Vladimir Zhamoida - Academia.edu (original) (raw)
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Papers by Vladimir Zhamoida
Geomorfologiâ i paleogeografiâ, Jul 1, 2023
Deleted Journal, Mar 13, 2024
Doklady earth sciences, Dec 1, 2023
Doklady Earth Sciences, Sep 10, 2023
Doklady earth sciences, Jul 1, 2023
Региональная геология и металлогения, 2013
ГЕОЛОГО-ГЕОМОРФОЛОГИЧЕСКИЕ УСЛОВИЯ ФОРМИРОВАНИЯ ПОК-МАКОВ В ВОСТОЧНОЙ ЧАСТИ ФИНСКОГО ЗАЛИВА В 200... more ГЕОЛОГО-ГЕОМОРФОЛОГИЧЕСКИЕ УСЛОВИЯ ФОРМИРОВАНИЯ ПОК-МАКОВ В ВОСТОЧНОЙ ЧАСТИ ФИНСКОГО ЗАЛИВА В 2009-2012 гг. в ходе работ по мониторингу состояния геологической среды дна восточной части Финского залива ВСЕГЕИ получены новые материалы о распространении пок-маков и геолого-геоморфологических условиях их формирования. Установлено широкое распространение пок-маков, имеющих, несмотря на морфологическое сходство, различный генезис. Появление пок-маков в областях аккумуляции алевропелитовых илов в центральной части исследованной площади обусловлено выходами современных биогенных газов, в Копорском заливе-предположительно разгрузкой подземных вод Вендского водоносного комплекса, хотя не исключена их связь с тектоническими нарушениями. Наличие разновозрастных генераций пок-маков указывает на пульсационный характер их возникновения. Ключевые слова: пок-мак, газонасыщенные осадки, Финский залив. In 2009-2012 new data concerning distribution of pock-marks in the eastern Gulf of Finland as well as geological and geomorphologic conditions of their formation were gathered within the monitoring of geological environments. Pock-marks of the different genesis are widespread in the gulf bottom. The pock-marks discovered within the areas of silty-clayey sedimentation in the central part of the gulf were formed as a result of biogenic gas-seepage. In the Kopora Bay pock-marks were probably formed as a result of groundwater discharge from the Vendian aquifer system, although it is possible to find some spatial correlation with tectonic faults distribution. The presence of pock-marks of several generations indicates pulsating nature of their occurrence.
Geomorfologiâ, Jul 24, 2015
The handbook of environmental chemistry, 2017
Amber is one of the most valuable mineral resources of the Kaliningrad Region. It is mined by sev... more Amber is one of the most valuable mineral resources of the Kaliningrad Region. It is mined by several methods, both open and closed, on sea and on land; the vast majority of this type of amber world reserves is located on the Sambian Peninsula and its continental slope. Nevertheless, geological research of amber deposits still did not carry out up to sufficient rate.
Lithology and Mineral Resources, May 1, 2017
⎯Geological-geophysical methods were applied to provide deeper insight into the nature of unique ... more ⎯Geological-geophysical methods were applied to provide deeper insight into the nature of unique relict lagoonal sediments exposed on the underwater slope of the Curonian Spit. The study of textural features and morphology of the deformed lagoonal sediments indicates a similarity of their formation mechanism with clay diapirism. Analysis of seismoacoustic data and side scan sonar survey allowed us to establish the configuration of paleolagoon and to determine the direction of dune migration in the past.
The handbook of environmental chemistry, 2017
While relatively small in size, the Kaliningrad region has abundant deposits of minerals, many of... more While relatively small in size, the Kaliningrad region has abundant deposits of minerals, many of which are actively exploited (amber, oil, peat, building materials, mineral waters and muds). There are, however, other mineral resources that can be developed here, and some are already being prepared for exploitation (rock salt, potassium and magnesium salts). But any extraction of minerals in a small, economically developed area with unique natural resources requires an assessment of potential risks to the environment. Implementing mine reclamation measures is mandatory. No new fields can be developed without an approval from the community of citizens obtained during public hearings.
