Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula
The Kandalaksha-Bothnian deep fault is the subject of a comprehensive geological and geophysical study in connection with the development of the Shtokman gas field on the Kola Peninsula. In the process of studying the structure and seismicity of the near-surface zone of the earth's crust in the vicinity of the route of the planned Shtokman – Volkhov gas pipeline, the following have been carried out: 1) lineament analysis of the topographic map where the lines of the supposed faults were plotted, corresponding to the beds of the largest rivers, large streams, elongated lakes and bays; 2) analysis of the geological profile along the class I levelling line; 3) comparison of the lineament analysis results with the results of the geological profile analysis along the levelling line. When determining seismic risks, the sources of earthquakes occurred in the study area have been mapped; the impact of recorded earthquakes on the designed pipeline has been estimated and seismic intensity has been calculated at the point of the pipeline route design closest to the earthquake epicenter. Georadar studies of areas of the Kandalaksha seismogenic zone, interpretation and analysis of the obtained radarograms have made it possible to identify lineaments that coincide in location with faults, subsurface boundaries indicated on the geological section, outline the layers of bulk and natural soils and rocks with high accuracy and identify areas with anomalous physical and mechanical properties, fracture zones, as well as the boundary of the rocky base under the moraine and to conclude that the earthquakes occurred theoretically would not have had a significant impact on the projected pipeline. Thus, it is possible to carry out industrial construction in the study area (including linearly extended objects), taking into account the limitations caused by the Kandalaksha-Botnichsky deep fault seismicity indices obtained during georadar analysis.
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Format: | Journal Contribution biblioteca |
Language: | Russian |
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2020
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Subjects: | Lineaments, Geological profile, Ground penetrating radar, Линеаменты, Геологический профиль, Сейсмичность, Георадиолокация, ASFA_2015::G::Geology, ASFA_2015::S::Seismicity, |
Online Access: | http://hdl.handle.net/1834/41524 |
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Lineaments Geological profile Ground penetrating radar Линеаменты Геологический профиль Сейсмичность Георадиолокация ASFA_2015::G::Geology ASFA_2015::S::Seismicity Lineaments Geological profile Ground penetrating radar Линеаменты Геологический профиль Сейсмичность Георадиолокация ASFA_2015::G::Geology ASFA_2015::S::Seismicity |
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Lineaments Geological profile Ground penetrating radar Линеаменты Геологический профиль Сейсмичность Георадиолокация ASFA_2015::G::Geology ASFA_2015::S::Seismicity Lineaments Geological profile Ground penetrating radar Линеаменты Геологический профиль Сейсмичность Георадиолокация ASFA_2015::G::Geology ASFA_2015::S::Seismicity Demakhin, A.Yu. Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula |
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The Kandalaksha-Bothnian deep fault is the subject of a comprehensive geological and geophysical study in connection with the development of the Shtokman gas field on the Kola Peninsula. In the process of studying the structure and seismicity of the near-surface zone of the earth's crust in the vicinity of the route of the planned Shtokman – Volkhov gas pipeline, the following have been carried out: 1) lineament analysis of the topographic map where the lines of the supposed faults were plotted, corresponding to the beds of the largest rivers, large streams, elongated lakes and bays; 2) analysis of the geological profile along the class I levelling line; 3) comparison of the lineament analysis results with the results of the geological profile analysis along the levelling line. When determining seismic risks, the sources of earthquakes occurred in the study area have been mapped; the impact of recorded earthquakes on the designed pipeline has been estimated and seismic intensity has been calculated at the point of the pipeline route design closest to the earthquake epicenter. Georadar studies of areas of the Kandalaksha seismogenic zone, interpretation and analysis of the obtained radarograms have made it possible to identify lineaments that coincide in location with faults, subsurface boundaries indicated on the geological section, outline the layers of bulk and natural soils and rocks with high accuracy and identify areas with anomalous physical and mechanical properties, fracture zones, as well as the boundary of the rocky base under the moraine and to conclude that the earthquakes occurred theoretically would not have had a significant impact on the projected pipeline. Thus, it is possible to carry out industrial construction in the study area (including linearly extended objects), taking into account the limitations caused by the Kandalaksha-Botnichsky deep fault seismicity indices obtained during georadar analysis. |
format |
Journal Contribution |
topic_facet |
Lineaments Geological profile Ground penetrating radar Линеаменты Геологический профиль Сейсмичность Георадиолокация ASFA_2015::G::Geology ASFA_2015::S::Seismicity |
author |
Demakhin, A.Yu. |
author_facet |
Demakhin, A.Yu. |
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Demakhin, A.Yu. |
