Rare earth elements Geochemistry of Late permian mudstones in the Mount Huaying, east Sichuan Province, South China

摘要

Analyses of REEs in 25 bulk samples collected from the Longtan Formation (Late Permian) in Mount Huaying district of Sichuan Province were determined useing Inductively Coupled Plasma Mass Spectrometry. The results indicate that REEs patterns are not controlled by materials from the seawater, whereas the contribution of land plants is limited. The predominant sources of REEs are from terrigenous material as indicated by negative Eu anomaly. The Mount Emei basalt contributes to REEs enrichment of study area. So the sources of REEs are controlled by terrigenous material of Mount Emei basalt, which dominates the enrichment and pattern of REEs in Late Permian mudstone from Mount Huaying.