Dissertation > Excellent graduate degree dissertation topics show

Geological and Geochemical Characteristics of Vanadium Titano-magnetite Deposits in Hongge, Sichuan

Author: ZhaoWei
Tutor: LiYouGuo
School: Chengdu University of Technology
Course: Mineral prospecting and exploration
Keywords: Vanadium titano-magnetite Geochemical characteristics Hongge inSichuan
CLC: P618.31
Type: Master's thesis
Year: 2013
Downloads: 130
Quote: 0
Read: Download Dissertation

Abstract


The vanadium titano-magnetite deposits in Hongge beds in Panzhihua vanadiumtitanium magnetite-Xichang iron ore belt, which is typical of the "Panzhihua " styleiron ore deposits, iron ore is an important supply base. Deposits and mafic-ultramafic intrusions are closely related orebodies exist among rock ore. Spread orerock by rock strict Xigeda western north-south faults zone control, a generallynorth-south trending. The ore-bearing rock was also accompanied by the productionof a large number of Permian Emeishan basalt magmatic evolution of the twohomologous phase of the product. This paper mainly analyzed the mineral structurefeatures, ore body and ore intrusive body space form, rock geochemical characteristicsof ore are in the study area, mainly made the following understanding:All rock in Hongge area has obvious facies zonality cyclicity and rhythmcharacteristics, from top to bottom is divided into three facies belts and four class IIrhythm cycle: throws fai intermediated-acidic facies (argument), pyroxenite facies(phi) and gabbro intermediated-acidic facies (sigma phi), central fai Shi Yanyanfacies (phi) was further divided into fluctuation two rhythm cycle. First I, II and IIIof the start of the cycle to heap peridot crystal appeared marked, turning the IV,appears in the form of apatite.By observing the mine ore body and ore intrusive mass space position relations,concluded that it all in main emplacement magmatic eruption or order early to latefor again: basalt→gabbro→syenite and peridotite, pyroxenite (peridotite andpyroxenite type iron ore)→syenite→diabasic dike→granite.Emeishan basalt in the mine, mafic-mafic intrusive rocks and trace elementsand rare earth element distribution characteristics of iron ore has the very goodsimilarity, reflects its cognate magma evolution of some of the characteristics of thelisted products. At the same time, the area of emeishan basalt, mafic-mafic intrusive rock (La/Sm) N ratio in the range of1.56~4.86,1.04~1.56, respectively, weregreater than1, shows that the causes of the plume characteristics.There may be two kinds of iron ore deposit types:(1) deep iron separation type:stratified and lens shaped output, ore body and surrounding rock is abrupt contactrelations, characteristics of ore grade is high, with a variety of trace elements, the Cocontent greater than0.01%, mostly sideronitic structure of thick ore, commondensity lump ore.(2) alien: crystal points represented by layered ore bodies, orestructure is given priority to with sparse, dense disseminated ores, iron grade is low,Co content is often less than0.01%, the ore body and wall rock are gradienttransition or pulsation intrusive contact relationship, ore body size is bigger.The emeishan basalt of Hongge area compared with no vanadium titaniummagnetite ore deposit distribution area (such as Yanyuan in Sichuan), includingelements such as Fe, V, Ti are loss phenomenon, especially in Fe、V content, themost obvious Fe content is generally low1%~2%, show that the formation of theiron ore deposit is related to the differential evolution of the deep magma chamber. Itall region of emeishan basalts area there are multi-stage magma chamber, such as,white grass, ma on shan, north ore block, it all it all mining area south ore blockmining area are different magma chamber product of magma evolution, orebodyspatial orientation and form have obvious difference. Surface of stripped miningintrusion is currently located in the upper part of the magma chamber intrusive facies,implies deep magma chamber, is the second prospecting space.

Related Dissertations

  1. Formation Mechanism and Oil-source Correlation for Heavy Oils in the North Slope of the Biyang Depression,P618.13
  2. Study on Geological-Geochemical Characteristics and Ore Genesis of Neidong W-Mo Polymetallic Deposit in Zhuguangshan Composite Pluton,P618.6
  3. Research on Geochemical Characteristics and Sedimentary Environments of Black Shales in the Eastern Guizhou,P512.2
  4. Ecological Geochemistry Environmental Evaluation in Zhangxuan Grape Production Areas of Hebei Province,S663.1
  5. The Geological Features and Genesis of the Jiashengpan Lead-Zinc Deposit in Inner Mongolia, China,P618.4
  6. Geochronological and Petrological Study of Quartz Diorites in the Rokko Mountains of Southwest Japan: Implication for Tectonic Evolution,P597.3
  7. The Studies on the Phosphorus Forms and Character of Phosphorus Adsorption in the Sediment of Five Big-lakes,X524
  8. Origin and Metallogenic Significance of Silicalites in the Southwest of Dabancheng, Xinjiang Uygurautonomous Region,P612
  9. Qinling \,P612
  10. Geological-Geochemical Characters and Metallogenic Prediction of Wenquan Molybdenum Deposit in the West Qinling Area,P618.51
  11. Study on the Geochemical Characteristics and Source Appointment of Atmospheric Particles in Shao-Guan City,X513
  12. Approach to Geochemical Characteristics and Minerogenetic Environment of Polymetallic Nodules from the Northern Continental Margin of the South China Sea,P59
  13. Geochemical Characteristics and Genesis of Lacustrine "White SmokeType" Hydrothermal Sedimentary Rock in Qingxi Sag, Jiuquan Basin,P581
  14. Geological and Geochemical Characteristics of Cold Seep Carbonates of Neoproterozoic Nanhua Period and Their Significance for Manganese Ore Deposits in East Guizhou,P618.32
  15. Geochemical Characteristics of Seafloor Basalts and Hydrothermal Mineralization,P736
  16. The Geochemical Characteristics on Fault Gas of Main Active Faults in the Danger Earthquake Area of Gannan and Longnan,P315
  17. Petroleum Exploration Prospect Research of Permian in Yanbian Area,P618.13
  18. Research on the Geochemical Features and Genesis of the Panlong Lead-Zinc Deposit in Guangxi,P618.4
  19. Study on High-quality Hydrocarbon Source Rock in Liaozhong Sag Liaodong Bay,P618.13
  20. Geochemical Characteristics of Oil and Oil Source Correlation in Central Hebei Depression,P618.13
  21. Source Rock Evaluation of the Upper Palaeozoic in Eastern Ordos Basin,P618.13

CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Ferrous metals > Iron
© 2012 www.DissertationTopic.Net  Mobile