Pub Date : 2022-01-01DOI: 10.26516/2541-9641.2022.3.64
I. Chuvashova, S. Rasskazov, T. Yasnygina, E. Saranina
Of global importance are sources of Late Cenozoic volcanic rocks, indicated by fast and slow anomalies of the lower mantle: ASITA, SOPITA, AFITA, and NAITA. ASITA characterizes the LOMU–ELMU protomantle melt anomalies of the lower mantle high velocity skeleton of Asia during the early mantle geodynamic epoch. SOPITA and AFITA are marked by the HIMU plume component, which was generated in the low-velocity lower mantle of the South Pacific and Africa during the middle mantle geodynamic epoch, about 2 Ga. NAITA denotes processes of generation of the North American high-velocity lower-mantle anomaly in the late geodynamic epoch. Of regional importance are sub-lithospheric sources that are characterized by a common geochemical structure of volcanic rocks of large volcanic regions, formed due to the evolution of homogeneous proto-mantle deep reservoirs. An example is sources of the Wulanhada-Hannuoba and Abaga-Dariganga volcanic regions, marking the spatial transition from the LOMU proto-mantle reservoir of the former to the ELMU one of the latter. Local sources of volcanoes are displayed in limited volumes of melts from the heterogeneous lithosphere. An example is sources of the Wudalianchi volcanic field, on which, at first, in the time interval of 2.5–0.8 Ma, the material of the Laoshantou and Gelaqiu sources with a common age of 1.88 Ga occurred, and then, during the spatial-temporal evolution of volcanism in the last 0.6 Ma, the material from these sources was mixed with a younger lithospheric material.
{"title":"Radiogenic Isotope Studies of Late Cenozoic Volcanic Rocks from Asia and North America: Sources of Volcanism of Global, Regional, and Local Significance","authors":"I. Chuvashova, S. Rasskazov, T. Yasnygina, E. Saranina","doi":"10.26516/2541-9641.2022.3.64","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.3.64","url":null,"abstract":"Of global importance are sources of Late Cenozoic volcanic rocks, indicated by fast and slow anomalies of the lower mantle: ASITA, SOPITA, AFITA, and NAITA. ASITA characterizes the LOMU–ELMU protomantle melt anomalies of the lower mantle high velocity skeleton of Asia during the early mantle geodynamic epoch. SOPITA and AFITA are marked by the HIMU plume component, which was generated in the low-velocity lower mantle of the South Pacific and Africa during the middle mantle geodynamic epoch, about 2 Ga. NAITA denotes processes of generation of the North American high-velocity lower-mantle anomaly in the late geodynamic epoch. Of regional importance are sub-lithospheric sources that are characterized by a common geochemical structure of volcanic rocks of large volcanic regions, formed due to the evolution of homogeneous proto-mantle deep reservoirs. An example is sources of the Wulanhada-Hannuoba and Abaga-Dariganga volcanic regions, marking the spatial transition from the LOMU proto-mantle reservoir of the former to the ELMU one of the latter. Local sources of volcanoes are displayed in limited volumes of melts from the heterogeneous lithosphere. An example is sources of the Wudalianchi volcanic field, on which, at first, in the time interval of 2.5–0.8 Ma, the material of the Laoshantou and Gelaqiu sources with a common age of 1.88 Ga occurred, and then, during the spatial-temporal evolution of volcanism in the last 0.6 Ma, the material from these sources was mixed with a younger lithospheric material.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85281523","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.4.161
S. Rasskazov, I.S. Chuvashova
A review of the main problems of geology by V.E. Khain in 2003 and 2007. This shows different degrees of validity of hypotheses with an emphasis on breakthrough work and clearly doubtful constructions that required additional argumentation at that time. This review is necessary to understand the progressive and degenerative development of geology in the last 20 years.
{"title":"Аналитические обзоры основных проблем геологии 2003–2007 гг. Виктора Ефимовича Хаина и их значение для понимания современных достижений в геологических изысканиях","authors":"S. Rasskazov, I.S. Chuvashova","doi":"10.26516/2541-9641.2022.4.161","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.4.161","url":null,"abstract":"A review of the main problems of geology by V.E. Khain in 2003 and 2007. This shows different degrees of validity of hypotheses with an emphasis on breakthrough work and clearly doubtful constructions that required additional argumentation at that time. This review is necessary to understand the progressive and degenerative development of geology in the last 20 years.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83696730","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.3.149
E. Kononov
The results of the study of the state of I.D. Chersky's serifs along the north-western and north-eastern sides of the Baikal Depression are presented. The condition and safety of the serifs were clarified and the installation of new metal serifs with GPS-binding for each of them was carried out.
