Pub Date : 2021-09-30DOI: 10.34078/1814-0998-2021-3-44-55
P. S. Minyuk
Holocene sediments of the Kuril Archipelago lakes (Pernatoye, Paramushir Island; Tokatan, Urup Island; Maloye and Kasatka, Iturup Island) were studied. The sediments consist of freshwater lake, lagoon, and marine facies. Pyrite is most often found in sediments of lagoon and marine facies, being their indicator. It is found as separate spheroids and clusters of framboidal structure. Pyrite aggregates fill up diatom valves. Valves were filled with pyrite gradually.
{"title":"Пирит в осадках озер Курильских островов","authors":"P. S. Minyuk","doi":"10.34078/1814-0998-2021-3-44-55","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-3-44-55","url":null,"abstract":"Holocene sediments of the Kuril Archipelago lakes (Pernatoye, Paramushir Island; Tokatan, Urup Island; Maloye and Kasatka, Iturup Island) were studied. The sediments consist of freshwater lake, lagoon, and marine facies. Pyrite is most often found in sediments of lagoon and marine facies, being their indicator. It is found as separate spheroids and clusters of framboidal structure. Pyrite aggregates fill up diatom valves. Valves were filled with pyrite gradually.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125295904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.34078/1814-0998-2021-3-90-96
E. A. Dubinin
The age-related variability of the abrasion degree of the masticatory surface of the first lower molar in the Northern Priokhotye population of the Siberian chipmunk has been studied. It has been revealed that, in young of the current year, from the time they abandoning breeding burrows to the hibernation period, the index of abrasion of the masticatory surface m1 is 0.6-3.5 %. The area of exposed dentin on the molar masticatory surface increases annually by 5-6 % averagely in overwintered adult animals. According to the abrasion index, 4-5 age classes are distinguished in the population. The group of animals aged 1+ yrs dominates in number (40.8 %). The specific survival rate of individuals in the range from 1 to 3 years is approximately 0.5. After three years, it drops sharply (0.23). Less than 3 % of individuals survive up to 4 years or more in the population.
{"title":"Возрастная структура популяции азиатского бурундука (Tamias sibiricus) в Северном Приохотье","authors":"E. A. Dubinin","doi":"10.34078/1814-0998-2021-3-90-96","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-3-90-96","url":null,"abstract":"The age-related variability of the abrasion degree of the masticatory surface of the first lower molar in the Northern Priokhotye population of the Siberian chipmunk has been studied. It has been revealed that, in young of the current year, from the time they abandoning breeding burrows to the hibernation period, the index of abrasion of the masticatory surface m1 is 0.6-3.5 %. The area of exposed dentin on the molar masticatory surface increases annually by 5-6 % averagely in overwintered adult animals. According to the abrasion index, 4-5 age classes are distinguished in the population. The group of animals aged 1+ yrs dominates in number (40.8 %). The specific survival rate of individuals in the range from 1 to 3 years is approximately 0.5. After three years, it drops sharply (0.23). Less than 3 % of individuals survive up to 4 years or more in the population.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121165147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-30DOI: 10.34078/1814-0998-2021-3-82-89
I. M. Khasanov, L. Muravyev
The global databases of gravity anomalies, currently available to researchers, provide a new informative tool for constructing density models of the deep structure of the earth's crust for individual regions. Currently, there are six models of gravitational anomalies, presented as a series of spherical harmonics up to 2190 degrees, which corresponds to about 10 km on the earth's surface. Different methods of processing terrestrial, marine, aerial, and satellite gravimetric data, available to their authors, determine the differences between these models, both on a global scale and within specific regions. We have performed a comparison of the EGM2008, GECO, EIGEN-6C4, and WGM2012 models with the Gravimag database on the Magadan Oblast territory. The comparison showed that free air anomalies for the EGM2008, GECO, EIGEN-6C4, and WGM2012 models in the selected area almost coincide. Bouguer anomalies of the WGM2012 model can be used in regional density modeling for adjacent regions where there are no conventional ground gravity data; however, within Magadan Oblast the Gravimag database has the best data quality.
