图书简介
The well-known concept of plate tectonics long dominated notions of stratified structure of ophiolite associations and overlap gabbroides on ultramafites. This book presents data that does not agree with these views and suggests an earlier introduction of protrusions of ultramafic upper mantle restites against the intrusions of gabbroides breaks, and their parent melts are actively working on ultramafic and convert them. This work presents new evidence of polychronic and polygenic formation of complex mafic-ultramafic massifs and various mechanisms of the formation of their rocks.
Introduction 1. Actual problems of petrology of the mafic-ultramafic massifs 2. Structure position of the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 3. Geological structure of the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 3.1. Beriozovska massif 3.2. Shel?tingsk massif 3.3. Komsomol?sk massif 3.4. Yuzhno-Shmidtovsk massif 4. Petrography description of rocks from the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 4.1. Introduction remarks 4.2. Restite (orthomagmatic) ultramafites 4.3. Hybrid (paramagmatic) ultramafites 4.4. Hybrid (paramagmatic) gabbroids from the endomorphic zones with ultramafites 4.5. Orthomagmatic gabbroids 4.6. Hybrid (paramagmatic) gabbroids from the endomorphic zones with country rocks 5. Petrochemical description of rocks from the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 5.1. Introduction remarks 5.2. Variations of main chemical component contents in the petrogenetic groups of rocks 5.3. Comparative characteristics of the petrogenic group of rocks based on the values of their petrochemical parameters 5.4. On the taxonomy of ultramafic and gabbroid rocks on the based of normalized values of petrochemical parameters 5.5. On the relationship of the chemical composition of ultramafic restites with a degree of partial melting of the underlying sources 6. Geochemistry of rocks from the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 6.1. Introduction remarks 6.2. Distribution of Ca, K and other trace elements in the rocks from the Beriozovska massif (data of RFA-SR method) 6.3. Geochemical parameters of rocks from the Beriozovsa massif (data of RFA-SR method) 6.4. Distribution of rare earth elements in the rocks of mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 6.4.1. Methods of determination rare earth elements in rocks 6.4.2. Regularities of distribution of rare earth elements in the ultramafic restites 6.4.3. Regularities of distribution of rare earth elements in the hybrid ultramafic rocks 6.4.4. Regularities of distribution of rare earth elements in the orthomagmatic gabbroids 6.4.5. Regularities of distribution of rare earth elements in the hybrid gabbroids 7. Rubidium-strontium isotopic systems of rocks from the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolitic association 7.1. Introduction remarks 7.2. Rubidium-strontium isotopic relationship in rocks from the mafic-ultramafic massifs the Beriozovska, Shel?tingsk and Komsomol?sk massifs 8. Chemical composition of rock-forming and accessory minerals from rocks of the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 8.1. Introduction remarks 8.2. Rock-forming minerals 8.2.1. Olivines 8.2.2. Orthopyroxenes 8.2.3. Clinopyroxenes 8.2.4. Plagioclases 8.2.5. Amphiboles 8.3. Distribution coefficients between chemical components of coexisting rock-forming minerals 8.4. On estimates of the temperature of the chemical equilibrium of coexisting olivine, orthopyroxene and clinopyroxene from ultramafites of Beriozovska massif 8.5. Accessory minerals 8.5.1. Zircons 8.5.2. Chromspinels 8.5.3. Magnetites 9. The distribution of trace elements in rock-forming minerals from rocks of the mafic-ultramafic massifs of the Eastern-Sakhalin ophiolite association 9.1. Introduction remarks 9.2. Methods of analyses 9.3. Orthopyroxenes 9.4. Clinopyroxenes 9.5. Plagioclases 9.6. On the distribution coefficients of rare earth elements between coexisting rock-forming minerals 10. Isotope-geochronological and geochemical systematization of zircon from the rocks of Beriozovskiy mafic-ultramafic massif 10.1. Introduction remarks 10.2. Description of the collection of zircons from rocks of Beriozovska massif 10.3. Isotopic dating and trace elements analyses of zircons methods 10.4. Morphological and optical properties of zircons 10.5. Isotopic age of zircons 10.6. Geochemistry of zircons 10.7. On some peculiarities of isotopic dating of rocks from mafic-ultramafic massifs using zircons 11. On the manifestations of chromitites in the mafic-ultramafic massifs of Sakhalin Island 11.1. Introduction remarks 11.2. The manifestations of chromitites in the Beriozovska and Yuzhno-Shmidtovsk massifs 11.3. The chemical composition of chromititesSummary 12. Geochemistry of platinum group elements and rhenium in rocks and chromitites from the mafic-ultramafic massifs of Sakhalin Island 12.1. Introduction remarks 12.2. Geochemistry of platinum group elements and rhenium in rocks 12.2.1. On the some singularities of the distribution of platinum group elements and rhenium in the rocks of different composition 12.2.2. The patterns of distribution of normalized to primitive mantle the contents of platinum group elements and rhenium 12.2.3. On the parameters of distribution of platinum group elements and rhenium in the rocks 12.2.4. The co variations of contents of iridium and other platinum group elements in rocks 12.2.5. On the relationship between of the contents of the element platinum group and rare earth elements in ultramafic rocks and gabbros 12.3. Geochemistry of platinum group elements and rhenium in chromitites 12.4. On mineral-concentrators of platinum group elements in Chromitites from Beriozovska massif 13. The foundations of the concept of polygenic formation of mafic-ultramafic complexes as part of the ophiolite associations Conclusion
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