From the xenoliths water content to the distribution of water in the lithospheric mantle: true limits and new perspectives - Université de Lille Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

From the xenoliths water content to the distribution of water in the lithospheric mantle: true limits and new perspectives

Résumé

Knowledge of the water distribution in mantle lithosphere is important to model the evolution of cratons over time and the inner Earth water cycle. Attempt to estimate deep lithosphere water content from ‘water’ in nominally anhydrous minerals (NAM) from mantle xenoliths has been extensively used in the past. However, the ability of xenolith to preserve water signatures from deep lithosphere has never been fully demonstrated.In this talk, I will address this question through the example of a natural case study from the French Massif Central. The case study will be used to demonstrate the limits of the approach. It will also illustrate the perspectives opened up by the study of spectral signatures to identify lithosphere heterogeneities. These perspectives will be explored at global scale in the last part of the talk.
Fichier non déposé

Dates et versions

hal-03719287 , version 1 (11-07-2022)

Identifiants

  • HAL Id : hal-03719287 , version 1

Citer

Jannick Ingrin. From the xenoliths water content to the distribution of water in the lithospheric mantle: true limits and new perspectives. Magma & Fluids workshop, Groupe Magma, Jul 2022, Orléans, France. ⟨hal-03719287⟩
10 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More