Description: A northern and east-northern parts of Kazakstan Republic are utterly favorable for a placing of seismic stations. There is a very low level of natural and industrial seismic noise. Rocks of Kazakh epi-Hercynian platform have a very good transmissive properties. Geophysical observatories (GOs), now belonging to the Institute of Geophysical Researches of National Nuclear Center of Kazakstan Republic (IGR NNC RK), were established in especially selected low-noise places of Northern Kazakstan, in accordance with Soviet program for nuclear weapons test monitoring. In 1994, these GOs were transferred by Russian Federation into the possession of Kazakstan. A location of GOs is shown on the Fig. 1. According to the studying of seismic noises, jointly implemented by scientists from IGR and IRIS, places, where a `Borovoye` and `Kurchatov` seismic stations are located, are among the best places for seismic observations in the world. A seismic arrays exist in `Borovoye` and `Kurchatov` observatories - in two observatories out four (`Aktiubinsk`, `Borovoye`, `Kurchatov` and `Makanchi`). These two observatories are described in this report. A history of geophysical observatories, conditions of equipment operations (climatic, geological and so on) are presented in this report, as well as it is described the equipment of GOs and seismic arrays, and samples of digital seismograms, recorded on the equipment of various types, are presented in this report. GO `Borovoye` is described in the 2nd chart, GO `Kurchatov` is described in the 3rd chart of the report. The main results of work are presented in the conclusion. A list of used papers, a list of tables and figures is given in the end of the report. 14 refs., 95 figs., 12 tabs.
Date: December 1, 1996
Creator: Bushueva, E.A.; Ermolenko, E.A. & Efremova, N.A.
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