Moon-Forming Collision May Have Sparked Earth's Plate Tectonics

Recent studies suggest a massive ancient impact could be the origin of tectonic movements shaping our planet's surface.

Research indicates the collision with Theia around 4.5 billion years ago may have initiated Earth's tectonic activity.
The impact is thought to have created large low-velocity provinces in Earth's mantle, influencing tectonic dynamics.
Simulations show these mantle anomalies could have triggered the first subduction zones, essential for plate tectonics.
Findings challenge previous theories about the spontaneous emergence of Earth's tectonic plates.
The study enhances understanding of Earth's unique geological features and their origins.