Results 11 to 20 of about 57 (55)
Journal of geomagnetism and geoelectricity, 1978 The effects of hydrostatic pressure up to 2.7 kb on the susceptibility of magnetite single crystals, rocks and ore, and synthetic samples were studied. Susceptibility was measured using both static and alternating-frequency methods, with cyclic change of hydrostatic pressure and with time-dependent experiments.
A. A. NULMAN +5 more
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Contamination due to the tidal movement of sea-water in tectonomagnetic data.
Journal of geomagnetism and geoelectricity, 1985 Geomagnetic observations have intensively been carried out since 1976 in the Izu Peninsula, Japan, in an attempt to search for precursory and coseismic changes in the geomagnetic field. In order to enhance the significance of such changes, it is indispensable to clarify noises in the observed geomagnetic field.
N. OHSHIMAN, Y. HONKURA
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The development of the INGV tectonomagnetic network in the frame of the MEM Project [PDF]
Natural Hazards and Earth System Sciences, 2007 Abstract. In the middle of 1989, the INGV (Italian Istituto Nazionale di Geofisica e Vulcanologia) installed in Central Italy a network of magnetic stations in order to investigate possible relationship of the local magnetic field with earthquakes occurrences. Actually the network consists of four stations, where the total magnetic field intensity data
Masci, F. +3 more
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Results and perspectives of tectonomagnetic investigations in the Western Antarctic
Annals of Geophysics, 2009 The results of long-term (1998-2005 yrs.) tectonomagnetic investigations in the Western Antarctic near the location of Ukrainian Antarctic Station «Academic Vernadsky» are reviewed. The peculiarities of the Earth’s anomalous magnetic field and its dynamic temporal variations (tectonomagnetic anomalies) were studied using the newly founded ...
Ihor O. Chobotok +3 more
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Loop Antenna Characterization for ELF and SLF Measurements
Revista Elektrón, 2018 Electromagnetic Fields are present in the Earth, due both to natural and artificial emissions. The Electric and Magnetic fields generated by natural events like volcanic eruptions and earthquakes, are aspects of tectonomagnetism, volcanomagnetism and ...
Gonzalo Iñaki Quintana +2 more
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Piezomagnetic response with depth, related to tectonomagnetism as an earthquake precursor.
Journal of geomagnetism and geoelectricity, 1978 Piezomagnetic field variations can result from tectonic stress changes in the focal zone of an impending earthquake. Interpretation of such observed tectonomagnetic effects requires modeling of the stress response of magnetic properties of the lithosphere.
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Tectonomagnetic Signals Related to the Seismo-Volcanic Activity in the Izu Peninsula.
Journal of Physics of the Earth, 1991 Results of magnetic observations in the eastern Izu Peninsula for the past decade (1980-1990) are summarized. For the period from 1980 to 1983, the geomagnetic total intensity remained constant or slightly increased. Steep increase in the total intensity occured at three stations (SGH, YSD, and HAT) successively in 1982, when the center of uplift ...
Yoichi Sasai, Yoshinobu Ishikawa
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Tectonomagnetic study in the eastern part of Hokkaido, NE Japan: Discrepancy between observed and calculated results [PDF]
Earth, Planets and Space, 2014 ¶Continuous and repeated geomagnetic observations have been performed at 8 stations in the eastern part of Hokkaido, NE Japan, to confirm a detailed picture of geomagnetic secular changes. The observation delineated anomalously large secular changes of about 1 nT/year that have lasted at least for about 3 to 30 years (depending on the period of ...
Nishida, Yasunori +4 more
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A comparison of proton and self-calibrating rubidium magnetometers for tectonomagnetic studies.
Journal of geomagnetism and geoelectricity, 1985 A network of 27 proton magnetometers (PM's), designed to detect stress related magnetic events of crustal origin, has been operating near active faults in California for the past decade. We present here comparative magnetic difference field data from PM's used in this net with that obtained from new self-calibrating rubidium magnetometers (SCR's).
Randolph H. WARE +2 more
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Tectonomagnetic modeling based on the piezomagnetism: a review
Annals of Geophysics, 2001 Development of tectonomagnetic modeling on the basis of the piezomagnetic effect is reviewed for the period since the early 1990's. First, the basic theory is briefly summarized, in which the representation theorem or the surface integral representation for the piezomagnetic potential and the Green's function method are presented.
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