Temporal variability and annual budget of inorganic dissolved matter in Andean Pacific Rivers located along a climate gradient from northern Ecuador to southern Peru

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dc.contributor.authorMoquet, Jean Sébastien
dc.contributor.authorGuyot, Jean-Loup
dc.contributor.authorMorera Julca, Sergio Byron
dc.contributor.authorCrave, Alain
dc.contributor.authorRau, Pedro
dc.contributor.authorVauchel, Philippe
dc.contributor.authorLagane, Christelle
dc.contributor.authorSondag, Francis
dc.contributor.authorLavado, Casimiro Waldo
dc.contributor.authorPombosa, Rodrigo
dc.contributor.authorMartinez, Jean-Michel
dc.coverage.spatialAndes
dc.coverage.spatialEcuador
dc.coverage.spatialPerú
dc.date.accessioned2018-08-01T13:03:50Z
dc.date.available2018-08-01T13:03:50Z
dc.date.issued2018
dc.description.abstractIn Ecuador and Peru, geochemical information from Pacific coastal rivers is limited and scarce. Here, we present an unedited database of major element concentrations from five HYBAM observatory stations monitored monthly between 4 and 10 years, and the discrete sampling of 23 Andean rivers distributed along the climate gradient of the Ecuadorian and Peruvian Pacific coasts. Concentration (C) vs. discharge (Q) relationships of the five monitored basins exhibit a clear dilution behavior for evaporites and/or pyrite solutes, while the solute concentrations delivered by other endmembers are less variable. Spatially, the annual specific fluxes for total dissolved solids (TDS), Ca²⁺, HCO₃, K+, Mg²⁺, and SiO₂ are controlled on the first order by runoff variability, while Cl, Na⁺ and SO₄² are controlled by the occurrence of evaporites and/or pyrite. The entire Pacific basin in Ecuador and Peru exported 30 Mt TDS·yr ¹, according to a specific flux of ∼70 t·km ²·yr ¹. This show that, even under low rainfall conditions, this orogenic context is more active, in terms of solute production, than the global average.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationMoquet, J. -S., Guyot, J. -L., Morera, S., Crave, A., Rau, P., Vauchel, P., ... Martinez, J. -M. (2018). Temporal variability and annual budget of inorganic dissolved matter in Andean Pacific Rivers located along a climate gradient from northern Ecuador to southern Peru.==$Comptes Rendus Geoscience, 350$==(1-2), 76-87. https://doi.org/10.1016/j.crte.2017.11.002es_ES
dc.identifier.doihttps://doi.org/10.1016/j.crte.2017.11.002es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalComptes Rendus Geosciencees_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/2164
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.ispartofurn:issn:1631-0713
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licences/by/4.0/es_ES
dc.subjectPacific Riverses_ES
dc.subjectC vs. Q relationshipses_ES
dc.subjectClimate controles_ES
dc.subjectRiverine dissolved budgetes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.11es_ES
dc.titleTemporal variability and annual budget of inorganic dissolved matter in Andean Pacific Rivers located along a climate gradient from northern Ecuador to southern Perues_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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