Electrical conductivity of metasomatized lithology in subcontinental lithosphere - Université Clermont Auvergne Access content directly
Journal Articles The American Mineralogist Year : 2021

Electrical conductivity of metasomatized lithology in subcontinental lithosphere

Abstract

A plausible origin of the seismically observed mid-lithospheric discontinuity (MLD) in the subcontinental lithosphere is mantle metasomatism. The metasomatized mantle is likely to stabilize hydrous phases such as amphiboles. The existing electrical conductivity data on amphiboles vary significantly. The electrical conductivity data on hornblendite is much higher low modal proportion of amphiboles could only reduce the shear seismic wave velocity by 0.4-0.5%, which is significantly lower than the observed velocity reduction of 2-6%. Thus, it might be challenging to explain both seismic and magnetotelluric observations at MLD simultaneously.
Fichier principal
Vignette du fichier
Peng et al. 2021.pdf (11.74 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03191809 , version 1 (07-04-2021)

Identifiers

Cite

Ye Peng, Geeth Manthilake, Mainak Mookherjee. Electrical conductivity of metasomatized lithology in subcontinental lithosphere. The American Mineralogist, 2021, ⟨10.2138/am-2021-7942⟩. ⟨hal-03191809⟩
111 View
73 Download

Altmetric

Share

Gmail Facebook X LinkedIn More