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BL
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| Record Number
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889193
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| Main Entry
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Yu, Miao
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| Title & Author
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Metallogenic mechanism of the Galinge Polymetallic Iron Skarn Deposit, Qiman Tagh Mountains, Qinghai Province /\ Miao Yu.
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| Publication Statement
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Singapore :: Springer,, 2019.
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| Series Statement
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Springer theses,
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| Page. NO
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1 online resource (xiv, 248 pages) :: illustrations (some color)
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| ISBN
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9789811079061
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: 9789811079078
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: 9789811079085
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: 9811079064
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: 9811079072
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: 9811079080
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9789811079061
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| Notes
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"Doctoral thesis accepted by Peking University, Beijing, China."
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| Bibliographies/Indexes
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Includes bibliographical references.
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| Contents
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Intro; Supervisor's Foreword; Preface; Parts of this thesis have been published in the following documents:; Contents; 1 The Qiman Tagh Orogen as a Window to the Crustal Evolution in Northern Qinghai-Tibet Plateau; 1.1 Lithostratigraphy; 1.2 Structural Framework of the Qiman Tagh Orogen; 1.3 Metamorphism; 1.4 Magmatism; 1.4.1 Proterozoic Magmatism; 1.4.2 Early Paleozoic Magmatism; 1.4.3 Late Paleozoic Magmatism; 1.4.4 Early Mesozoic Magmatism; 1.4.5 Ophiolites; 1.5 The Evolution History of the Qiman Tagh Mountains; 1.5.1 The North Qiman Tagh as an Active Continental Margin
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1.5.2 The South Qiman Tagh as an Oceanic Island Arc1.5.3 Collision Between the South and North Qiman Tagh Terrane; 1.5.4 Renewal of Orogeny in the South Qiman Tagh Terrane; 1.5.5 Final Closure of the Paleo Tethyan Qiman Tagh Ocean; 1.6 Conclusion; References; 2 Skarn Zonation and Mineral Geochemistry of the Galinge Skarn Deposit; 2.1 Ore Deposit Geology; 2.1.1 Stage Division of Skarn Evolution; 2.1.2 Stratagraphy; 2.1.3 Intrusion; 2.2 Petrography of Skarns; 2.2.1 Magnesian Skarn; 2.2.2 Calcic Skarn; 2.2.3 Ore Minerals; 2.3 Analytical Methods; 2.4 Mineral Composition Results
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2.4.1 Magnesian Skarn2.4.2 Calcic Skarns; 2.4.3 Manganesian-Calcic Skarns; 2.4.4 Magnetite Composition; 2.5 Skarn Zonation; 2.5.1 Mg-SK Zonation; 2.5.2 Ca-SK Zonation; 2.5.3 Mn-Ca-SK Zonation; References; 3 Thermodynamic Model for the Galinge Fe Skarn Deposit in Qinghai; 3.1 Thermodynamic Model for Magnesian Skarn; 3.2 Thermodynamic Model for Calcic Skarn; 3.3 The Precipitation of Magnetite; 3.4 Conclusion; References; 4 Multistage Skarn-Related Tourmalines from the Galinge Deposit: A Significant Indicator for Varying Fluid Composition; 4.1 Petrography of Samples; 4.2 Analytical Methods
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4.3 Chemical Composition of Tourmaline4.4 Controls on Compositional Variations in Tourmaline; 4.5 Implications for Skarn Deposit; References; 5 Multistage Amphiboles from the Galinge Skarn Deposit: Evidence of Igneous Rocks Replacement; 5.1 Petrography; 5.2 Analytical Method; 5.3 Mineral Composition; 5.4 Replacement of Mafic Igneous Rocks; 5.5 Incorporation of Cl; 5.6 Implications of Fluid Inclusions; 5.7 Concluding Remarks; References; 6 Formation and Breakdown of Ilvaite in the Large Galinge Skarn Fe Deposit, Western China: A Record of Multistage Retrograde Alteration
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6.1 Petrography of the Ilvaite-Bearing Association6.2 Analytical Methods; 6.3 Chemical Composition of the Ilvaite-Bearing Association; 6.4 Thermodynamic Relations of Ilvaite-Bearing Associations; 6.5 Comparison with Other Ilvaite-Bearing Skarn Deposit Types; 6.6 Conclusion; References; 7 Fluid Evolution and Stable Isotope Characters; 7.1 Classification of Fluid Inclusions; 7.2 Fluid Inclusion Microthermometry; 7.3 Processes Contributing to the Skarn Mineralization; 7.4 Sulfur Isotope Studies; 7.5 Lead Isotope Studies; References
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| Abstract
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This thesis summarizes the metallogenetic mechanism of the Galinge skarn deposit based on integrated knowledge of tectonics, geochemistry, geochronology, petrology, mineralogy, thermodynamics and hydrothermal fluids. It also discusses the multistage growth characteristics of various skarn minerals in which the varying compositions reflect the evolution of the hydrothermal fluid. The multidisciplinary nature of this research sheds new light on reconstructing metallogenetic processes successfully. It outlines the main aspects of skarn zonation based on the dominant contents of the skarn minerals and the wall rock compositions. In addition, it focuses on volatile-rich minerals including tourmaline and hastingsite, highlighting the importance of the volatile component in the skarn deposit. Lastly, it describes the regional tectonic-magmatic evolutionary history to explain the metallogenic principles, which can be used to guide prospecting in the field.
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| Subject
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Metallogeny-- China-- Qinghai Sheng.
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| Subject
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Skarn-- China-- Qinghai Sheng.
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| Subject
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Metallogeny.
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| Subject
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Skarn.
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| Subject
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China, Qinghai Sheng.
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| Dewey Classification
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552/.4
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| LC Classification
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QE364.2.M37
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