Diatom-based evidence for abrupt climate changes during the late glacial in the Southern Carpathian mountains

Krisztina Buczkó, E. Magyari, Éva Soróczki-Pintér, Katalin Hubay, M. Braun, Miklós Bálint

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A high-resolution paleolimnological record from Lake Brazi (TDB-1; 45°23'47″N, 22°54'06″E, 1740 m a.s.l.), a small, glacial lake in the Retezat (South Carpathian Mountains, Romania) provides a sensitive record of the impacts of late glacial climatic change on siliceous algal assemblages. The sequence, ranging from 15,700 cal yr BP to 9500 cal yr BP, suggests that the most significant changes in diatom assemblages took place at 12,800 and 10,400 cal yr BP, when alkaliphilous fragilarioid taxa were replaced by acidophilous diatoms. Altogether eight zones were distinguished with sharp and rapid changes of diatom assemblages. The paper discusses the application of siliceous algae in multi-proxy paleolimnological analyses, demonstrates the advantages and disadvantages of this proxy and presents the story of floristic discovery of unique diatom assemblages, the closest recent analogs of which are found in the arctic region.

Original languageEnglish
Pages (from-to)249-268
Number of pages20
JournalCentral European Geology
Volume52
Issue number3
DOIs
Publication statusPublished - Sep 1 2009

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late glacial
diatom
climate change
mountain
glacial lake
floristics
alga
lake

Keywords

  • diatoms
  • glacial lakes
  • oligotrophy
  • paleolimnology
  • Retezat Mountains

ASJC Scopus subject areas

  • Geology

Cite this

Diatom-based evidence for abrupt climate changes during the late glacial in the Southern Carpathian mountains. / Buczkó, Krisztina; Magyari, E.; Soróczki-Pintér, Éva; Hubay, Katalin; Braun, M.; Bálint, Miklós.

In: Central European Geology, Vol. 52, No. 3, 01.09.2009, p. 249-268.

Research output: Contribution to journalArticle

Buczkó, Krisztina ; Magyari, E. ; Soróczki-Pintér, Éva ; Hubay, Katalin ; Braun, M. ; Bálint, Miklós. / Diatom-based evidence for abrupt climate changes during the late glacial in the Southern Carpathian mountains. In: Central European Geology. 2009 ; Vol. 52, No. 3. pp. 249-268.
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