The study used 1:25000 geochemical measurement data in the Caishigou area of Qinghai Province

and the inability to comprehensively determine the ore-forming elements for the elemental concentration and high-end rejection numbers

combined with previous research results

introduced a parameter.The A value(the sum of the concentration coefficient and the coefficient of variation)discusses the ore-forming law of the element

and uses this parameter to screen out the new main ore-forming elements or indicator elements in the area.To determine the type of ore-forming elements

select the indicator elements.It provided a reasonable basis for verifying abnormal selection areas and evaluating geochemical anomalies.It also had certain guiding significance for the exploration and deployment of minerals in the area.