Unravelling geological controls on groundwater flow and surface water-groundwater interaction in mountain systems: A multi-disciplinary approach

Simple item page
dc.catalogadorjlo
dc.contributor.authorMarti, Etienne Bernard Christian
dc.contributor.authorLeray, Sarah Tiphaine Lucile
dc.contributor.authorVillela, Daniela
dc.contributor.authorMaringue Canales, José Ignacio
dc.contributor.authorYañez Morroni, Gonzalo José
dc.contributor.authorSalazar, Esteban
dc.contributor.authorPoblete, Fernando
dc.contributor.authorJiménez, Jose
dc.contributor.authorReyes, Gabriela
dc.contributor.authorPoblete Farias, Guillermo Hernán
dc.contributor.authorHuaman Sevilla, Zeidy Lisseth
dc.contributor.authorFigueroa González, Ronny Javier
dc.contributor.authorAraya Vargas, Jaime Andrés
dc.contributor.authorSanhueza, Jorge
dc.contributor.authorMuñoz, Marjorie
dc.contributor.authorCharrier, Reynaldo
dc.contributor.authorFernández, Gabriel
dc.date.accessioned2024-05-03T13:44:50Z
dc.date.available2024-05-03T13:44:50Z
dc.date.issued2023
dc.description.abstractMountain water resources are considered to be the world's water towers. Still, despite their importance for downstream societies and ecosystems and their vulnerability to climate change, they remain poorly understood - It is the case in particular of mountain groundwater systems. Their complexity makes them difficult to conceptualize, while their remoteness makes them difficult to study, both observationally and instrumentally. Understanding mountain hydrogeological systems is mostly limited by the lack of characterization of the subsurface geologic framework and by the limited understanding of the role of geological structures on groundwater flow and on surface water-groundwater interaction. Removing methodological barriers is therefore a necessary step for improving the understanding of mountain hydrogeological systems. To tackle this problem, we develop a comprehensive multi-disciplinary approach to gain insights into the hydrogeological role of geological structures in ungauged mountain catchments. The methodology consists of several complementary methods: (1) geological mapping at multiple scales; (2) a geophysical study including on ground Electrical Resistivity Tomography (ERT) and, gravimetry transects, and a UAV-based magnetic survey; (3) hydraulic data, including a 9 km long transect of streamflow measurements in the recession period, the longterm Normalized Difference Vegetation Index (NDVI), and varied hydric markers (e.g., a thermal spring and a puddle). The methodology is tested in the Parque Nacional del Rio Clarillo, an ungauged catchment in the Andes Mountains (& AP;130 km2) that is illustrative of the complexity of mountain hydrosystems featuring fault zones, weathered zones, intrusive rocks, and volcano-sedimentary successions.An increase of approximately 50% in the streamflow is observed over a short distance of 1 km. Such a localized and significant increase in the baseflow is not related to any superficial supply and can only be explained by groundwater exfiltration. Based on the multiscale geological mapping and geophysical survey, a regional N-S fault and a secondary set of E-W local faults are identified in the vicinity of the resurgence area, which conjointly are likely to export groundwater from a neighbouring subcatchment up to the resurgence area. Downstream of the resurgence area, no significant change in the baseflow is observed, corresponding to the presence of an impermeable granitic pluton identified by the geological and geophysical mapping. Finally, a fractured zone in the Andean foothills is identified in the volcanic unit, which coincides with a perennial thermal spring, indicating upwelling flow and hydrogeological connectivity between the mountain block and the alluvial basin.The results strongly support the ability of the proposed methodology to identify geological structures that substantially impact the evolution of the baseflow through the catchment. The complementary multi-disciplinary methods are used innovatively to infer the link between geological and hydrogeological structures. The methodology does not aim to fully characterize the geological framework of the catchment but pragmatically focuses on hydrogeologically pertinent structures that may impact baseflow and consequently catchment management.
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jhydrol.2023.129786
dc.identifier.eissn1879-2707
dc.identifier.issn0022-1694
dc.identifier.urihttps://doi.org/10.1016/j.jhydrol.2023.129786
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/85428
dc.identifier.wosidWOS:001025742600001
dc.information.autorucEscuela de Ingeniería; Marti, Etienne Bernard Christian; 0000-0002-6007-3282; 1139850
dc.information.autorucEscuela de Ingeniería; Leray, Sarah Tiphaine Lucile; 0000-0002-0341-7210; 1044639
dc.information.autorucEscuela de Ingeniería; Maringue Canales, José Ignacio; S/I; 194142
dc.information.autorucEscuela de Ingeniería; Yañez Morroni, Gonzalo José; 0000-0002-1251-3132; 204116
dc.information.autorucEscuela de Ingeniería; Poblete Farias, Guillermo Hernán; 0000-0003-2687-8738; 214462
dc.information.autorucEscuela de Ingeniería; Huaman Sevilla, Zeidy Lisseth; S/I; 1080937
dc.information.autorucEscuela de Ingeniería; Figueroa González, Ronny Javier; 0000-0002-7609-6577; 214449
dc.information.autorucEscuela de Ingeniería; Araya Vargas, Jaime Andrés; 0000-0003-1064-9252; 1053891
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final14
dc.pagina.inicio1
dc.publisherELSEVIER
dc.revistaJournal of hydrology
dc.rightsacceso restringido
dc.subjectStructural geology
dc.subjectUAV-based magnetic
dc.subjectHydrogeophysics
dc.subjectFault zone
dc.subjectMountain aquifer
dc.subjectGroundwater-surface water interaction
dc.subject.ddc550
dc.subject.deweyCiencias de la tierraes_ES
dc.subject.ods06 Clean water and sanitation
dc.subject.odspa06 Agua limpia y saneamiento
dc.titleUnravelling geological controls on groundwater flow and surface water-groundwater interaction in mountain systems: A multi-disciplinary approach
dc.typeartículo
dc.volumen623
sipa.codpersvinculados1139850
sipa.codpersvinculados1044639
sipa.codpersvinculados194142
sipa.codpersvinculados204116
sipa.codpersvinculados214462
sipa.codpersvinculados1080937
sipa.codpersvinculados214449
sipa.codpersvinculados1053891
sipa.trazabilidadWOS;2023-07-30
Files
Collections
Artículos de revistas