English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This study assesses changes in the environmental conditions in Chernyshov Bay (northern part of Aral Sea Western Basin) during the last ~2 ky from geochemical and diatom analyses of sediment core C2/2004. Comparison of fossil assemblages with the contemporary distribution of diatoms in the Aral Sea suggests that considerable changes occurred in water level as well as salinity. Deposits with high diatom concentrations and dominance of the marine species Actinocyclus octonarius EHRENBERG are interpreted as periods of high water level, whereas replacement by Tryblionella compressa (BAILEY) BOYER is considered to indicate lake level fall. On the other hand sediments with low diatom concentration represent higher freshwater input and therefore salinity decrease. This interpretation is supported by estimates of siliciclastic and chemogenic sediment components. A chronology of major lake stages is derived and roughly agrees with recent findings from other studies.

Diatom assemblage variations in the Aral Sea core C2/2004 over the past two millennia.