First IGCP-652 Meeting in Bremen

Here is a video of the field trip in Germany (thanks to D. De Vleeschouwer, P. Könikshof, T. Becker and S. Hartenfels for running the field trip and to A. Van der Boon for making the video).


‘Cyclostratigraphy Intercomparison Project’.

Proposed by Matthias Sinnesael and co-authors



The IGCP-652 has been accepted:

Proposed project :

Reading geologic time in Paleozoic sedimentary rocks: the need for an integrated stratigraphy.


Major events punctuated the Paleozoic: ecological crises and diversifications, shifts in ocean chemistry, climatic changes, etc. One of the key-obstacles in understanding these events lays in the difficulty of providing precise estimates of the duration represented by a sequence of Paleozoic sedimentary rocks. This lack of temporal precision severely hampers the evaluation of forcing mechanisms and rates of climatic, ecological or biogeochemical changes in the Paleozoic. It is therefore essential to first improve the Paleozoic timescale to then unravel the history of the Paleozoic Earth system.
Cyclostratigraphy is a powerful chronometer, based on the detection of the Milankovitch cycles in the sedimentary record. Those cycles result from periodic variations in the Earth-Sun system, affecting the distribution of solar energy over the Planet influencing Earth’s climate on time scales between 104 and 106 years. Through the integration of this astronomical time scale with biostratigraphy and radio-isotopic dating, this project intends to document the environmental evolution during the Paleozoic with a focus on the Ordovician to Devonian (485 – 359 million years). It gathers participants (> 200) from all over the world (36 countries) and promotes the participation of young scientists and scientists from developing countries.


Good to know....

If you are interested to join the project, please send an email to Your contact will be added to our participant list and you will receive project update.

This project is of course also your project, so please, if you have any ideas, comments, questions, if you want to organize something and need fundings, etc.... please contact us.

This project will propose a Newsletter (through the mailing list) to keep you update of our activities and hot topics related to the research project. If you have an event related to the research project or anything that could be mentioned in the newsletter, please, let us know.

All publications related to the project will be mentioned on the website and when possible it will be possible to download the pdf directly from the website.

IGCP projects are well known banner of global geoscientist networking. Statement in grant proposal that your project is associated with this IGCP prooves that your research is part of a global network. If you get funded under our banner, please let us know (

If you are associated with the project and you publish (paper, presentations and posters) this research, please aknowledge the IGCP-652, it is important because the project will be annually evaluated for future continuation and fundings. The best way to receive these fundings and to keep the project running in the best conditions is to have a good visibility. So please don't forget to mention "This paper is a contribution to the International Geoscience Programme (IGCP) Project 652 – Reading geologic time in Paleozoic sedimentary rocks"

In October we must provide to UNESCO a complete annual report.... you will be contacted, to send us a list of your publications, posters, presentations, scientific outreach, field activities, sampling, etc., which will help to make this annual report "Great Again".... we would greatly appreciate your cooperation at this time....










Université de Liège - Faculté des Sciences - Département de Géologie - Pétrologie sédimentaire