Sr/Y and La/Yb:Parameters of Quantitative Assess Depth of ore-bearing magma of Porphyry Copper Deposits
The formation of porphyry copper deposits is closely related to the origin depth or crustal thickness of ore bearing magma.Digital reconstruction of the crustal thickness changes in subduction zone magmatic arcs during geological history has important implications for establishing the ore-forming theory of porphyry copper deposits.Previous studies have shown a significant correlation between some whole rock geochemical parameters(Sr/Y,La/Yb)of modern island arc volcanic rocks and crustal thickness,and reliable fitting function models have been established based on a large amount of data statistical analysis.This article provides a detailed description of the correlation between these parameters and crustal thickness,and discusses the advantages of this parameter in reconstructing the crustal thickness of subduction type orogenic belts during geological history.
Big dataGeochemical parametersPorphyry Copper DepositCrustal thickness
万方数据
维普
