Zircon U-Pb Chronology,Geochemistry and Hf Isotopic Compositions of the Huoshenmiao Pluton,Western Henan
Wang Sai
Ye Huishou
Yang Yongqiang
Zhang Xingkang
Su Huimin
Yang Chenying
Abstract：The Huoshenmiao pluton located in the west of the Luanchuan ore district,southern margin of the North China Cra-ton (NCC)is mainly composed of quartz diorite,monzo-granite and granite porphyry.The Huoshenmiao pluton is closely relat-ed to the Huoshenmiao Mo deposit.While the degree of research on the Huoshenmiao pluton is very low,which seriously re-strict the understanding of the genesis of the Huoshenmiao Mo deposit.Three types of rock including quartz diorite,monzo-granite and granite porphyry has been researched by zircon U-Pb chronology,geochemistry and Hf isotope.The forming ages of quartz diorite,monzo-granite and granite porphyry are 150.3±0.6 Ma,146.0±0.6 Ma and 145.1±0.5 Ma respectively,and are products of the second magmatism of the Luanchuan ore district,Late Jurassic.Geochemistry and zircon Hf isotope show that the Huoshenmiao pluton belongs to Ⅰ-type granite,and it results from ascending magma formed by partial melting of dif-ferent source regions.The quartz diorite stems from remelting of the enriched mantle,while the monzo-granite and granite por-phyry are the products of mafic magma derived from remelting of the enriched mantle mixed with felsic magma derived from remelting of the Taihua TTG.
Keywords：zircon U-Pb chronologygeochemistryHf isotopeHuoshenmiao plutonWest Henan
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：24( 293-316 )