The state of the productivity of ore-bearing intrusions and the possible impact initiation of the Siberian trap formation and the Norilsk Pd-Pt-Rh-Cu-Ni-Co deposits
Year: 2025
Type: article
Abstract: The extremely high productivity of the Norilsk ore-bearing intrusivs exceeding the palladium (20,000 times as much) and platinum (3,000 times as much) productivity of the largest Pt–Pd giant Bushveld, is shown. Such a huge difference cannot be explained by any differentiation processes. The largest igneous formation in the world, which is the Siberian Trap and the associated largest in the world Norilsk palladium deposits conform to the boundary of the terminal Permian and the Early Triassic corresponding to the most powerful impact event on Earth in East Antarctica. A hypothesis for the possible impact initiation of the superplume that generated the Siberian trap formation and the largest Norilsk Pd deposits has been suggested. This correlates with data on the palladium and platinum geochemistry in the terrestrial planets.
Author: E. M. Spiridonov
Institution: Lomonosov Moscow State University
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4408876067