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- Title
Influence of Late Quaternary depositional environments on the structure of nannofossil assemblages in the Titanic area (northwestern Atlantic).
- Authors
Dmitrenko, O.
- Abstract
The nannofosssil assemblages have been analyzed in five cores taken from the Titanic area of the northwestern Atlantic (∼41°-42° N, ∼47°-50° W, water depths >3500 m) during cruises 41 and 43 of the R/V Akademik Mstislav Keldysh in 1998 and 2000. They correlate the host sediments with the upper Pleistocene-Holocene Emiliania huxleyi zone. The changes in the structure of the nannofossil assemblages and the lithological characteristics such as the content of biogenic CaCO, the abundance of ice-rafted debris, and the grain-size composition were used for the high-resolution stratigraphy of sections with defining marine isotopic stages 1-3 of the last 24 kyr. A characteristic feature of the nannofossil assemblages from this area is their enrichment with the cold-resistant species Coccolthus pelagicus during the warm climatic stages and the lack of allochthonous coccolitophorid remains.
- Subjects
NANNOFOSSILS; FOSSIL algae; ARCHAEOLOGICAL assemblages; PLEISTOCENE paleontology; COCCOLITHUS huxleyi
- Publication
Oceanology (00014370), 2012, Vol 52, Issue 1, p101
- ISSN
0001-4370
- Publication type
Article
- DOI
10.1134/S0001437012010067