{"title":"Renovation of I.D. Chersky's serifs on Lake Baikal","authors":"E. Kononov","doi":"10.26516/2541-9641.2022.3.149","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.3.149","url":null,"abstract":"The results of the study of the state of I.D. Chersky's serifs along the north-western and north-eastern sides of the Baikal Depression are presented. The condition and safety of the serifs were clarified and the installation of new metal serifs with GPS-binding for each of them was carried out.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79357850","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.2.91
S. Rasskazov, Yu. Ailow, I. Chuvashova, T. Yasnygina
From compositions of garnet-bearing and garnet-free assemblages of deep-seated nodules brought to a surface by Cenozoic and older (Phanerozoic) magmatic melts, petrological zones of crust-mantle transition (PZСMT) are defined under granulite terranes of craton and non-craton regions. Present-day Moho discontinuities only partially coincide with petrological estimates of a change from felsic-basic rocks (that belong to the continental crust) by predominantly ultramafic rocks (that represent the continental mantle lithosphere) and often lie much deeper than the PZСMT. Depths of such zones change over time. For a garnet-free assemblage of deep-seated nodules ejected by basaltic melts about 13 Ma ago from the root of a granulite terrane exposed in the eastern part of the Tunka Valley, two PT trends were obtained, one of which corresponds to a high (up to 120 mW/m2) rift conductive geotherm, another one crosses low conductive geotherms (drops below 60 mW/m2 one). The PZСMT shows here a temperature approximately 200°C lower than the PZСMT of granulite terranes in Eastern Australia, China, and Svalbard. Deep-seated nodules characterize the development of hot transtension under the rift valley in the cold root part of the East Tunka block with the accumulation and release of elastic stresses accompanied by significant synkinematic (metasomatic and magmatic) processes in the time interval 18–12 Ma ago. The transtension was followed by a crustal transpression with inversional uplift of an area and a probable relative increase in the depth of the Moho discontinuity, determined from the both P- and S-wave velocities for the modern crust and lithospheric part of the mantle.
{"title":"Relationship between petrological core-mantle transition and the seismic Moho discontinuty below granulite terranes: evidence on transformation of a root part beneath the Eastern Tunka block in deep-seated nodules from late ceniozoic volcanic rocks","authors":"S. Rasskazov, Yu. Ailow, I. Chuvashova, T. Yasnygina","doi":"10.26516/2541-9641.2022.2.91","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.2.91","url":null,"abstract":"From compositions of garnet-bearing and garnet-free assemblages of deep-seated nodules brought to a surface by Cenozoic and older (Phanerozoic) magmatic melts, petrological zones of crust-mantle transition (PZСMT) are defined under granulite terranes of craton and non-craton regions. Present-day Moho discontinuities only partially coincide with petrological estimates of a change from felsic-basic rocks (that belong to the continental crust) by predominantly ultramafic rocks (that represent the continental mantle lithosphere) and often lie much deeper than the PZСMT. Depths of such zones change over time. For a garnet-free assemblage of deep-seated nodules ejected by basaltic melts about 13 Ma ago from the root of a granulite terrane exposed in the eastern part of the Tunka Valley, two PT trends were obtained, one of which corresponds to a high (up to 120 mW/m2) rift conductive geotherm, another one crosses low conductive geotherms (drops below 60 mW/m2 one). The PZСMT shows here a temperature approximately 200°C lower than the PZСMT of granulite terranes in Eastern Australia, China, and Svalbard. Deep-seated nodules characterize the development of hot transtension under the rift valley in the cold root part of the East Tunka block with the accumulation and release of elastic stresses accompanied by significant synkinematic (metasomatic and magmatic) processes in the time interval 18–12 Ma ago. The transtension was followed by a crustal transpression with inversional uplift of an area and a probable relative increase in the depth of the Moho discontinuity, determined from the both P- and S-wave velocities for the modern crust and lithospheric part of the mantle.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85314869","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.2.182
A. Kitov, S. Kovalenko, E. Ivanov, I. Denisenko
The results of the spring expedition of the Student and Teaching Club "Portulan" held in 2021 together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences and the Institute of the Earth's Crust of the Siberian Branch of the Russian Acad- emy of Sciences to the area of Mount Munku-Sardyk are summed up, within the framework of which field scientific studies of nival-glacial formations, landscape-forming processes, slope forms of the relief of the territory of the basins of the White Irkut and Muguvek rivers were carried out. Traditionally, the weather, the state of the Peretolchina glacier (northern), high-altitude ice and the Active mountain stream were monitored, according to which detailed georadar profiling was carried out
