Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg

Rock glaciers are the most abundant (peri) glacial landform in the semiarid Andes (SA, 29–34°S), covering about three times the area of mountain glaciers. Recent studies suggest they may play an important hydrological role, including generating, storing and routing water. However, processes governin...

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Main Authors: Gonzalo Navarro, Rémi Valois, Shelley MacDonell, Giulia de Pasquale, Juan Pablo Díaz
Format: Still Image
Language:unknown
Published: 2023
Subjects:
Ice
Online Access:https://doi.org/10.3389/feart.2023.1102620.s001
https://figshare.com/articles/figure/Image1_Internal_structure_and_water_routing_of_an_ice-debris_landform_assemblage_using_multiple_geophysical_methods_in_the_semiarid_Andes_jpg/22648540
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spelling ftfrontimediafig:oai:figshare.com:article/22648540 2024-09-15T18:11:37+00:00 Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg Gonzalo Navarro Rémi Valois Shelley MacDonell Giulia de Pasquale Juan Pablo Díaz 2023-04-18T04:13:34Z https://doi.org/10.3389/feart.2023.1102620.s001 https://figshare.com/articles/figure/Image1_Internal_structure_and_water_routing_of_an_ice-debris_landform_assemblage_using_multiple_geophysical_methods_in_the_semiarid_Andes_jpg/22648540 unknown doi:10.3389/feart.2023.1102620.s001 https://figshare.com/articles/figure/Image1_Internal_structure_and_water_routing_of_an_ice-debris_landform_assemblage_using_multiple_geophysical_methods_in_the_semiarid_Andes_jpg/22648540 CC BY 4.0 Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change applied geophysics cryosphere debris-covered glacier mountain hydrology rock glacier water transfers Image Figure 2023 ftfrontimediafig https://doi.org/10.3389/feart.2023.1102620.s001 2024-08-19T06:19:58Z Rock glaciers are the most abundant (peri) glacial landform in the semiarid Andes (SA, 29–34°S), covering about three times the area of mountain glaciers. Recent studies suggest they may play an important hydrological role, including generating, storing and routing water. However, processes governing these roles are still poorly known especially for glacier complex units, i.e., where there is a juxtaposition or continuity of different (peri) glacial landforms, which are common in semiarid Andean and Himalayan areas. This study aims to understand how the internal structure of an ice-debris landform assemblage controls hydrological routing. To address this aim, we used a combination of three geophysical techniques to qualitatively determine the internal structure and favourable water routing and storage zones at the Tapado glacier complex (30°S), Chile. The Tapado glacier complex consists of an assemblage of a debris-free glacier, a debris-covered glacier and two rock glaciers. For the purpose of this study, we focused on the debris-covered and active rock glacier connection. At this site, the debris-covered glacier has a relatively thin debris-cover that increases thickness downglacier. This debris cover connects to the active rock glacier and forms the active layer. The rock glacier contains a heterogenous internal structure consisting of debris with water or segregated ice filling the voids, which likely derives from the massive ice of the debris-covered glacier. The superficial debris layer of the ice-debris landforms may act as a transmissive medium by routing water downstream above the massive ice of the debris-covered glacier, but also into deeper areas, as intra-permafrost flow, in the rock glacier. The rock glacier likely has a higher capacity to transmit vertical and horizontal flows, thereby enhancing infiltration processes. This study reinforces the value of geophysical methods to determine the internal structure of ice-debris landforms, particularly in the transition between landforms, and highlights ... Still Image Ice permafrost Frontiers: Figshare
institution Open Polar
collection Frontiers: Figshare
op_collection_id ftfrontimediafig
language unknown
topic Solid Earth Sciences
Climate Science
Atmospheric Sciences not elsewhere classified
Exploration Geochemistry
Inorganic Geochemistry
Isotope Geochemistry
Organic Geochemistry
Geochemistry not elsewhere classified
Igneous and Metamorphic Petrology
Ore Deposit Petrology
Palaeontology (incl. Palynology)
Structural Geology
Tectonics
Volcanology
Geology not elsewhere classified
Seismology and Seismic Exploration
Glaciology
Hydrogeology
Natural Hazards
Quaternary Environments
Earth Sciences not elsewhere classified
Evolutionary Impacts of Climate Change
applied geophysics
cryosphere
debris-covered glacier
mountain hydrology
rock glacier
water transfers
spellingShingle Solid Earth Sciences
Climate Science
Atmospheric Sciences not elsewhere classified