International Journal of Salt Lake Research, Mar 1, 1997
A survey of recent bottom sediments in the Northern Aral Sea was undertaken to elucidate the main... more A survey of recent bottom sediments in the Northern Aral Sea was undertaken to elucidate the main direction of the alteration of sedimentation processes as a result of the significant decrease in the level of the sea from the beginning of the 1960s. Investigations were carded out in August-September 1991 from on board helicopter MI-8 MTV-1 which was equipped with the navigation system "LORAN-OMEGA". Sediments were sampled by means of ~gravity coring and grab sampling. The frequency of sampling was about 1 station per 10 km\ At several sites, water samples were collected. Grain-size analysis was undertaken and the mineralogy of the sediments was determined by optical means, using an SEM energy dispersive X-ray microanalysis, and X-ray diffractometry using a DRON-2.0 diffractometer.
Региональная геология и металлогения, 2021
Boreas
This paper presents the results of high‐resolution sedimentological analyses of sediment cores fr... more This paper presents the results of high‐resolution sedimentological analyses of sediment cores from the eastern Gulf of Finland (Baltic Sea). Sampling sites in the periphery of sedimentary basins were selected on the basis of acoustic profiling analyses. The research allowed tracing of the transition from the freshwater Ancylus Lake to the Littorina Sea. A specific transitional layer of ‘blue clays’, indicating the first stage of brackish water inflow into the Gulf of Finland, was dated to 9.1 ka BP. The date of first appearance of Littorina silty clay sedimentation was as follows: from 8.0 ka BP near Gogland Island, from 7.0 ka BP near Moshchny Island and from 5.9 ka BP near the Berezovye Islands. Holocene cycles of hypoxia, associated with periods of warming, were identified and cycles of ‘warming – transgression – anoxic conditions’ and ‘cooling – regression – oxygen‐rich conditions’ were revealed. During the first stage of Littorina transgression (8.0–7.0 ka BP), the near‐bottom...
Materials of XXVII International Coastal Conference "Arctic shores: shore-up to sustainability", 2019
Engineering and Mining Geophysics 2019 15th Conference and Exhibition, 2019
Geomorfologiâ i paleogeografiâ, Jul 1, 2023
Deleted Journal, Mar 13, 2024
Doklady earth sciences, Dec 1, 2023
Doklady Earth Sciences, Sep 10, 2023
Doklady earth sciences, Jul 1, 2023
Региональная геология и металлогения, 2013
ГЕОЛОГО-ГЕОМОРФОЛОГИЧЕСКИЕ УСЛОВИЯ ФОРМИРОВАНИЯ ПОК-МАКОВ В ВОСТОЧНОЙ ЧАСТИ ФИНСКОГО ЗАЛИВА В 200... more ГЕОЛОГО-ГЕОМОРФОЛОГИЧЕСКИЕ УСЛОВИЯ ФОРМИРОВАНИЯ ПОК-МАКОВ В ВОСТОЧНОЙ ЧАСТИ ФИНСКОГО ЗАЛИВА В 2009-2012 гг. в ходе работ по мониторингу состояния геологической среды дна восточной части Финского залива ВСЕГЕИ получены новые материалы о распространении пок-маков и геолого-геоморфологических условиях их формирования. Установлено широкое распространение пок-маков, имеющих, несмотря на морфологическое сходство, различный генезис. Появление пок-маков в областях аккумуляции алевропелитовых илов в центральной части исследованной площади обусловлено выходами современных биогенных газов, в Копорском заливе-предположительно разгрузкой подземных вод Вендского водоносного комплекса, хотя не исключена их связь с тектоническими нарушениями. Наличие разновозрастных генераций пок-маков указывает на пульсационный характер их возникновения. Ключевые слова: пок-мак, газонасыщенные осадки, Финский залив. In 2009-2012 new data concerning distribution of pock-marks in the eastern Gulf of Finland as well as geological and geomorphologic conditions of their formation were gathered within the monitoring of geological environments. Pock-marks of the different genesis are widespread in the gulf bottom. The pock-marks discovered within the areas of silty-clayey sedimentation in the central part of the gulf were formed as a result of biogenic gas-seepage. In the Kopora Bay pock-marks were probably formed as a result of groundwater discharge from the Vendian aquifer system, although it is possible to find some spatial correlation with tectonic faults distribution. The presence of pock-marks of several generations indicates pulsating nature of their occurrence.
