Ontology highlight
ABSTRACT:
SUBMITTER: Stixrude L
PROVIDER: S-EPMC7042358 | biostudies-literature | 2020 Feb
REPOSITORIES: biostudies-literature
Nature communications 20200225 1
The Earth's magnetic field has operated for at least 3.4 billion years, yet how the ancient field was produced is still unknown. The core in the early Earth was surrounded by a molten silicate layer, a basal magma ocean that may have survived for more than one billion years. Here we use density functional theory-based molecular dynamics simulations to predict the electrical conductivity of silicate liquid at the conditions of the basal magma ocean: 100-140 GPa, and 4000-6000 K. We find that the ...[more]