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Contenuto archiviato il 2022-12-23

Biostratigraphic correlation of shallow water sediments of Eocene age

Obiettivo



This networking project is focused on the reconstruction of the scientific infrastructures, i.e. micropalaeontology, necessary to date the widespread, epicontinental marine sediments of Palaeogene age by modern micropalaeontological methods necessary to support the correlation of sediments with sequence stratigraphy in the exploration of geological resources. By an exchange of literature and of material for comparison and by advanced training, the project will promote the use of a vehicular technical language common to the NIS and west European countries, provide common concepts on index taxa and on biostratigraphic units and, hence, produce revised range charts of index fossils as a base for an integrated Palaeogene time scale common to all relevant areas of the NIS and correlated with the regions outside the NIS. Particular problems to be solved are located at the Palaeocene-Eocene boundary (e.g. at the base of the Crimean key sections) and at the transition Middle Eocene to Late Eocene. The project will be coupled with the IGCP efforts to solve this problem within the whole Tethyan (Pakistan to Pans Basin) and transatlantic (Caribbean) realm.

This project will focus on larger (i.e. nummulitids in particular) and on selected groups of rapidly evolving smaller benthic foraminifera. It will collaborate closely with the INTAS project 93-2509, focused on palaeoclimatic aspects based on chemical and micropalaeontological analysis of planktonic and smaller benthic foraminiferans from the same time interval. This collaboration will avoid and hopefully solve the current contradictions in biostratigraphic dating between planktic and benthic time scales.

Research will focus first on material of the Crimean Key section and on Armenian material from complete sections present in Moscow museums. This will have to be completed by fieldwork focusing on gaps in the collected record according to the outcome of preliminary work on the collections available today.

The following results are expected: revision of biostratigraphic zonal age attributed to the Palaeogene sedimentary series in key sections in Ukraine, Crimea, Caucasus, Mangyshlak and northern Aral Sea, and in the Tadjikistan depression and the production of range charts; palaeobiogeographic interpretation of results, including palaeo-oceanographic patterns as worked out by the INTAS project 93-2509. A series of palaeobiogeographic maps will be produced.

An illustrated index fossil catalogue will be produced, helping to identify key index taxa from the NIS area, for publication.

Partial results on biostratigraphy will be written up as separate articles in the frame of IGCP activities. The overall results of the current project will be presented as monographs.

Invito a presentare proposte

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Meccanismo di finanziamento

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Coordinatore

Universität Basel
Contributo UE
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Indirizzo
Bernouillistraße 32
4056 Basel
Svizzera

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Partecipanti (3)