Guizhou
China
Guizhou University
Hg isotope, mass-independent fractionation, tuff, volcanism, South China
mercury, isotope, rhizosphere soil, organic matter
mercury, isotope, discrepancy, Rhizosphere soil, Organic Matter
Scandium, weathering crust, Emeishan basalt, occurrence modes, Magnetic separation
scandium (Sc), basalt weathering crust, goethite, Leaching, alkaline treatment