{"title":"Сравнение глобальных моделей гравитационного поля на территории Магаданской области","authors":"I. M. Khasanov, L. Muravyev","doi":"10.34078/1814-0998-2021-3-82-89","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-3-82-89","url":null,"abstract":"The global databases of gravity anomalies, currently available to researchers, provide a new informative tool for constructing density models of the deep structure of the earth's crust for individual regions. Currently, there are six models of gravitational anomalies, presented as a series of spherical harmonics up to 2190 degrees, which corresponds to about 10 km on the earth's surface. Different methods of processing terrestrial, marine, aerial, and satellite gravimetric data, available to their authors, determine the differences between these models, both on a global scale and within specific regions. We have performed a comparison of the EGM2008, GECO, EIGEN-6C4, and WGM2012 models with the Gravimag database on the Magadan Oblast territory. The comparison showed that free air anomalies for the EGM2008, GECO, EIGEN-6C4, and WGM2012 models in the selected area almost coincide. Bouguer anomalies of the WGM2012 model can be used in regional density modeling for adjacent regions where there are no conventional ground gravity data; however, within Magadan Oblast the Gravimag database has the best data quality.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122452377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-41-49
V. S. Shkodzinskiy
The obtained numerous proofs of hot heterogeneous accretion of the Earth lead to a fundamentally new solution of the magma genesis problem. According to these data, in the course of the silicate mantle accretion, the global magmatic ocean emerged under the impact heat emission. Its bottom part crystallized and fractionated as a result of the pressure increase of the upper parts being formed. Cumulates formed the ultrabasic mantle; residual melts, the magmatic ocean. The increase in ocean temperature and depth caused the evolution of bottom residual melts from acidic to ultrabasic, the appearance of corresponding layers in the ocean, and the reverse geothermal gradient in the mantle. The top-down cooling and crystallization of the ocean, 3.8 billion years ago, Early Precambrian crystal complexes, acidic crust, and the lithosphere of ancient platforms were formed. The separation of residual melts from various layers determined the evolution of magmatism from acidic to alkaline-ultramafic and kimberlite. Heating of the mantle by a high-temperature core resulted in the appearance of a direct geothermal gradient at the end of the Proterozoic, convection in the mantle, and modern geodynamic environments. In the latter, magmas are formed by the frictional and decompression remelting of the magmatic ocean differentiates.
{"title":"Генезис магм с позиции горячей гетерогенной аккреции Земли","authors":"V. S. Shkodzinskiy","doi":"10.34078/1814-0998-2021-2-41-49","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-41-49","url":null,"abstract":"The obtained numerous proofs of hot heterogeneous accretion of the Earth lead to a fundamentally new solution of the magma genesis problem. According to these data, in the course of the silicate mantle accretion, the global magmatic ocean emerged under the impact heat emission. Its bottom part crystallized and fractionated as a result of the pressure increase of the upper parts being formed. Cumulates formed the ultrabasic mantle; residual melts, the magmatic ocean. The increase in ocean temperature and depth caused the evolution of bottom residual melts from acidic to ultrabasic, the appearance of corresponding layers in the ocean, and the reverse geothermal gradient in the mantle. The top-down cooling and crystallization of the ocean, 3.8 billion years ago, Early Precambrian crystal complexes, acidic crust, and the lithosphere of ancient platforms were formed. The separation of residual melts from various layers determined the evolution of magmatism from acidic to alkaline-ultramafic and kimberlite. Heating of the mantle by a high-temperature core resulted in the appearance of a direct geothermal gradient at the end of the Proterozoic, convection in the mantle, and modern geodynamic environments. In the latter, magmas are formed by the frictional and decompression remelting of the magmatic ocean differentiates.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123825620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-17-30
V. Stepanov, V. Y. Kungurova
A comparative description of two sulfide copper-nickel deposits confined to the middle massifs is given: Aguablanca (Iberian Massif, Spain) and Shanuch (Kamchatka Massif, Russia). It was shown that both deposits are spatially and genetically related to small intrusions and dikes of mostly basic composition. Ore bodies are funnel-shaped, lenticular, stock-shaped, and vein-like, and are spread to significant depths. Both deposits contain rich sulfide copper-nickel ores as well as relatively poor; the ore texture is predominantly breccia or massive, seldom disseminated. Ore mineral composition includes pyrrhotite, pentlandite, and chalcopyrite with an insignificant admixture of minerals of the platinum group elements and gold. The ore bodies were topped with an "iron hat", which was the main sign of copper-nickel mineralization at depth.
