Climatic Variations in the Arctic Region in the Cretaceous and Cenozoic
| Autor: | A. V. Ivanov, R. R. Gabdullin, Yu. I. Rostovtseva, N. V. Badulina |
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| Rok vydání: | 2019 |
| Předmět: |
020209 energy
Northern Hemisphere 02 engineering and technology Marine invertebrates 010502 geochemistry & geophysics 01 natural sciences Subarctic climate Cretaceous Paleontology Stage (stratigraphy) 0202 electrical engineering electronic engineering information engineering Period (geology) General Earth and Planetary Sciences Glacial period Cenozoic geographic locations Geology 0105 earth and related environmental sciences |
| Zdroj: | Moscow University Geology Bulletin. 74:559-566 |
| ISSN: | 1934-8436 0145-8752 |
| DOI: | 10.3103/s0145875219060024 |
| Popis: | As a result of an analysis of published works, a database on paleotemperatures in the Arctic and Subarctic regions based on marine invertebrate skeletons, marine palynomorphs, dinosaur teeth, analysis of the ability of reptiles to lay eggs at low temperatures, terrestrial floral assemblages (CLAMP-analysis), the presence of coal interbeds in continental deposits within the Arctic region, and on membrane lipids of glycerol and dialkylglycerol tetraether in marine sediments and glendonite was assembled. Based on the obtained data, a paleotemperature curve for the Cretaceous–Cenozoic stage of geological history of the Arctic region was constructed. The general trends of this curve are in consistent with the global paleotemperature curve (Scotese, 2015) (with the exception of the cooling period in the Tortonian due to local factors). In total, 16 climatic cycles in the climatic history of the Arctic, including 16 climatic minima (including the glaciation in the Northern Hemisphere) and 15 climatic maxima have been established. |
| Databáze: | OpenAIRE |
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