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Geoelectromagnetic investigation of the earth's crust and mantle [Libro electrónico] / autor: Igor I. Rokityansky

Por: Rokityansky, Igor I [autor/a].
Tipo de material: Libro en línea Libro en línea Editor: New York, New York, United States: Springer-Verlag, c1982Descripción: xiii, 381 páginas : ilustraciones mapas ; 25 centímetros.ISBN: 3540106308; 9783642618031 (Print); 9783642618017 (Online).Tema(s): Geomagnetism -- Secular variations | Magnetic anomalies | Electromagnetic inductionNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Nota de bibliografía: Incluye bibliografía e índice: páginas 361-378 Número de sistema: 56019Contenidos:Mostrar Resumen:
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Electrical conductivity is a parameter which characterizes composition and physical state of the Earth's interior. Studies of the state equations of solids at high temperature and pressure indicate that there is a close relation be­ tween the electrical conductivity of rocks and temperature. Therefore, measurements of deep conductivity can provide knowledge of the present state and temperature of the Earth's crust and upper mantle matter. Infor­ mation about the temperature of the Earth's interior in the remote past is derived from heat flow data. Experimental investigation of water-containing rocks has revealed a pronounced increase of electrical conductivity in the temperature range D from 500 to 700 DC which may be attributed to the beginning of fractional melting. Hence, anomalies of electrical conductivity may be helpful in identitying zones of melting and dehydration. The studies of these zones are perspective in the scientific research of the mobile areas of the Earth's crust and upper mantle where tectonic movements, processes ofthe region­ al metamorphism and of forming mineral deposits are most intensive. Thus, in the whole set of research on physics of the Earth the studies of electrical conductivity of deep-seated rocks appear, beyond doubt, very important.

Recurso en línea: http://link.springer.com/openurl?genre=book&isbn=978-3-642-61803-1
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Incluye bibliografía e índice: páginas 361-378

1. Geoelectromagnetic fields.. 2. Elements of the theory of electromagnetic fields.. 3. The inverse problem.. 4. Global and regional geomagnetic deep sounding.. 5. Magnetotelluric sounding.. 6. Magnetic variation profiling (MVP.. 7. Electrical conductivity anomalies.. 8. Conclusions.. Subject Index

Disponible para usuarios de ECOSUR con su clave de acceso

Electrical conductivity is a parameter which characterizes composition and physical state of the Earth's interior. Studies of the state equations of solids at high temperature and pressure indicate that there is a close relation be­ tween the electrical conductivity of rocks and temperature. Therefore, measurements of deep conductivity can provide knowledge of the present state and temperature of the Earth's crust and upper mantle matter. Infor­ mation about the temperature of the Earth's interior in the remote past is derived from heat flow data. Experimental investigation of water-containing rocks has revealed a pronounced increase of electrical conductivity in the temperature range D from 500 to 700 DC which may be attributed to the beginning of fractional melting. Hence, anomalies of electrical conductivity may be helpful in identitying zones of melting and dehydration. The studies of these zones are perspective in the scientific research of the mobile areas of the Earth's crust and upper mantle where tectonic movements, processes ofthe region­ al metamorphism and of forming mineral deposits are most intensive. Thus, in the whole set of research on physics of the Earth the studies of electrical conductivity of deep-seated rocks appear, beyond doubt, very important. eng

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