{"title":"Сульфидные медно-никелевые месторождения в срединных массивах Пиренейского полуострова и Камчатки","authors":"V. Stepanov, V. Y. Kungurova","doi":"10.34078/1814-0998-2021-2-17-30","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-17-30","url":null,"abstract":"A comparative description of two sulfide copper-nickel deposits confined to the middle massifs is given: Aguablanca (Iberian Massif, Spain) and Shanuch (Kamchatka Massif, Russia). It was shown that both deposits are spatially and genetically related to small intrusions and dikes of mostly basic composition. Ore bodies are funnel-shaped, lenticular, stock-shaped, and vein-like, and are spread to significant depths. Both deposits contain rich sulfide copper-nickel ores as well as relatively poor; the ore texture is predominantly breccia or massive, seldom disseminated. Ore mineral composition includes pyrrhotite, pentlandite, and chalcopyrite with an insignificant admixture of minerals of the platinum group elements and gold. The ore bodies were topped with an \"iron hat\", which was the main sign of copper-nickel mineralization at depth.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129609924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-31-40
I. A. Bryzgalov, N. Savva, O. V. Kononov, A. Volkov, Moscow Geochemistry Ras
The authors consider features of the triple structure of Ag-Cu-S solid solution decomposition resulted from redistribution of matter in the ores of the epithermal Au-Ag Teploye deposit due to the spatial combination of volcanogenic Au-Ag mineralization, with relatively later copper porphyry. The discovery of the mckinstryite, copper-silver sulfide, permits to consider the occurrence of copper in acanthite a non-structural impurity element, while the term "cupreous acanthite" appears insufficiently substantiated. It has been suggested that the mckinstryite-jalpaite (+ acanthite) structure was formed not by the decomposition of a solid solution or the crystallization of a normal hydrothermal solution, but but in the course of solidification of the sluggish, viscous, colloid-like substance in a metastable environment under low-temperature conditions, and was accompanied by structural rearrangement of its mineral constituents.
{"title":"Особенности структур распада твердого раствора Cu-Ag cульфидов на месторождении Теплое (Северо-Восток России)","authors":"I. A. Bryzgalov, N. Savva, O. V. Kononov, A. Volkov, Moscow Geochemistry Ras","doi":"10.34078/1814-0998-2021-2-31-40","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-31-40","url":null,"abstract":"The authors consider features of the triple structure of Ag-Cu-S solid solution decomposition resulted from redistribution of matter in the ores of the epithermal Au-Ag Teploye deposit due to the spatial combination of volcanogenic Au-Ag mineralization, with relatively later copper porphyry. The discovery of the mckinstryite, copper-silver sulfide, permits to consider the occurrence of copper in acanthite a non-structural impurity element, while the term \"cupreous acanthite\" appears insufficiently substantiated. It has been suggested that the mckinstryite-jalpaite (+ acanthite) structure was formed not by the decomposition of a solid solution or the crystallization of a normal hydrothermal solution, but but in the course of solidification of the sluggish, viscous, colloid-like substance in a metastable environment under low-temperature conditions, and was accompanied by structural rearrangement of its mineral constituents.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121869135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-68-76
V. M. Mikhailov
The article discusses previously unexplored hydrological and hydrogeological manifestations of smallscale tectonics on a number of lakes and streams in the North-East of Russia. The research involves the results of the author's own observations, analysis of cartographic and aerospace materials of different years as well as published and interrogation data. Regime and evolution of the investigated objects display significant (to several years) variability within short time intervals, manifested in intense fluctuations of water levels in lakes, including their complete draining, absorption of rivers flow, and a number of other effects. The most unusual of them are: 1) counter-directed underground and surface water flows at one of the lakes' extremity; 2) an underground reservoir existence in low reaches of a stream. Most of the time, it drains the surface flow but occasionally it generates volleys of water many times exceeding the extreme floods on streams of comparable sizes. In high-water periods, it functions as a low-debit spring whose output oscillates daily under the influence of tidal force. Many of the studied objects are situated in localities of low-contrast relief without distinct features of tectonic activity. Undoubtedly, the presence of such features does not exclude the processes similar to the abovementioned, though in areas with intense and high-amplitude tectonic movements they are mostly obscure. Probably, in mountainous parts, including foothills, they are widespread. The results presented indicate the need for searching unconventional approaches to interpreting similar observations and using the maximum possible amount of available information. Practical importance of such studies is implied by the necessity to consider the possibility of local tectonic movements when designing industrial and civil objects. The leading inventory in this case should be the study of hydrological and hydrogeological peculiarities of regimes at the sites proposed and the retrospective analysis of cartographic and aerospace materials, examples of which are presented in this paper.
