Geologija / Geology
 ISSN 1392-110X ISSN 2029-056X (online) |
2005 m. Nr. 1 Diatom flora from the Zhidini section and its palaeogeographic and biostratigraphic significance
The aim of this paper is to introduce a more precise taxonomic and ecological composition of the diatom flora studied. New diatom investigations of ancient lacustrine sediments at Zhidini (Latvia) revealed a rich diatom flora consisting of 162 species and intraspecific taxa. On the basis of diatom analysis, seven local diatom assemblage zones (LDAZ Zh570-1 –Zh570-7) have been distinguished in ancient lacustrine deposits at Zhidini, which reflect the definite sedimentation conditions in the palaeobasin during the two climatic optimums and the intermediate cold interval.
Keywords: diatom algae, ecologic and geographic characteristics, systematic composition,palaeoecological conditions |
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2011 - Vol.53 No. 1, No. 2, No. 3 2010 - Vol.52 No. 1-4 2009 - Vol.51 No. 1-2, No. 3-4 2008 - Vol.50 No. 1, No. 2, No. 3, No. 4, No. Priedas 2007 No. 1, No. 2, No. 3, No. 4 2006 No. 1, No. 2, No. 3, No. 4 2005 No. 1, No. 2, No. 3, No. 4 2004 No. 1, No. 2, No. 3, No. 4 2003 No. 1, No. 2, No. 3, No. 4 2002 No. 1, No. 2, No. 3, No. 4 2001 No. 1, No. 2, No. 3, No. 4 |