Lunar Tides Archives - Astrobiology

Schematic diagram of the domain (not to scale). The red line represents the outer boundary of the core; the blue line is the outer boundary of the BMO. (a) 𝑥–𝑧 (meridional) plane. The 𝑧 axis is Earth’s rotation axis and normal to the orbital plane. (b) 𝑥–𝑦 (orbital and equatorial) plane. The blue BMO ellipse always has its long axis aligned with the Moon, but the long axis of the red CMB ellipse can have a non-zero phase lag 𝛥𝜙 relative to the Moon. Throughout the main text, we assume that the solid mantle is static, in which case the BMO outer boundary is undeformed; we consider its deformation in appendix D. -- astro-ph.EP

Astrogeology, Lava / magma ocean / Volcanic Worlds, Moon, Origin & Evolution of Life, Status Report

Resonant Lunar Tides Of Earth’s Core And Basal Magma Ocean

by Keith CowingJune 16, 2026June 16, 2026

Earth’s magnetic field is generated by fluid motion in the liquid-metal core and has been active for billions of year.