isotopic composition and hydrogeochemistry of a periglacial Andean catchment and its relevance in the knowledge of water resources in mountainous areas

Sileo, Noelia R. ; Dapeña, Cristina ; Trombotto Liaudat, Dario

Isotopes in environmental and health studies, 2020-11, Vol.56 (5-6), p.480-494 [Periódico revisado por pares]

England: Taylor & Francis

Texto completo disponível

Citações Citado por

Enviar para

Título:
Isotopic composition and hydrogeochemistry of a periglacial Andean catchment and its relevance in the knowledge of water resources in mountainous areas
Autor: Sileo, Noelia R. ; Dapeña, Cristina ; Trombotto Liaudat, Dario
Assuntos: Altitude ; Andes ; Argentina ; Basins ; Chemical composition ; Chemical precipitation ; Climate Change ; Depletion ; Deuterium - analysis ; Environmental Monitoring - methods ; Fieldwork ; Fresh water ; Global warming ; groundwater ; Groundwater - chemistry ; hydrogen-2 ; Hydrogeochemistry ; isotope hydrology ; Melting ; Mountainous areas ; Natural Springs - chemistry ; Oxygen Isotopes - analysis ; oxygen-18 ; Permafrost ; Permafrost - chemistry ; Precipitation ; Rain - chemistry ; Rainfall ; Rivers - chemistry ; Snow ; Snow - chemistry ; Streams ; Water management ; Water resources ; Water Resources - supply & distribution ; Water resources management ; Water springs
É parte de: Isotopes in environmental and health studies, 2020-11, Vol.56 (5-6), p.480-494
Descrição: Glacial and periglacial basins contain the largest reserves of fresh water in the world. These areas are extremely sensitive to global warming and climate change. The dry Andes of South America are characterized by large periglacial areas. This study focuses on the water isotopic composition and hydrochemistry of a typical periglacial environment of the Andes, in the Vallecitos catchment (2400-5500 m a.s.l.), Cordillera Frontal, Argentina. Detailed fieldwork was conducted between 2013 and 2017 with 240 samples collected for major ions and physicochemical parameters, and 67 samples analysed for 2 H and 18 O. The chemical composition of precipitation is typical Ca-HCO 3 , while streams and groundwaters are Ca-MgSO 4 type. The isotope content of precipitation shows a wide dispersion. The snow samples are in general more depleted than the rainfall. Some springs vary their composition seasonally, associated to the melting of perennial snow patches. In general, all samples from the upper basin present depleted isotope contents related to recharge at higher altitudes, whereas samples from the lower basin show more enriched values. Intermediate compositions reflect the melting of snow and degrading ice-rich permafrost. These results will give a better understanding of the dynamics of water to manage water resources.
Editor: England: Taylor & Francis
Idioma: Inglês;Alemão;Russo

Links

View this record in MEDLINE/PubMed

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Isotopic composition and hydrogeochemistry of a periglacial Andean catchment and its relevance in the knowledge of water resources in mountainous areas

Sileo, Noelia R. ; Dapeña, Cristina ; Trombotto Liaudat, Dario

England: Taylor & Francis

Buscando em bases de dados remotas. Favor aguardar.