LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE
Main objective is the reconstruction of late Quaternary climatic events in the northern and north-western parts of the Antarctic Peninsula shelf based on species variation, abundance and ecological structure of diatom complex in bottom sediments. Methods: siliceous microalgae were used as biomarkers...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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State Institution National Antarctic Scientific Center
2018-06-01
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| Series: | Український антарктичний журнал |
| Subjects: | |
| Online Access: | http://uaj.uac.gov.ua/index.php/uaj/article/view/57 |
| _version_ | 1818808334300479488 |
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| author | А. P. Olshtynska O. S. Ogienko |
| author_facet | А. P. Olshtynska O. S. Ogienko |
| author_sort | А. P. Olshtynska |
| collection | DOAJ |
| description | Main objective is the reconstruction of late Quaternary climatic events in the northern and north-western parts of the Antarctic Peninsula shelf based on species variation, abundance and ecological structure of diatom complex in bottom sediments. Methods: siliceous microalgae were used as biomarkers of geologycal, paleogeographycal and facial events. Results: the reasons for changing of the diatom composition in bottom sediments were determined; paleogeographic reconstraction and chronology of the Late Quarter paleoclimatic trends in the region were investigated. Conclusions of the main paleoclimatic events of the Late Quarter within the northwestern shelf and in the southern part of the Skotia Sea are made. Two climatic phases are identified: «Little Ice Age» (900-500 years ago) with moderate icy conditions and the next phase of rapid modern warming. |
| first_indexed | 2024-12-18T19:39:54Z |
| format | Article |
| id | doaj.art-bfa36e561a0a44d78ce3d0b2f4fec270 |
| institution | Directory Open Access Journal |
| issn | 1727-7485 2415-3087 |
| language | English |
| last_indexed | 2024-12-18T19:39:54Z |
| publishDate | 2018-06-01 |
| publisher | State Institution National Antarctic Scientific Center |
| record_format | Article |
| series | Український антарктичний журнал |
| spelling | doaj.art-bfa36e561a0a44d78ce3d0b2f4fec2702022-12-21T20:55:29ZengState Institution National Antarctic Scientific CenterУкраїнський антарктичний журнал1727-74852415-30872018-06-0116374410.33275/1727-7485.16.2017.5757LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAEА. P. Olshtynska0O. S. Ogienko1Institute of Geological Sciences, National Academy of Sciences of Ukraine, 55-b O. Honchar Str., Kyiv, 01054, UkraineInstitute of Geology, Taras Shevchenko National University of Kyiv, 90 Vasylkivska Str., Kyiv, 03022, UkraineMain objective is the reconstruction of late Quaternary climatic events in the northern and north-western parts of the Antarctic Peninsula shelf based on species variation, abundance and ecological structure of diatom complex in bottom sediments. Methods: siliceous microalgae were used as biomarkers of geologycal, paleogeographycal and facial events. Results: the reasons for changing of the diatom composition in bottom sediments were determined; paleogeographic reconstraction and chronology of the Late Quarter paleoclimatic trends in the region were investigated. Conclusions of the main paleoclimatic events of the Late Quarter within the northwestern shelf and in the southern part of the Skotia Sea are made. Two climatic phases are identified: «Little Ice Age» (900-500 years ago) with moderate icy conditions and the next phase of rapid modern warming.http://uaj.uac.gov.ua/index.php/uaj/article/view/57paleoclimatesouth oceandiatomsantarctic peninsula |
| spellingShingle | А. P. Olshtynska O. S. Ogienko LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE Український антарктичний журнал paleoclimate south ocean diatoms antarctic peninsula |
| title | LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE |
| title_full | LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE |
| title_fullStr | LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE |
| title_full_unstemmed | LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE |
| title_short | LATE QUATERNARY CLIMATE VARIATIONS IN WEST ANTARCTICA AND THEIR IMPACT ON THE MARINE SILICEOUS MICROALGAE |
| title_sort | late quaternary climate variations in west antarctica and their impact on the marine siliceous microalgae |
| topic | paleoclimate south ocean diatoms antarctic peninsula |
| url | http://uaj.uac.gov.ua/index.php/uaj/article/view/57 |
| work_keys_str_mv | AT apolshtynska latequaternaryclimatevariationsinwestantarcticaandtheirimpactonthemarinesiliceousmicroalgae AT osogienko latequaternaryclimatevariationsinwestantarcticaandtheirimpactonthemarinesiliceousmicroalgae |