Geomorfologiâ, Jul 24, 2015
The handbook of environmental chemistry, 2017
Amber is one of the most valuable mineral resources of the Kaliningrad Region. It is mined by sev... more Amber is one of the most valuable mineral resources of the Kaliningrad Region. It is mined by several methods, both open and closed, on sea and on land; the vast majority of this type of amber world reserves is located on the Sambian Peninsula and its continental slope. Nevertheless, geological research of amber deposits still did not carry out up to sufficient rate.
Lithology and Mineral Resources, May 1, 2017
⎯Geological-geophysical methods were applied to provide deeper insight into the nature of unique ... more ⎯Geological-geophysical methods were applied to provide deeper insight into the nature of unique relict lagoonal sediments exposed on the underwater slope of the Curonian Spit. The study of textural features and morphology of the deformed lagoonal sediments indicates a similarity of their formation mechanism with clay diapirism. Analysis of seismoacoustic data and side scan sonar survey allowed us to establish the configuration of paleolagoon and to determine the direction of dune migration in the past.
The handbook of environmental chemistry, 2017
While relatively small in size, the Kaliningrad region has abundant deposits of minerals, many of... more While relatively small in size, the Kaliningrad region has abundant deposits of minerals, many of which are actively exploited (amber, oil, peat, building materials, mineral waters and muds). There are, however, other mineral resources that can be developed here, and some are already being prepared for exploitation (rock salt, potassium and magnesium salts). But any extraction of minerals in a small, economically developed area with unique natural resources requires an assessment of potential risks to the environment. Implementing mine reclamation measures is mandatory. No new fields can be developed without an approval from the community of citizens obtained during public hearings.
International Journal of Salt Lake Research, Mar 1, 1997
A survey of recent bottom sediments in the Northern Aral Sea was undertaken to elucidate the main... more A survey of recent bottom sediments in the Northern Aral Sea was undertaken to elucidate the main direction of the alteration of sedimentation processes as a result of the significant decrease in the level of the sea from the beginning of the 1960s. Investigations were carded out in August-September 1991 from on board helicopter MI-8 MTV-1 which was equipped with the navigation system "LORAN-OMEGA". Sediments were sampled by means of ~gravity coring and grab sampling. The frequency of sampling was about 1 station per 10 km\ At several sites, water samples were collected. Grain-size analysis was undertaken and the mineralogy of the sediments was determined by optical means, using an SEM energy dispersive X-ray microanalysis, and X-ray diffractometry using a DRON-2.0 diffractometer.
Региональная геология и металлогения, 2021
Boreas
This paper presents the results of high‐resolution sedimentological analyses of sediment cores fr... more This paper presents the results of high‐resolution sedimentological analyses of sediment cores from the eastern Gulf of Finland (Baltic Sea). Sampling sites in the periphery of sedimentary basins were selected on the basis of acoustic profiling analyses. The research allowed tracing of the transition from the freshwater Ancylus Lake to the Littorina Sea. A specific transitional layer of ‘blue clays’, indicating the first stage of brackish water inflow into the Gulf of Finland, was dated to 9.1 ka BP. The date of first appearance of Littorina silty clay sedimentation was as follows: from 8.0 ka BP near Gogland Island, from 7.0 ka BP near Moshchny Island and from 5.9 ka BP near the Berezovye Islands. Holocene cycles of hypoxia, associated with periods of warming, were identified and cycles of ‘warming – transgression – anoxic conditions’ and ‘cooling – regression – oxygen‐rich conditions’ were revealed. During the first stage of Littorina transgression (8.0–7.0 ka BP), the near‐bottom...
Materials of XXVII International Coastal Conference "Arctic shores: shore-up to sustainability", 2019
Engineering and Mining Geophysics 2019 15th Conference and Exhibition, 2019