Abstract: This research identifies a forensic geochemical link between the "missing mass" of the Grand Canyon (Arizona, USA) and the structural composition of the Giza Plateau (Egypt). Traditional geological models fail to account for the 4.17 trillion cubic meters of missing debris from the American Southwest. Simultaneously, Giza casing stones exhibit amorphous silica signatures and a 5x–6x copper isotope spike dating to 3265 BCE. This paper provides a unified theory: the Grand Canyon served as a mineral source for the reconstituted material used to construct the Giza monuments. This study follows and expands upon the high-energy excavation models previously established in "High-Energy Excavation" (Baumgartner, 2026).
Baumgartner et al. (Mon,) studied this question.