Through analysis and generalization of more than 50 years of monitoring data pertaining to geomagnetic earthquake precursors in landfills across Uzbekistan involving repeated route and area surveys and stationary obse...Through analysis and generalization of more than 50 years of monitoring data pertaining to geomagnetic earthquake precursors in landfills across Uzbekistan involving repeated route and area surveys and stationary observations,as well as extensive data retrieved from the study of the complex in foreign countries,models of long-,medium-and short-term earthquake precursors were created for the first time.Medium-and short-term data were mainly studied based on monitoring data of the precursor complex considering geodynamic polygons in Uzbekistan.The analysis demonstrated that these precursors exhibit different shapes,configurations and signs.There occurred no uniform precursor form.Precursors exhibited bay-shaped forms,including both positive and negative signs,in addition to stepped,wave-oscillatory and other formats.The variety of manifestation forms primarily depends on the surrounding regions’geological and tectonic structures and the various processes in the Earth’s crust.展开更多
Based on the previous researches of geophysics and geodesy,this paper analyzes the geomagnetic field and surface vertical movement near the intersection of Karjantau and Tavaksay faults by using the highprecision magn...Based on the previous researches of geophysics and geodesy,this paper analyzes the geomagnetic field and surface vertical movement near the intersection of Karjantau and Tavaksay faults by using the highprecision magnetic survey technique.Due to the high accuracy of the magnetic survey technique,the magnetic anomalies associated with geological structures and discontinuities are revealed.The measurement results of high-precision total station show the vertical movement difference of observation points over 36 years.When processing the obtained data,the points(Ferma and Visota)are identified as the most mobile points in the Karjantau fault zone.At the points(Skala and Visota)in the north of the Karjantau fault,the observed settlements are-1 mm and-59 mm,respectively.At the southern geodetic observation points(Noviy,Kladbishi and Ferma),they are uplifted by 32 mm,11 mm and54 mm,respectively.Based on these data,we can see that in the Tavaksay geodynamic polygon area,the variation of vertical movement values around the Ferma and Visota points is greater than other places.The reason for this phenomenon is that the above points are located in the areas close to the deep Karjantau fault zone.展开更多
基金the financial support of the State Basic Research Development Program(2021)of the Committee for the Coordination of Science and Technology Development under the Ministry of Innovation of the Republic of Uzbekistan
文摘Through analysis and generalization of more than 50 years of monitoring data pertaining to geomagnetic earthquake precursors in landfills across Uzbekistan involving repeated route and area surveys and stationary observations,as well as extensive data retrieved from the study of the complex in foreign countries,models of long-,medium-and short-term earthquake precursors were created for the first time.Medium-and short-term data were mainly studied based on monitoring data of the precursor complex considering geodynamic polygons in Uzbekistan.The analysis demonstrated that these precursors exhibit different shapes,configurations and signs.There occurred no uniform precursor form.Precursors exhibited bay-shaped forms,including both positive and negative signs,in addition to stepped,wave-oscillatory and other formats.The variety of manifestation forms primarily depends on the surrounding regions’geological and tectonic structures and the various processes in the Earth’s crust.
基金supported by financial assistance from the Program of Development of State Applied Investigations(2016-2017 yy.and YP14-AST-007)of the Committee for Coordination of Science and Technology Development under the Ministry of innovative development of the Republic of Uzbekistan。
文摘Based on the previous researches of geophysics and geodesy,this paper analyzes the geomagnetic field and surface vertical movement near the intersection of Karjantau and Tavaksay faults by using the highprecision magnetic survey technique.Due to the high accuracy of the magnetic survey technique,the magnetic anomalies associated with geological structures and discontinuities are revealed.The measurement results of high-precision total station show the vertical movement difference of observation points over 36 years.When processing the obtained data,the points(Ferma and Visota)are identified as the most mobile points in the Karjantau fault zone.At the points(Skala and Visota)in the north of the Karjantau fault,the observed settlements are-1 mm and-59 mm,respectively.At the southern geodetic observation points(Noviy,Kladbishi and Ferma),they are uplifted by 32 mm,11 mm and54 mm,respectively.Based on these data,we can see that in the Tavaksay geodynamic polygon area,the variation of vertical movement values around the Ferma and Visota points is greater than other places.The reason for this phenomenon is that the above points are located in the areas close to the deep Karjantau fault zone.