{"title":"Expedition of the Institute of Geography named after V.B. Sochava SB RAS and the Portulan Club to the Eastern Sayan Mountains (Munku-Sardyk mountain range) in April-May 2021","authors":"A. Kitov, S. Kovalenko, E. Ivanov, I. Denisenko","doi":"10.26516/2541-9641.2022.2.182","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.2.182","url":null,"abstract":"The results of the spring expedition of the Student and Teaching Club \"Portulan\" held in 2021 together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences and the Institute of the Earth's Crust of the Siberian Branch of the Russian Acad- emy of Sciences to the area of Mount Munku-Sardyk are summed up, within the framework of which field scientific studies of nival-glacial formations, landscape-forming processes, slope forms of the relief of the territory of the basins of the White Irkut and Muguvek rivers were carried out. Traditionally, the weather, the state of the Peretolchina glacier (northern), high-altitude ice and the Active mountain stream were monitored, according to which detailed georadar profiling was carried out","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88779486","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.2.47
R. Alokla, E. Chebykin, S. Rasskazov, T. Yasnygina, V. Akulova, I. Chuvashova, Yi-Ming Sun
The results of the study of chemical, granulometric, and mineral compositions of sapropelic bottom silts from Sagan-Nur lake are presented in four cores of the layer as thick as 45 cm that overlies sandy lacustrine deposits. The silt is used as therapeutic mud (peloids). Clay minerals in sedimentary deposits are identified using X-ray diffraction analysis and scanning electron microscopy. Finely dispersed clay minerals of peloids are considered as indicators of anaerobic conditions of lithogenetic processes in the hypergenesis zone.
{"title":"Clay minerals of peloids of the lake Sagan-Nur in the Tunka Valley as indicators of anaerobic conditions of lithogenetic processes","authors":"R. Alokla, E. Chebykin, S. Rasskazov, T. Yasnygina, V. Akulova, I. Chuvashova, Yi-Ming Sun","doi":"10.26516/2541-9641.2022.2.47","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.2.47","url":null,"abstract":"The results of the study of chemical, granulometric, and mineral compositions of sapropelic bottom silts from Sagan-Nur lake are presented in four cores of the layer as thick as 45 cm that overlies sandy lacustrine deposits. The silt is used as therapeutic mud (peloids). Clay minerals in sedimentary deposits are identified using X-ray diffraction analysis and scanning electron microscopy. Finely dispersed clay minerals of peloids are considered as indicators of anaerobic conditions of lithogenetic processes in the hypergenesis zone.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75731675","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.2.22
A.I. Khassan, S. Rasskazov, I.S. Chuvashova, T. A. Kornilova, T. Yasnygina
Lithological, petrographic, and lithogeochemical data are given for sedimentary rocks of alluvial, lacustrine-marsh, and lacustrine facies in the Barguzin valley, uncovered by new boreholes. During petrographic studies of thin sections, the main lithotypes of stratons of rift basins were identified. According to the mineral composition of the rocks, petrochemical and microelement characteristics, a conclusion was made about the origin of sedimentary deposits as a result of erosion of the granite basement rocks.
{"title":"Литотипы, фации и источники материала осадочных пород в Баргузинской долине Байкальской рифтовой системы","authors":"A.I. Khassan, S. Rasskazov, I.S. Chuvashova, T. A. Kornilova, T. Yasnygina","doi":"10.26516/2541-9641.2022.2.22","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.2.22","url":null,"abstract":"Lithological, petrographic, and lithogeochemical data are given for sedimentary rocks of alluvial, lacustrine-marsh, and lacustrine facies in the Barguzin valley, uncovered by new boreholes. During petrographic studies of thin sections, the main lithotypes of stratons of rift basins were identified. According to the mineral composition of the rocks, petrochemical and microelement characteristics, a conclusion was made about the origin of sedimentary deposits as a result of erosion of the granite basement rocks.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75949903","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.3.20
S. Kovalenko, S. Rasskazov, M. Grudinin
The article deals with the structural and petrological evolution of one of the many gabbroid massifs of the Southern Baikal region - Snezhninsky, located near the river of the same name, characterized by the most typical structural and metamorphic paragenesis: comfort with layering of containing rocks, located in a steep twisted wing of asymmetrical folds of latitudinal extension with horizontal hinges and axial planes inclined to the north. the array is complicated by a longitudinal oblique upsurge with a powerful zone of tectonites. The northwestern end of the massif is complicated by the upsurge of the northeastern extension. To a depth, the massif sinks to 4-5 km and there is cut off by another fault of the northwestern extension. The internal structure of the array is characterized by a rather monotonous development of small structural forms: the structures of the magma flow, emphasized by the elongation of flat xenoliths, the asymmetrical folds of the right pattern in the plan, the gradual intertransitions between all varieties of rocks composing the array, indicating a significant warming of all rocks during their formation and assimilation.
