Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive
The Late Holocene phases of aeolian processes have been reconstructed on the basis of dune fields construction. The palaeoenvironmental studies were targeted to following problems: 1) to determine the periods of higher and lower activity of aeolian processes; 2) to establish the age of aeolian depos...
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| Format: | Article |
| Language: | English |
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Дальневосточного отделения Российской академии наук, Южно-Сахалинск, Федеральное государственное бюджетное учреждение науки Институт морской геологии и геофизики
2022-06-01
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| Series: | Геосистемы переходных зон |
| Subjects: | |
| Online Access: | http://journal.imgg.ru/web/full/f-e2022-2-2.pdf |
| _version_ | 1818179601474519040 |
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| author | Nadezhda G. Razjigaeva Larisa A. Ganzey Khikmatulla A. Arslanov Nina F. Pshenichnikova |
| author_facet | Nadezhda G. Razjigaeva Larisa A. Ganzey Khikmatulla A. Arslanov Nina F. Pshenichnikova |
| author_sort | Nadezhda G. Razjigaeva |
| collection | DOAJ |
| description | The Late Holocene phases of aeolian processes have been reconstructed on the basis of dune fields construction. The palaeoenvironmental studies were targeted to following problems: 1) to determine the periods of higher and lower activity of aeolian processes; 2) to establish the age of aeolian deposits and buried soils; 3) to retrace the development of coastal landscapes. The age was determined by radiocarbon dating of paleosols and tephrostratigraphy. The correlation of tephra was performed using data on the volcanic glass chemical composition. The dunes formed during the cooling accompanied by a minor regression. Six buried soils found in the dunes reflect stabilization and overgrowing of dune fields. The longest period of dune stabilization began after a cold event 2800–2600 cal yr BP and lasted until the Little Ice Age. Paleosols contain the tephra of large volcanic eruptions on Urup (Kolokol volcano), Simushir (Zavaritsky volcano) and Iturup (tephra). Pollen analysis allows us to retrace the development of coastal landscapes. Thickets of dwarf pine developed during cooling, birch forests spread in the Medieval Warm Period, and herb meadows were widely represented on the dunes. Human impact on the coastal palaeovegetation was found. Aeolian sedimentation was high during the Little Ice Age. One of the factors of dune reactivation during the Little Ice Age was increased winter storminess associated with the East Asian winter monsoon. Evidence of active cyclogenesis is the increasing proportion of allochthonous pollen. The modern reactivation of aeolian processes is associated with human activity and storm erosion of dunes. |
| first_indexed | 2024-12-11T21:06:28Z |
| format | Article |
| id | doaj.art-3de3c198ab714d1dadc0d15834320cbf |
| institution | Directory Open Access Journal |
| issn | 2541-8912 2713-2161 |
| language | English |
| last_indexed | 2024-12-11T21:06:28Z |
| publishDate | 2022-06-01 |
| publisher | Дальневосточного отделения Российской академии наук, Южно-Сахалинск, Федеральное государственное бюджетное учреждение науки Институт морской геологии и геофизики |
| record_format | Article |
| series | Геосистемы переходных зон |
| spelling | doaj.art-3de3c198ab714d1dadc0d15834320cbf2022-12-22T00:50:51ZengДальневосточного отделения Российской академии наук, Южно-Сахалинск, Федеральное государственное бюджетное учреждение науки Институт морской геологии и геофизикиГеосистемы переходных зон2541-89122713-21612022-06-0162100113https://doi.org/10.30730/gtrz.2022.6.2.100-113Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archiveNadezhda G. Razjigaeva0https://orcid.org/0000-0001-7936-1797Larisa A. Ganzey1https://orcid.org/0000-0002-2538-6603Khikmatulla A. Arslanov2https://orcid.org/0000-0002-2302-8175Nina F. Pshenichnikova3https://orcid.org/0000-0003-3037-7477Pacific Institute of Geography of the Far Eastern Branch of RAS, Vladivostok, RussiaPacific Institute of Geography of the Far Eastern Branch of RAS, Vladivostok, RussiaSaint Petersburg State University, Saint Petersburg, RussiaPacific Institute of Geography of the Far Eastern Branch of RAS, Vladivostok, RussiaThe Late Holocene phases of aeolian processes have been reconstructed on the basis of dune fields construction. The palaeoenvironmental studies were targeted to following problems: 1) to determine the periods of higher and lower activity of aeolian processes; 2) to establish the age of aeolian deposits and buried soils; 3) to retrace the development of coastal landscapes. The age was determined by radiocarbon dating of paleosols and tephrostratigraphy. The correlation of tephra was performed using data on the volcanic glass chemical composition. The dunes formed during the cooling accompanied by a minor regression. Six buried soils found in the dunes reflect stabilization and overgrowing of dune fields. The longest period of dune stabilization began after a cold event 2800–2600 cal yr BP and lasted until the Little Ice Age. Paleosols contain the tephra of large volcanic eruptions on Urup (Kolokol volcano), Simushir (Zavaritsky volcano) and Iturup (tephra). Pollen analysis allows us to retrace the development of coastal landscapes. Thickets of dwarf pine developed during cooling, birch forests spread in the Medieval Warm Period, and herb meadows were widely represented on the dunes. Human impact on the coastal palaeovegetation was found. Aeolian sedimentation was high during the Little Ice Age. One of the factors of dune reactivation during the Little Ice Age was increased winter storminess associated with the East Asian winter monsoon. Evidence of active cyclogenesis is the increasing proportion of allochthonous pollen. The modern reactivation of aeolian processes is associated with human activity and storm erosion of dunes.http://journal.imgg.ru/web/full/f-e2022-2-2.pdfaeolian depositspaleosolminor regressionstephracoastal landscapehuman impact |
| spellingShingle | Nadezhda G. Razjigaeva Larisa A. Ganzey Khikmatulla A. Arslanov Nina F. Pshenichnikova Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive Геосистемы переходных зон aeolian deposits paleosol minor regressions tephra coastal landscape human impact |
| title | Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive |
| title_full | Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive |
| title_fullStr | Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive |
| title_full_unstemmed | Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive |
| title_short | Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive |
| title_sort | coastal dunes of urup island kuril islands north western pacific palaeoclimatic and environmental archive |
| topic | aeolian deposits paleosol minor regressions tephra coastal landscape human impact |
| url | http://journal.imgg.ru/web/full/f-e2022-2-2.pdf |
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