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Principles of igneous petrology [Libro electrónico] / autor: Sven Maaløe

Por: Maaløe, Sven [autor/a].
Tipo de material: Libro en línea Libro en línea Editor: New York, New York, United States: Springer-Verlag, c1985Descripción: xiv, 374 páginas : ilustraciones ; 25 centímetros.ISBN: 0387135200; 9783642493560 (Print); 9783642493546 (Online).Tema(s): Igneous rocksNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Nota de bibliografía: Incluye bibliografía e índice: páginas 357-371 Número de sistema: 55870Contenidos:Mostrar Resumen:
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Igneous petrology was to some extent essentially a descriptive sci­ ence until about 1960. The results were mainly obtained from field work, major element analyses, and microscopical studies. During the 1960's two simultaneous developments took place, plate tectonics became generally accepted, and the generation of magmas could now be related to the geodynamic features like convection cells and subduction zones. The other new feature was the development of new analytical apparatus which allowed high accuracy analyses of trace elements and isotopes. In addition it became possible to do ex­ perimental studies at pressures up to 100 kbar. During the 1970's a large amount of analytical data was obtained and it became evident that the igneous processes that control the compositions of magmas are not that simple to determine. The composition of a magma is controlled by the compositions of its source, the degree of partial melting, and the degree of fractionation. In order to understand the significance of these various processes the relationship between the physical processes and their geochemical consequences should be known. Presently there are several theories that attempt to explain the origin of the various magma types, and these theories can only be evaluated by turning the different ideas into quantitative models. We will so to speak have to do some book keeping for the various theories in order to see which ones are valid. the present book is intended as an introduction to the more fun­ damental aspects of quantitative igneous petrology.

Recurso en línea: http://link.springer.com/openurl?genre=book&isbn=978-3-642-49356-0
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Incluye bibliografía e índice: páginas 357-371

1. Monary systems.. 2. Binary systems.. 3. Ternary systems.. 4. Pseudobinary systems.. 5. P-t diagrams.. 6. Schreinemakers' phase theory.. 7. Gas-bearing systems.. 8. Oxygen fugacity.. 9. Partial melting.. 10. Fractional crystallization.. 11. Magma kinetics.. 12. Magma dynamics.. 13. Isotope geology.. Subject Index

Disponible para usuarios de ECOSUR con su clave de acceso

Igneous petrology was to some extent essentially a descriptive sci­ ence until about 1960. The results were mainly obtained from field work, major element analyses, and microscopical studies. During the 1960's two simultaneous developments took place, plate tectonics became generally accepted, and the generation of magmas could now be related to the geodynamic features like convection cells and subduction zones. The other new feature was the development of new analytical apparatus which allowed high accuracy analyses of trace elements and isotopes. In addition it became possible to do ex­ perimental studies at pressures up to 100 kbar. During the 1970's a large amount of analytical data was obtained and it became evident that the igneous processes that control the compositions of magmas are not that simple to determine. The composition of a magma is controlled by the compositions of its source, the degree of partial melting, and the degree of fractionation. In order to understand the significance of these various processes the relationship between the physical processes and their geochemical consequences should be known. Presently there are several theories that attempt to explain the origin of the various magma types, and these theories can only be evaluated by turning the different ideas into quantitative models. We will so to speak have to do some book keeping for the various theories in order to see which ones are valid. the present book is intended as an introduction to the more fun­ damental aspects of quantitative igneous petrology. eng

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