{"title":"Structural and Petrological Evolution of the Snezhnaya Gabbro-Syenite Massif (Southern Baikal Region)","authors":"S. Kovalenko, S. Rasskazov, M. Grudinin","doi":"10.26516/2541-9641.2022.3.20","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.3.20","url":null,"abstract":"The article deals with the structural and petrological evolution of one of the many gabbroid massifs of the Southern Baikal region - Snezhninsky, located near the river of the same name, characterized by the most typical structural and metamorphic paragenesis: comfort with layering of containing rocks, located in a steep twisted wing of asymmetrical folds of latitudinal extension with horizontal hinges and axial planes inclined to the north. the array is complicated by a longitudinal oblique upsurge with a powerful zone of tectonites. The northwestern end of the massif is complicated by the upsurge of the northeastern extension. To a depth, the massif sinks to 4-5 km and there is cut off by another fault of the northwestern extension. The internal structure of the array is characterized by a rather monotonous development of small structural forms: the structures of the magma flow, emphasized by the elongation of flat xenoliths, the asymmetrical folds of the right pattern in the plan, the gradual intertransitions between all varieties of rocks composing the array, indicating a significant warming of all rocks during their formation and assimilation.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77617759","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.3.158
S. Kovalenko, A. Kitov, E. Ivanov
The results of the 2018 expeditions of the student and teacher club "Portulan" together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences to the area of mount Munku-Sardyk are summed up, within the framework of which field scientific studies of nival-glacial formations, river and sloped ice, slope forms of relief and their processes forming along the valleys of the White Irkut, Bugovek, Muguvek rivers were carried out: regime surveys of high-altitude ice, as well as weather monitoring was traditionally carried out, study of the stone stream "Active".
{"title":"Expediciand club Portulan in the area of Muncu-Sardyk in 2018","authors":"S. Kovalenko, A. Kitov, E. Ivanov","doi":"10.26516/2541-9641.2022.3.158","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.3.158","url":null,"abstract":"The results of the 2018 expeditions of the student and teacher club \"Portulan\" together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences to the area of mount Munku-Sardyk are summed up, within the framework of which field scientific studies of nival-glacial formations, river and sloped ice, slope forms of relief and their processes forming along the valleys of the White Irkut, Bugovek, Muguvek rivers were carried out: regime surveys of high-altitude ice, as well as weather monitoring was traditionally carried out, study of the stone stream \"Active\".","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83034290","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 : 2022-01-01DOI: 10.26516/2541-9641.2022.1.166
S. Kovalenko, A. Kitov, E. Serebryakov, A.M. Afonkin, E. Ivanov
The results of the expeditions of 2017 of students and teachers of the "Portulan" club together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences and the Institute of the Earth's Crust of the Russian Academy of Sciences to the area of Munku-Sardyk mount are presented, within the framework of which field scientific studies of nival-glacial formations, river and sloped aufeis, sloped landforms and their processes forming along the valleys of the White Irkut, Bugovek, Muguvek rivers: regime surveys of high-altitude aufeis, georadar studies of the Peretolchin glacier. For the first time, a study of the last "white spot" was carried out – the open part of the Radde glacier, with a description of its structure and GPS-metering of the boundaries, as well as traditional weather monitoring, the study of the active stone stream and the Big Muguvek aufeis.
{"title":"Expeditions of the Portulan Club to the Munku-Sardyk area in 2017","authors":"S. Kovalenko, A. Kitov, E. Serebryakov, A.M. Afonkin, E. Ivanov","doi":"10.26516/2541-9641.2022.1.166","DOIUrl":"https://doi.org/10.26516/2541-9641.2022.1.166","url":null,"abstract":"The results of the expeditions of 2017 of students and teachers of the \"Portulan\" club together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences and the Institute of the Earth's Crust of the Russian Academy of Sciences to the area of Munku-Sardyk mount are presented, within the framework of which field scientific studies of nival-glacial formations, river and sloped aufeis, sloped landforms and their processes forming along the valleys of the White Irkut, Bugovek, Muguvek rivers: regime surveys of high-altitude aufeis, georadar studies of the Peretolchin glacier. For the first time, a study of the last \"white spot\" was carried out – the open part of the Radde glacier, with a description of its structure and GPS-metering of the boundaries, as well as traditional weather monitoring, the study of the active stone stream and the Big Muguvek aufeis.","PeriodicalId":44327,"journal":{"name":"Italian Journal of Engineering Geology and Environment","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81790083","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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