👉 The geo-fluid, also known as the Earth's fluid or geosyncline fluid, is a conceptual term describing the dynamic and complex mixture of materials that comprise the Earth's interior and surface processes. It encompasses the semi-fluid asthenosphere beneath the lithosphere, partially molten mantle, and the overlying crust and uppermost mantle. This fluid-like behavior is due to the high temperatures and pressures that cause rocks to deform plastically over geological timescales. The geo-fluid plays a crucial role in plate tectonics, mantle convection, and the generation of Earth's magnetic field, as its movement and interactions drive the dynamic processes that shape our planet's geology.