Exploration Geochemistry
Inorganic Geochemistry
Isotope Geochemistry
Organic Geochemistry
Geochemistry not elsewhere classified
Igneous and Metamorphic Petrology
Ore Deposit Petrology
Palaeontology (incl. Palynology)
Structural Geology
Tectonics
Volcanology
Geology not elsewhere classified
Seismology and Seismic Exploration
Glaciology
Hydrogeology
Natural Hazards
Quaternary Environments
Earth Sciences not elsewhere classified
Evolutionary Impacts of Climate Change
applied geophysics
cryosphere
debris-covered glacier
mountain hydrology
rock glacier
water transfers
Gonzalo Navarro
Rémi Valois
Shelley MacDonell
Giulia de Pasquale
Juan Pablo Díaz
Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg
topic_facet Solid Earth Sciences
Climate Science
Atmospheric Sciences not elsewhere classified
Exploration Geochemistry
Inorganic Geochemistry
Isotope Geochemistry
Organic Geochemistry
Geochemistry not elsewhere classified
Igneous and Metamorphic Petrology
Ore Deposit Petrology
Palaeontology (incl. Palynology)
Structural Geology
Tectonics
Volcanology
Geology not elsewhere classified
Seismology and Seismic Exploration
Glaciology
Hydrogeology
Natural Hazards
Quaternary Environments
Earth Sciences not elsewhere classified
Evolutionary Impacts of Climate Change
applied geophysics
cryosphere
debris-covered glacier
mountain hydrology
rock glacier
water transfers
description Rock glaciers are the most abundant (peri) glacial landform in the semiarid Andes (SA, 29–34°S), covering about three times the area of mountain glaciers. Recent studies suggest they may play an important hydrological role, including generating, storing and routing water. However, processes governing these roles are still poorly known especially for glacier complex units, i.e., where there is a juxtaposition or continuity of different (peri) glacial landforms, which are common in semiarid Andean and Himalayan areas. This study aims to understand how the internal structure of an ice-debris landform assemblage controls hydrological routing. To address this aim, we used a combination of three geophysical techniques to qualitatively determine the internal structure and favourable water routing and storage zones at the Tapado glacier complex (30°S), Chile. The Tapado glacier complex consists of an assemblage of a debris-free glacier, a debris-covered glacier and two rock glaciers. For the purpose of this study, we focused on the debris-covered and active rock glacier connection. At this site, the debris-covered glacier has a relatively thin debris-cover that increases thickness downglacier. This debris cover connects to the active rock glacier and forms the active layer. The rock glacier contains a heterogenous internal structure consisting of debris with water or segregated ice filling the voids, which likely derives from the massive ice of the debris-covered glacier. The superficial debris layer of the ice-debris landforms may act as a transmissive medium by routing water downstream above the massive ice of the debris-covered glacier, but also into deeper areas, as intra-permafrost flow, in the rock glacier. The rock glacier likely has a higher capacity to transmit vertical and horizontal flows, thereby enhancing infiltration processes. This study reinforces the value of geophysical methods to determine the internal structure of ice-debris landforms, particularly in the transition between landforms, and highlights ...
format Still Image
author Gonzalo Navarro
Rémi Valois
Shelley MacDonell
Giulia de Pasquale
Juan Pablo Díaz
author_facet Gonzalo Navarro
Rémi Valois
Shelley MacDonell
Giulia de Pasquale
Juan Pablo Díaz
author_sort Gonzalo Navarro
title Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg
title_short Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg
title_full Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg
title_fullStr Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg
title_full_unstemmed Image1_Internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid Andes.jpg
title_sort image1_internal structure and water routing of an ice-debris landform assemblage using multiple geophysical methods in the semiarid andes.jpg
publishDate 2023
url https://doi.org/10.3389/feart.2023.1102620.s001
https://figshare.com/articles/figure/Image1_Internal_structure_and_water_routing_of_an_ice-debris_landform_assemblage_using_multiple_geophysical_methods_in_the_semiarid_Andes_jpg/22648540
genre Ice
permafrost
genre_facet Ice
permafrost
op_relation doi:10.3389/feart.2023.1102620.s001
https://figshare.com/articles/figure/Image1_Internal_structure_and_water_routing_of_an_ice-debris_landform_assemblage_using_multiple_geophysical_methods_in_the_semiarid_Andes_jpg/22648540
op_rights CC BY 4.0
op_doi https://doi.org/10.3389/feart.2023.1102620.s001
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