Electrical structure of the upper mantle beneath Central Europe: Results of the CEMES project

Semenov, V. Yu.; Pek, Josef; Ádám, A.; Jóźwiak, Waldemar; Ladanyvskyy, Boris; Logvinov, I.M.; Pushkarev, P. Yu.; Vozár, J.

doi:10.2478/s11600-008-0058-2

Cited by 46 publications

(29 citation statements)

References 34 publications

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“…During 2001-2003 the MT data have been collected in the frame of Central Europe Mantle geoElectrical Structure (CEMES) project at positions of 11 permanent geomagnetic observatories situated within few 100 km along the South West margin of the East European Craton (cf. Semenov et al 2008). Five years or longer MT measurements has been conducting in the frame of the EMScope component of the NSF Earthscope project.…”

Section: Extending Long-term Magnetic (Geoelectric) Observationsmentioning

confidence: 99%

Deep Electromagnetic Studies from Land, Sea, and Space: Progress Status in the Past 10 Years

Kuvshinov

2011

Surv Geophys

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This review paper summarizes advances in deep electromagnetic studies of the Earth in the past decade. The paper reports progress in data interpretation, with special emphasis on three-dimensional and quasi one-dimensional developments, and results. The results obtained from data of different origin-geomagnetic observatories, long-period magnetotelluric experiments, submarines cables, and from low-Earth orbiting geomagnetic satellite missions-are described. Both frequency-domain and time-domain approaches are addressed. Perspectives for the future are also discussed.Keywords Observatory, MT, cable, and satellite induction data Á Electrical conductivity in the mantle Á Water in upper mantle and transition zone Á Sources of magnetospheric, ionospheric and oceanic origin Á Global EM inversion Á Multi-dimensional conductivity models Á Frequency-and time-domain approaches 1 Introduction

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Section: Extending Long-term Magnetic (Geoelectric) Observationsmentioning

confidence: 99%

Deep Electromagnetic Studies from Land, Sea, and Space: Progress Status in the Past 10 Years

Kuvshinov

2011

Surv Geophys

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“…This solution gave a positive result under deep MT which allowed estimates of conductivity up to the Earth's mantle (Egbert and Booker, 1992;Semenov et al, 2008). But, it is not always applicable, especially when working in populated or mountainous areas where you cannot expand the long lines for the necessary long time.…”

Section: Introductionmentioning

confidence: 99%

Improving of electrical channels for magnetotelluric sounding instrumentation

Prystai¹,

Pronenko²

2015

Geosci. Instrum. Method. Data Syst.

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Abstract. The study of the deep structure of the Earth's crust is of great interest for both applied (e.g. mineral exploration) and scientific research. For this the electromagnetic (EM) studies which enable one to construct the distribution of electrical conductivity in the Earth's crust are of great use. The most common method of EM exploration is magnetotelluric sounding (MT). This passive method of research uses a wide range of natural geomagnetic variations as a powerful source of electromagnetic induction in the Earth, producing telluric current variations there. It includes the measurements of variations of natural electric and magnetic fields in orthogonal directions at the surface of the Earth. By this, the measurements of electric fields are much more complicated metrological processes, and, namely, they limit the precision of MT prospecting. This is especially complicated at deep sounding when measurements of long periods are of interest. The increase in the accuracy of the electric field measurement can significantly improve the quality of MT data. Because of this, the development of a new version of an instrument for the measurements of electric fields at MT -both electric field sensors and the electrometer -with higher levels relative to the known instrument parameter level -was initiated. The paper deals with the peculiarities of this development and the results of experimental tests of the new sensors and electrometers included as a unit in the long-period magnetotelluric station LEMI-420 are given.

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“…×àñòîòíûé äèàïàçîí ýêñïåðèìåíòàëüíûõ äàííûõ è äëèíà ïðîôèëÿ ïîçâîëÿþò èññëåäî-âàòü íå òîëüêî çåìíóþ êîðó, íî è çàõâàòûâàòü âåðõíþþ ìàíòèþ. Ðàçðåç âìåùàþùåé ñðåäû âåðõíåé ìàíòèè âçÿò ïî ðåçóëüòàòàì èíâåðñèè êðèâûõ çîíäèðîâàíèÿ íà ãåîìàãíèòíûõ îáñåð-âàòîðèÿõ Ìèíñê è Êèåâ [Semenov et al, 2008].…”

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Geoelectric model of consolidated Earth's crust and upper mantle along the geotraverse EUROBRIDGE-97

Astapenko¹,

Logvinov

2014

Geofizicheskiy Zhurnal

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Electrical structure of the upper mantle beneath Central Europe: Results of the CEMES project

Cited by 46 publications

References 34 publications

Deep Electromagnetic Studies from Land, Sea, and Space: Progress Status in the Past 10 Years

Deep Electromagnetic Studies from Land, Sea, and Space: Progress Status in the Past 10 Years

Improving of electrical channels for magnetotelluric sounding instrumentation

Geoelectric model of consolidated Earth's crust and upper mantle along the geotraverse EUROBRIDGE-97

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