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The Geology, Geochemistry And Metallogenesis Of The Typical Cu-Mo Deposits, North Of East Junggar

Posted on:2013-05-31Degree:MasterType:Thesis
Country:ChinaCandidate:H B DengFull Text:PDF
GTID:2230330371482438Subject:Structural geology
Abstract/Summary:PDF Full Text Request
According to the view of the tectonic plates,The tectonic position of the study areais on the tectonics binding site of the Siberian plate and the Kazakhstan-Junggarplate.EErJiSi compressive belt is the Collision suture line of the Siberian plate and theKazakhstan plate,The main body is located in the north of east Junggar.Regional geologyshows that, the north of east Junggar is a part of Adop ted plate before Early PalaeozoicEra,which formd the Junggar ocean, since Lower Ordovician at least, It divided theJunggar Blocks and the Altai plots,they experienced the subduction,collision andhyperplasia processes,then closed gradually in Neopaleozoic.Then,The study areaentranced the period of post-collision,which was characterized by hypogene magmaticactivity.So, the tectonic environment is more complex, volcanic activity, magmatismwas widely developed in hercynian. Mineral resources of copper, nickel, gold areextremely rich, which show very good exploration prospects.The Modes of Occurrence of Cu-Mo orebodies,geochemical characteristic ofdeposit and ore genesis of Halasu, Xilekuduk,Suoerkuduke Cu-Mo deposit aredifferent.for example, Halasu Cu-Mo deposit manifestes as characteristics of porphyrycopper,and Mo slso reaches the industrial index in the early Disseminated ores and thelate Nervation Ores;Mo is the main industry element in xilekuduke Cu-Mo deposit,which occurrences in the granite porphyry body,and Cu ore hosting on the margin andcontact zone of the granite porphyry body; The copper body of Suoerkuduke occurrencesin tuff,which is the contact zone of andesitic porphyrite. With the regional tectonicevolution as the background,and the deposit geology, geochemical characteristics of theore deposit as the clues, the author want to establish the realationship of the ocean-landtransformation and the Cu-Mo mineralizationThe research means of this paper is combining with the field geological work andindoor work(obtain deposit geochemical data about rare earth elements, trace element, Sisotope, Sr-Nd isotopes and so on by Collecting, sorting, sampling, testing.Then theauthor attempts derivation the period of mineralizing, material migration, ore-formingmaterial source, etc,finally establishes the relationship between the ore genesis and theregional tectonic evolution.
Keywords/Search Tags:North of East Junggar, Cu-Mo Deposit, Regional TectonicEvolution, Ore Genesis, Relationship
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