Geochemistry of the trace elements and rare-earth elements at the boundary between Cambrian Series 2 and Series 3 at Jianshan, South China: Paleoenvironmental and stratigraphic implications

The Jianshan section in Jianhe County, Guizhou Province, is a very important auxiliary section to the candidate stratotype at the boundary between Cambrian Series 2 and Series 3. Twenty four samples collected from the Jianshan section of the Kaili Formation were analyzed for the concentrations of trace element and rare-earth elements (REEs) by inductively coupled plasma mass spectrometry. The trace element and REE geochemical characteristics of...