DOI: https://doi.org/10.15587/2313-8416.2015.42246

Diatoms as an indicator of bottom surface sediment dynamics in the southern Scotia sea

Олег Сергеевич Огиенко, Юлия Анатольевна Тимченко

Abstract


The study of diatoms from the sediments of the lower interval of column K97-18 in Scotia Sea it is revealed the combination of Late-Holocene and Miocene species in complexes, due to the abundance of inclusions of Middle Miocene diatoms in the rock. Age of re-deposition, transporters and ways of transportation are determined, and it is suggested possible localization of diatomite layers


Keywords


sedimentation; bottom deposits; diatomite; diatoms; Middle Miocene; Scotia Sea

References


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Armand, L., Crosta, X., Romero, O., Pichon, J.-J. (2005). The biogeography of major diatom taxa in Southern Ocean sediments: 1. Sea ice related species. Palaeogeography, Palaeoclimatology, Palaeoecology, 223 (1), 93–126. doi: 10.1016/j.palaeo.2005.02.015

Zielinski, U., Gersonde, R. (2002). Plio-Pleistocene diatom biostratigraphy from ODP Leg 177, Atlantic sector of the Southern Ocean. Marine Micropaleontology, 45 (3-4), 225–268. doi: 101016/S0377-8398(02)00031-2

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GOST Style Citations


1. Bak, Y. Diatom evidence for Holocene paleoclimatic change in the South Scotia Sea, West Antarctica [Text] / Y. S. Bak, K. C. Yoo, H. Yoon, J. D. Lee, H. Yun // Geosciences Journal. – 2007. – Vol. 11, Issue 1. – P. 11–22. doi: 10.1007/bf02910377

2. Лисицын, А. П. Ледовая седиментация в Мировом океане [Текст] / А. П. Лисицын. – M.: Наука, 1994. – 448 с.

3. Diekmann, B. Terrigenous sediment supply in the Scotia Sea (Southern Ocean): response to Late Quaternary ice dynamics in Patagonia and on the Antarctic Peninsula [Text] / B. Diekmann, G. Kuhna, V. Rachold, A. Abelmann, U. Brathauer, D. Futterer, R. Gersonde, H. Grobe // Palaeogeography, Palaeoclimatology, Palaeoecology. – 2000. – Vol. 162, Issues 3–4. – P. 357–387. doi: 10.1016/S0031-0182(00)00138-3

4. Gersonde, R. Neogene diatom biostratigraphy of ODP Leg 113, Weddell Sea (Antarctic Ocean) [Text] / R. Gersonde, L. Burckle // Proceedings of the Ocean Drilling Program, Scientific Results. – 1990. – Vol. 113. – P. 761–789. doi: 10.2973/odp.proc.sr.113.126.1990

5. Harwood, D. Diatom biostratigraphy and paleoenvironmental significance of reworked Miocene diatomaceous clasts in sediments from RISP site J-9 [Text] / D. Harwood, R. Scherer // Antarctic Journal of the U.S. – 1998.– Vol. 23, Issue 5. – P. 31–34.

6. Buffen, A. Diatom assemblages in surface sediments of the northwestern Weddell Sea, Antarctic Peninsula [Text] / A. Buffen, A. Leventer, A. Rubin, T. Hutchins // Marine Micropaleontology. – 2007. – Vol. 62, Issue 1. – P. 7–30. doi: 10.1016/j.marmicro.2006.07.002

7. Crosta, X. The biogeography of major diatom taxa in Southern Ocean sediments: 2. Open ocean related species [Text] / X. Crosta, O. Romero, L. Armand, J. J. Pichon // Palaeogeography, Palaeoclimatology, Palaeoecology. – 2005. – Vol. 223, Issue 1. – P. 66–92. doi: 10.1016/j.palaeo.2005.03.028

8. Armand, L. The biogeography of major diatom taxa in Southern Ocean sediments: 1. Sea ice related species [Text] / L. Armand, X. Crosta, O. Romero, J. J. Pichon // Palaeogeography, Palaeoclimatology, Palaeoecology. – 2005. – Vol. 223, Issue 1. – P. 93–126. doi: 10.1016/j.palaeo.2005.02.015

9. Zielinski, U. Plio-Pleistocene diatom biostratigraphy from ODP Leg 177, Atlantic sector of the Southern Ocean [Text] / U. Zielinski, R. Gersonde // Marine Micropaleontology. – 2002. – Vol. 45, Issue 3-4. – P. 225–268. doi: 10.1016/s0377-8398(02)00031-2 

10. Censarec, B. Data report: Relative abundance and stratigraphic ranges of selected diatom from Miocene sections at ODP Sites 689. 690, 1088 and 1092 (Atlantic sector of Southern Ocean) [Text] / B. Censarec, R. Gersonde // Proceedings of the Ocean Drilling Program, Scientific Results. – 2003. – Vol. 117. – P. 1–14. doi: 10.2973/odp.proc.sr.177.119.2003

11. Bart, P. Were West Antarctic Ice Sheet grounding events in the Ross Sea a consequence of East Antarctic Ice Sheet expansion during the middle Miocene? [Text] / P. Bart // Earth and Planetary Science Letters. – 2003. – Vol. 216, Issues 1-2. – P. 93–107. doi: 10.1016/S0012-821X(03)00509-0







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