The Geochronology,Geochemical And Tectonic Setting Of Kuangshan Intrusive Complex In Southern Taihang Mountains

The southern Taihang Mountains is an important skarn-iron rich region,which consists of several Intrusive Complexs as a result of strong magmatism occurred in Mesozoic.This thesis focuses on the study of Kuangshan Intrusive Complex,refering to theories concerning geology,petrology,mineralogy,geochemistry,geochronology multi-angle.Based on the regional tectonic setting,the Thesis in a further step tries to explore geological basis for a regional magmatic origin and evolution,as well as mineralization dynamics mechanism.Kuangshan complexs distributed itself in space in a scattered way.The main rock types of Kuangshan complexs are diorite,monzonite,mutual contact between rock surging or pulsating intrusive contact between the representatives of both magmatic short time interval,while mine complex body with active emplacement mechanism features.Using precise U-Pb dating of zircon in the southern section,the thesis concludes that Monzonitic ages of the Taihang Mountain mine complex body is 133.1±1.4 Ma.,which is also the major southern Taihang Mesozoic rock formation age.The southern section of the Taihang diorite pluton age is 2379±63 and 1789±190 Ma,which is also the age of the substrate to form complex body of mine.The mining complex rock geochemical characteristics are mostly rock K calc-alkaline series,miscellaneous rock REE similarities are LREE enriched in HREE rightist form of loss of form,which to a certain extent reflects the evolution of the mine complex body of homologous series.Due to the power system of the Pacific the role of structural pattern occurred in North China a major turning point and lithospheric thinning large,large-scale crust-mantle interaction happened,thus forming the southern section of the Taihang Mountains intense magmatism and emplacement.