Major, trace, and rare earth element geochemistry of suspended particulate material of East Siberian rivers draining to the Arctic Ocean

摘要: The study presents data on the major, trace, and rare earth element (REE) composition of suspended particulate material (SPM) majors rivers draining to Laptev Sea (the Lena, Yana, Khatanga), as well their major tributaries. chemical can be used distinguish between supplied by individual fingerprint sediment transport further Arctic Ocean. Due size drainage basin, average Lena SPM is very similar shale, representing weathering product upper continental crust. Small variations in along course river related input through these tributaries more restricted basins specific lithologies exhibits significant differences from which seen trace REE pattern. Yana characterized strongest composition, are heterogeneity basin. In particular, shows higher Zr concentrations an enrichment As Cs. latter attributed granitic intrusions forming source Au Sn ore deposits catchment. a result dominance basaltic rocks Siberian Trap Khatanga differs significantly both Yana. strongly enriched with elements that associated basalts, i.e. Ca, Co, Cu, Fe, Mg, Ni, Ti, V. shale-normalized pattern depletion light positive Eu anomaly, corresponds Trap. However, due weathering, heavy relative superimposed this Factor analysis set identifies processes controlling clearly differentiates three studied rivers.