Poster De Conférence Année : 2024

DISTRIBUTION OF ROOTLESS CONES AND LANDFORMS RESULTING FROM WATER-LAVA INTERACTIONS AT HAGI IN THE AÐALDALUR VALLEY (ICELAND)

Hervé Leyrit
Elsa Ottavi Pupier
Emeline Bourrier
  • Fonction : Auteur
  • PersonId : 1499331
Gaelle Mathieu
  • Fonction : Auteur
  • PersonId : 1499332
Julien Duquennoy
  • Fonction : Auteur
  • PersonId : 1318558
Maxime Denis
  • Fonction : Auteur
  • PersonId : 1318557

Résumé

The region of Lake Mývatn and the Aðaldalur Valley in Iceland is known for its high concentration of rootless cones. To study the processes involved in the formation of those volcanic landforms, a 1.1 km² study area rich in volcanic landforms was delineated near the Hagi guesthouse in the Aðaldalur valley. The rootless cones and other facies were referenced, and a high resolution orthomosaic and 3D model were produced using drone acquisition. A new classification of rootless volcanic cones and mounds was produced, as well as an architecture of the Hagi zone. This area is interpreted as a continuous transition of explosive interactions between lava and water followed by a basaltic flow due to depletion of water. Moreover, the lava flow mechanically erodes some of the rootless cones.
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Dates et versions

hal-04920162 , version 1 (30-01-2025)

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Domaine public

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  • HAL Id : hal-04920162 , version 1

Citer

Hervé Leyrit, Elsa Ottavi Pupier, Rejanne Le Bivic, Emeline Bourrier, Gaelle Mathieu, et al.. DISTRIBUTION OF ROOTLESS CONES AND LANDFORMS RESULTING FROM WATER-LAVA INTERACTIONS AT HAGI IN THE AÐALDALUR VALLEY (ICELAND). https://asf-lille-2024.sciencesconf.org/data/pages/ASF2024_Livre_des_resumes.pdf. 19e Congrès français de sédimentologie, Nov 2024, Lille, France. , Livre des résumés du 19e congrès français de sédimentologie, 1, pp.62/332, 2024, Actes du congrès français de sédimentologie. ⟨hal-04920162⟩
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