South Atlantic Giant Impact Hypothesis and the Energy Architecture of the Early Earth

This document presents a conceptual synthesis of a series of research studies investigating the potential geodynamic consequences of a large planetary impact occurring during the early evolution of the Earth. The proposed framework explores whether an impact associated with the formation of the Earth–Moon system may have contributed to the long-term structural and energetic organization of the Earth’s mantle. Particular attention is given to deep mantle structures revealed by seismic tomography, including Large Low Shear Velocity Provinces (LLSVPs), and their possible relationship with mantle plume generation and large-scale mantle convection patterns. The study proposes that early planetary-scale processes, including giant impacts, mantle dynamics, and planetary rotation, may collectively contribute to the long-term energetic architecture of the Earth’s interior. Repository Zenodo research series https://doi.org/10.5281/zenodo.18649764 https://doi.org/10.5281/zenodo.18643457 https://doi.org/10.5281/zenodo.18624246 https://doi.org/10.5281/zenodo.18615533 https://doi.org/10.5281/zenodo.18615377 https://doi.org/10.5281/zenodo.18614598 https://doi.org/10.5281/zenodo.18612054 https://doi.org/10.5281/zenodo.18520481 https://doi.org/10.5281/zenodo.18507643