Identification of Sources of Terrigenous Sedimentary Rocks Based on Geochemical Data Using a Linear Programming Model

The possibility of identifying the sources of terrigenous rocks based on geochemical data using a linear programming model is considered by the example of metasedimentary rocks of the Sakukan Formation of the Kemen Group of the Udokan Complex, Aldan Shield. It is shown that tonalite–trondhjemite gneisses (56.9%) and leucocratic granite–gneisses (17.3%) of the Olekma complex, Paleoproterozoic granitoids of the Kuanda Complex (7.6%) of the Chara-Olekma geoblock, metavolcanic rocks of the Fedorov Group (15.4%) and gneiss–granites (1.8%) of the West Aldan megablock developed within it could be the sources of metasandstones of the Sakukan Formation. The results obtained are in good agreement with the Nd isotopic and geochronological data available for the metasandstones of the Sakukan Formation, which indicates the wide possibilities of identifying and searching for sources of terrigenous deposits using a linear programming model.