The Sources of Cretaceous Magmatism in the Uda Sector of the Western Transbaikalian Rift Region Based on Geochemical and Isotopic (Sr, Nd, O, Pb) Data

Key Points

• This research aims to identify the sources of Cretaceous magmatism in the Uda sector using geochemical and isotopic data.
• Analyzed Sr-Nd-Pb-O isotopic data from Cretaceous basaltic rocks
• Combined geochemical data to estimate compositions of mantle and crustal magmas
• Proposed a model for their mixing based on findings
• Identified distinct compositions of mantle and crustal magmas in the Uda sector
• Proposed a mixing model that explains the geochemical data
• Although specific numerical outcomes are not provided, the model enhances understanding of magmatic processes