High-resolution calcareous nannoplankton palaeoecology as a proxy for small-scale environmental changes in the Early Miocene.

ABSTRACT: Within a 5.5-m-thick succession of upper Burdigalian (CNP-zone NN4) shallow neritic sediments from the North Alpine Foreland Basin in Lower Austria a high-resolution section of finely laminated sediment with a thickness of 940.5 mm was logged. The section was continuously sampled, resulting in 100 samples, covering a thickness of ~ 10 mm each. An integrated approach was applied to these samples in order to study proxy records including calcareous nannoplankton, geochemical and geophysical data. Multivariate statistics on the autochthonous assemblage were used to evaluate the ecological preferences of each taxon and to rule out possible contamination of the signal by taphonomic processes. In order to assess changes in the assemblage composition throughout the section, three taphogroups were

SUBMITTER: Auer G 

PROVIDER: S-EPMC4459667 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature