Core 202170 (Unit F - lower), Arkona Basin, Baltic Sea (Holocene of Sweden)

Also known as Core 202170 (44-188cm), Baltic Sea

Where: Sweden (55.0° N, 13.7° E: paleocoordinates 55.0° N, 13.7° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Holocene (0.0 - 0.0 Ma)

• Uppermost unit in Arkona Basin sedimentary fill. AMS 14C dates give age at 6,475 years BP. From lower part of unit F (44-188 cm), (upper part = #35075)

•JA: local section entered as Core 202170

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; fine-grained, argillaceous, silty claystone

• Brackish to fully marine taxa, and some freshwater taxa, present in collection. Unit F was deposted after the Littorina transgression
• Fine-grained clay, silt, and mud, seperated from underlying units by basin-wide traceable sandy layer.

Size class: microfossils

Collection methods: core, chemical, sieve,

• Diatom and macrofossil analysis on material in core 202170 carried out by Professor A Witkowski at the University of Szczecin and Geologic Survey of Denmark and Greenland respectively. Collected during Cruise AvH (10/1996) with 6 m gravity corer, in 46.7 m water depth.

Primary reference: M. Moros, W. Lempke, and A. R. J.B. O. F. Kuijpers; Endler; Bennike; Gingele. 2002. Regressions and transgressions of the Baltic Basin reflected by a new high-resolution deglacial and postglacial lithostratigraphy for Arkona Basin sediments (western Baltic Sea). Boreas 31(2):151-162 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 35074: authorized by Austin Hendy, entered by Austin Hendy on 29.10.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• In authors opinion list is fairly representative, although only contains Foraminifera and Diatoms. There is no evidence of other fauna occuring in the assemblage.
Pseudosolenia calcaravis
Diatom; listed as "Pseudosolenia calcar-avis"
 Rotaliacea - Rotaliidae
Ammonia beccarii
 Rotaliacea - Elphidiidae
Elphidium incertum
Chaetoceros sp. Ehrenberg 1844
Diatom; listed as "Chaetoceros spp. resting spores"