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Vol. 3 (2000 year), No. 2

Petrov S.I., Kremenetskaya E.O., Asming V.E., Kuzmin I.A., Nakhshina L.P.
Seismic monitoring and preliminary estimation of seismicity of the Verkhne-Tuloma Hydroelectric Plant district

The paper has considered the preliminary results of the researches of seismic activity of the Verkhne-Tuloma hydroelectric plant district characterised by a composite geological structure with a net of repeatedly activized faults of different age, that means the possibility of heightened seismicity. Some historical information about the seismic activity of the district have proved this fact. Besides, in the work some methodical aspects of seismological researches of seismomonitoring peculiarities under the conditions of the global technological anthropological influence on the surface of the Earth crust have been presented. In the last section the modern system of the seismoactivity monitoring of the Kola Peninsula has been analysed.

(in Russian, стр.6, fig. 4, tables. 0, ref 12, MS Word 95, MS Word 95 200 Kb)

Vol. 11 (2008 year), No. 3

Asming V.E., Vinogradov Yu.A., Evtyugina Z.A., Kremenetskaya E.O., Prokudina A.V.
On results of observations on the Apatity infrasound complex

The geo-cemented stone on basis of the magnesium-ferrous slag and alkaline silicate solution has been obtained. It has been proved that ferriferous layered hydro alumina silicates (nontronite, limonite) and hydro pomegranates are formed as a result of hardening astringent based on the thin-grinding low slag and alkaline silicates' solution. Presence of water-resistant rock-forming silicate materials provides endurance of the cemented stone. The sorption properties of the synthesized materials from modeling solutions and real technological waste water of one of the Murmansk region enterprises have been studied. The saturated (by radionuclides) geo-cemented stone has been immobilized in the geo-polymeric cement structure. Tests on radionuclide lixiviation from the prepared compounds have been carried out. The lixiviation velocity has been proved to be considerably below normative requirements.

(in Russian, стр.7, fig. 9, tables. 0, ref 4, Adobe PDF, Adobe PDF 0 Kb)

Vol. 13 (2010 year), No. 4

Asming V.E., Kremenetskaya E.O., Vinogradov Yu.A., Evtyugina Z.A.
Criteria of explosions and earthquakes identification for estimation of seismic danger of the region

The system of seismic monitoring of the Kola Peninsula and adjacent areas has been described. Criteria of discrimination of explosions and earthquakes have been considered. It is shown that P/S body waves amplitudes ratio that is commonly used for explosion and earthquakes discrimination is not reliable in some cases. It is noticed that spectra of many man-caused seismic events vary slowly in time. A quantitative estimation of a spectrum variance in time has been developed. It can be used as a criterion of man-made events discrimination. Infrasonic signals registered by microbarographs and seismometers after seismic events confirm their explosive origin. Taking into account the criteria we have revised our data base of earthquakes. As a result of retrospective (since 1992) analysis of seismic events of the base an improved picture of seismic activity on the Kola Peninsula and adjacent areas has been developed.

(in Russian, стр.10, fig. 11, tables. 2, ref 3, Adobe PDF, Adobe PDF 0 Kb)