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The Earth's Lower Mantle
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Librairie Eyrolles - Paris 5e
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The Earth's Lower Mantle

The Earth's Lower Mantle

Felix v kaminsky (author)

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245 pages, parution le 29/05/2017
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Résumé

Introduction: History of the problem
1. Models of the Earth's mantle
2. High-pressure experimental data on ultramafic and mafic systems
3. Natural lower-mantle minerals
3.1. General
3.2. Ultramafic association
3.3. Mafic association
3.4. Carbonatitic association
4. Lower-mantle mineral associations 
4.1. Ultramafic
4.2. Mafic
4.3. Carbonatitic association, its origin and role in the formation of diamond
5. Some problems in the mineral composition of the lower mantle
6. Iron spin crossover in lower mantle minerals
6.1. (Mg,Fe)O 
6.2. Bridgmanite 
6.3. Distribution of iron between (Mg,Fe)O and bridgmanite: theoretical constructions, experiments and natural compositions
7. Phase transitions in lower-mantle minerals 
7.1. Bridgmanite 
7.2. CaSi-perovskite 
7.3. (Mg,Fe)O 
7.4. SiO2 
7.5. Other minerals
8. Crystallographic features (regularities) of lower-mantle mineral phases 
9. Changes in properties of chemical elements under high pressures and possible new mineral compounds in Deep Earth
10. Seismic inhomogeneities in the lower mantle and their nature
11. Local inhomogeneities in the lower mantle
12. Geochemistry of the lower mantle 
12.1. General composition of the lower mantle 
12.2. Trace element geochemistry 
12.3. Volatiles in the lower mantle 
12.4. Isotopic characteristics of carbon, oxygen and nitrogen in the lower mantle
13. Oxidation potential in the lower mantle
14. D" layer: transition from the lower mantle to the Earth's core. (Postperovskite and other minerals in the D" layer) 
15. Conclusions. Compositional model of the lower mantle. Further problems 
References
Subject index
This book presents the first overview of the composition and structure of the Earth's lower mantle. The first part focuses on the study of lower-mantle minerals, identified as inclusions in diamonds from different regions of the world. Three associations are established among the lower-mantle minerals: ultramafic, mafic, and carbonatic. The carbonatic association is of particular interest because it characterizes the media of natural diamond formation. In turn, the second part analyzes the structure of the lower mantle, revealing its heterogeneous composition. It is based on the results of experiments demonstrating phase transitions in lower-mantle minerals, and on seismological data. Deep-seated earthquakes point to the presence within the lower mantle of numerous seismic boundaries caused by mineral structure transitions. In closing, the last part of the book compares observed data with experimental data, highlighting several discrepancies that indicate Earth may have a more complex planetary history than previously assumed, and examining its primarily non-chondritic composition.
1st Edition 2017th editionIllustrationsQE509.4Earth (Planet) - Mantle.1SwitzerlandCham9783319556840|9783319556857Felix V. Kaminsky.Springer Geology

Caractéristiques techniques

  PAPIER
Éditeur(s) Springer
Auteur(s) Felix v kaminsky (author)
Parution 29/05/2017
Nb. de pages 245
Format 155 x 235
Poids 684g
EAN13 9783319556833

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