{"title":"К вопросу о режиме водных объектов Охотско-Колымского водораздела","authors":"V. M. Mikhailov","doi":"10.34078/1814-0998-2021-2-68-76","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-68-76","url":null,"abstract":"The article discusses previously unexplored hydrological and hydrogeological manifestations of smallscale tectonics on a number of lakes and streams in the North-East of Russia. The research involves the results of the author's own observations, analysis of cartographic and aerospace materials of different years as well as published and interrogation data. Regime and evolution of the investigated objects display significant (to several years) variability within short time intervals, manifested in intense fluctuations of water levels in lakes, including their complete draining, absorption of rivers flow, and a number of other effects. The most unusual of them are: 1) counter-directed underground and surface water flows at one of the lakes' extremity; 2) an underground reservoir existence in low reaches of a stream. Most of the time, it drains the surface flow but occasionally it generates volleys of water many times exceeding the extreme floods on streams of comparable sizes. In high-water periods, it functions as a low-debit spring whose output oscillates daily under the influence of tidal force. Many of the studied objects are situated in localities of low-contrast relief without distinct features of tectonic activity. Undoubtedly, the presence of such features does not exclude the processes similar to the abovementioned, though in areas with intense and high-amplitude tectonic movements they are mostly obscure. Probably, in mountainous parts, including foothills, they are widespread. The results presented indicate the need for searching unconventional approaches to interpreting similar observations and using the maximum possible amount of available information. Practical importance of such studies is implied by the necessity to consider the possibility of local tectonic movements when designing industrial and civil objects. The leading inventory in this case should be the study of hydrological and hydrogeological peculiarities of regimes at the sites proposed and the retrospective analysis of cartographic and aerospace materials, examples of which are presented in this paper.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117195446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-87-98
L. A. Zelenskaya
Comparison of the 2019 census results with those obtained earlier permits to evaluate changes in the number and distribution of nesting seabird colonies оn the Staritsky Peninsula over the past 10 years. The Staritsky Peninsula coasts and the Gertner and Veselaya bay islands are located in close proximity to the city of Magadan, and therefore are subject to maximum anthropogenic pressure. The total number of breeding seabirds (including the urban population of the Slaty-backed Gull in the city of Magadan) increased from 36 thousand individuals in 2009 to 57.6 thousand individuals in 2019. Simultaneously, the proportion of main species changed in the largest colonies around the city - on the Tri Brata Islands and Cape Ostrovnoy. A very large colony (3,230 birds) of the Pelagic Cormorants near the mouth of the Dukcha River, which appeared in the last 20 years, now became the largest in the Tauy Bay. The colony formation and growth was promoted by the urban wastewaters discharged into the Gertner Bay.
{"title":"Состояние колоний морских птиц полуострова Старицкого (Тауйская губа, Охотское море)","authors":"L. A. Zelenskaya","doi":"10.34078/1814-0998-2021-2-87-98","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-87-98","url":null,"abstract":"Comparison of the 2019 census results with those obtained earlier permits to evaluate changes in the number and distribution of nesting seabird colonies оn the Staritsky Peninsula over the past 10 years. The Staritsky Peninsula coasts and the Gertner and Veselaya bay islands are located in close proximity to the city of Magadan, and therefore are subject to maximum anthropogenic pressure. The total number of breeding seabirds (including the urban population of the Slaty-backed Gull in the city of Magadan) increased from 36 thousand individuals in 2009 to 57.6 thousand individuals in 2019. Simultaneously, the proportion of main species changed in the largest colonies around the city - on the Tri Brata Islands and Cape Ostrovnoy. A very large colony (3,230 birds) of the Pelagic Cormorants near the mouth of the Dukcha River, which appeared in the last 20 years, now became the largest in the Tauy Bay. The colony formation and growth was promoted by the urban wastewaters discharged into the Gertner Bay.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115040892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-105-115
A. Lebedintsev
The article presents data on the scientific and organizational activities of the Head of the NEISRI Laboratory of Archeology, History, and Ethnography, Doctor of Historical Sciences, Professor, Corresponding Member of the Russian Academy of Sciences N. N. Dikov as well as on the creation of the North-East Asian Complex Achaeological Expedition (NEACAE) and the results of archaeological research performed by its detachments. N. N. Dikov's important contribution to the organization of archaeological research in the North-East Russia and his achievements in the study of ancient cultures are noted. The NEACAE formation contributed to a greater coverage of the territory of the north of the Far East by archaeological research, the discovery of a significant number of archaeological sites in Chukotka, Kamchatka, Kolyma, and on the Okhotsk coast.
