The Metallogenic Potential Of Akosay Mafic-ultramafic Rocks In The South Altyn Tagh

In this paper,according to carry out a detailed geological survey of Akosaymafic-ultramafic rocks and based on arranging the previous drilling、 geophysicalprospecting、chemical exploration date,combined with previous materials,this thesis willpreliminary analysis of the potential mineralization of the Akosay rocks by doing researcheson petrology,geochemistry,geophysical,chronology,The achievements obtained as follows:1. Akosay east ultrabasic rocks and Akosay West deep ultrabasic rocks and wall rock isa significant fault contact.Rock mass is mainly composed of harzburgite and a small amountof dunite,The whole rock mass basically do not have differentiation and zoninphenomenon.Rocks with high Mg,high nickel,high chromium,low rare earth elements andtotal rare earth. Has a very obvious characteristics of ophiolite metamorphiperidotite.Previous scholars marking out nickel ore body of nickel is mainly nickelsilicate,According to the current level of industrial mining and smelting,Akosaymetamorphic peridotite does not have the prospect of looking for copper nickel sulfidedeposits.2. Akosay west shallow mafic ultrabasic rocks has obvious characteristics ofrootlessness,which extends to a depth of about50meters deep，with the lower metamorphicperidotite is obviously fault contact relationship,so the ore-bearing rock mass is very limitedin size,restricted the scale of vanadium titanium magnetite.3. Akosay vanadium titanium magnetite ore-bearing rock zircon SHIRMP U-Pb age is489.39.0Ma.4. Geochemical prospecting method in the quaternary coverage area framed theultrabasic rock mass is a kind of very effective means of work,whether the delineated mafic-ultramafic rocks has the potential for copper and nickel sulfide deposits,Still need to fullyconsider the geological production and scientific research.5. Geophysical anomalies can be used to identify ultrabasic rocks and prospectingdirection,But the interpretation of the magnetic anomaly has multiple solutions,the actual exploration process should consider a variety of geophysical prospecting methods result.