title |
Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula |
title_short |
Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula |
title_full |
Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula |
title_fullStr |
Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula |
title_full_unstemmed |
Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula |
title_sort |
study of the structure and seismicity of the near-surface zone of the earth's crust at the white sea seismogenic zone on the kola peninsula |
publishDate |
2020 |
url |
http://hdl.handle.net/1834/41524 |
work_keys_str_mv |
AT demakhinayu studyofthestructureandseismicityofthenearsurfacezoneoftheearthscrustatthewhiteseaseismogeniczoneonthekolapeninsula AT demakhinayu issledovaniestrukturyisejsmičnostipripoverhnostnojzonyzemnojkoryučastkovbelomorskojsejsmogennojzonynakolʹskompoluostrove |
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dig-aquadocs-1834-415242021-10-21T03:31:50Z Study of the structure and seismicity of the near-surface zone of the earth's crust at the White Sea seismogenic zone on the Kola Peninsula Исследование структуры и сейсмичности приповерхностной зоны земной коры участков Беломорской сейсмогенной зоны на Кольском полуострове Demakhin, A.Yu. Lineaments Geological profile Ground penetrating radar Линеаменты Геологический профиль Сейсмичность Георадиолокация ASFA_2015::G::Geology ASFA_2015::S::Seismicity The Kandalaksha-Bothnian deep fault is the subject of a comprehensive geological and geophysical study in connection with the development of the Shtokman gas field on the Kola Peninsula. In the process of studying the structure and seismicity of the near-surface zone of the earth's crust in the vicinity of the route of the planned Shtokman – Volkhov gas pipeline, the following have been carried out: 1) lineament analysis of the topographic map where the lines of the supposed faults were plotted, corresponding to the beds of the largest rivers, large streams, elongated lakes and bays; 2) analysis of the geological profile along the class I levelling line; 3) comparison of the lineament analysis results with the results of the geological profile analysis along the levelling line. When determining seismic risks, the sources of earthquakes occurred in the study area have been mapped; the impact of recorded earthquakes on the designed pipeline has been estimated and seismic intensity has been calculated at the point of the pipeline route design closest to the earthquake epicenter. Georadar studies of areas of the Kandalaksha seismogenic zone, interpretation and analysis of the obtained radarograms have made it possible to identify lineaments that coincide in location with faults, subsurface boundaries indicated on the geological section, outline the layers of bulk and natural soils and rocks with high accuracy and identify areas with anomalous physical and mechanical properties, fracture zones, as well as the boundary of the rocky base under the moraine and to conclude that the earthquakes occurred theoretically would not have had a significant impact on the projected pipeline. Thus, it is possible to carry out industrial construction in the study area (including linearly extended objects), taking into account the limitations caused by the Kandalaksha-Botnichsky deep fault seismicity indices obtained during georadar analysis. Кандалакшско-Ботнический глубинный разлом является объектом комплексного геолого-геофизического исследования в связи с освоением Штокмановского газового месторождения на Кольском полуострове. В процессе изучения структуры и сейсмичности приповерхностной зоны земной коры в районе трассы проектируемого магистрального газопровода Штокман – Волхов проведены: 1) линеаментный анализ топографической карты, на которую были нанесены линии предполагаемых разломов, соответствующие руслам наиболее крупных рек, крупных ручьев, озерам, заливам; 2) анализ геологического разреза по линии нивелирования I класса; 3) сопоставление результатов линеаментного анализа с результатами анализа геологического разреза по линии нивелирования. При определении сейсмических рисков на карту нанесены очаги землетрясений, произошедших в районе исследований; дана оценка воздействия зарегистрированных землетрясений на проектируемый трубопровод и произведен расчет сейсмической интенсивности в ближайшей от эпицентра землетрясения точке проекта трассы трубопровода. Георадиолокационные исследования участков Кандалакшской сейсмогенной зоны, интерпретация и анализ полученных радарограмм позволили выделить линеаменты, совпадающие по локализации с разломами, подповерхностными границами, обозначенными на геологическом разрезе, с высокой точностью оконтурить слои насыпных и природных грунтов и пород и идентифицировать участки с аномальными физико-механическими свойствами, приразломные зоны, а также границу скального основания под мореной и сделать вывод о том, что произошедшие землетрясения не оказали бы значимого воздействия на проектируемый трубопровод. Таким образом, в исследованном районе возможно осуществление промышленного строительства (в том числе линейно-протяженных объектов) с учетом ограничений, обусловленных полученными в ходе георадиолокационного анализа показателями сейсмичности Кандалакшско-Ботнического глубинного разлома. Published Refereed 2021-10-20T06:57:40Z 2021-10-20T06:57:40Z 2020 Journal Contribution http://hdl.handle.net/1834/41524 ru http://vestnik.mstu.edu.ru/show-eng.shtml?art=2046 http://vestnik.mstu.edu.ru/show.shtml?art=2046 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ pp.5-12 Kola Peninsula Кольский полуостров White Sea Белое море |