{"title":"Николай Николаевич Диков - организатор археологических исследований на Северо-Востоке России","authors":"A. Lebedintsev","doi":"10.34078/1814-0998-2021-2-105-115","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-105-115","url":null,"abstract":"The article presents data on the scientific and organizational activities of the Head of the NEISRI Laboratory of Archeology, History, and Ethnography, Doctor of Historical Sciences, Professor, Corresponding Member of the Russian Academy of Sciences N. N. Dikov as well as on the creation of the North-East Asian Complex Achaeological Expedition (NEACAE) and the results of archaeological research performed by its detachments. N. N. Dikov's important contribution to the organization of archaeological research in the North-East Russia and his achievements in the study of ancient cultures are noted. The NEACAE formation contributed to a greater coverage of the territory of the north of the Far East by archaeological research, the discovery of a significant number of archaeological sites in Chukotka, Kamchatka, Kolyma, and on the Okhotsk coast.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"12 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120906500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.34078/1814-0998-2021-2-77-86
V. I. Roslikova, Feb Ras Khabarovsk Environmental Problems, T. I. Matveenko, L. P. Mayorova
Urban soils are a complex transformed system. The most widespread over the the city area is technogenic lithogenesis, which determines the formation of new deposits with different properties. The researchers use the substantial genetic classification of trasformed soils and soil formations in industrial zones of the city of Khabarovsk. The basis for the selection of the horizon sequence is the classical ABC system. In the morphological description of the sections, attention is drawn to the newly formed soil bodies formed on modern deposits of different genesis, as well as to their position in elementary landscapes. Indicators of respiratory activity and phytotoxicity of soils permit to consider changes in their biological activity under the anthropogenic pressure. The research results presented have shown that there is no firm attribution of respiratory activity to soil formations in industrial zones; in each industrial zone, it is due to the functional type of sediments. The spatial variation of biological activity is significant and, in general, lies within its low values. The results obtained indicate the need to select specific remediation measures for each industrial zone, according to the soil formation state.
{"title":"Почвы промышленных зон города Хабаровска и их биологическая активность","authors":"V. I. Roslikova, Feb Ras Khabarovsk Environmental Problems, T. I. Matveenko, L. P. Mayorova","doi":"10.34078/1814-0998-2021-2-77-86","DOIUrl":"https://doi.org/10.34078/1814-0998-2021-2-77-86","url":null,"abstract":"Urban soils are a complex transformed system. The most widespread over the the city area is technogenic lithogenesis, which determines the formation of new deposits with different properties. The researchers use the substantial genetic classification of trasformed soils and soil formations in industrial zones of the city of Khabarovsk. The basis for the selection of the horizon sequence is the classical ABC system. In the morphological description of the sections, attention is drawn to the newly formed soil bodies formed on modern deposits of different genesis, as well as to their position in elementary landscapes. Indicators of respiratory activity and phytotoxicity of soils permit to consider changes in their biological activity under the anthropogenic pressure. The research results presented have shown that there is no firm attribution of respiratory activity to soil formations in industrial zones; in each industrial zone, it is due to the functional type of sediments. The spatial variation of biological activity is significant and, in general, lies within its low values. The results obtained indicate the need to select specific remediation measures for each industrial zone, according to the soil formation state.","PeriodicalId":341033,"journal":{"name":"Bulletin of the North-East Science Center","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133354352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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