International Geological Correlation Programme


Project 494


Dysoxic to oxic change in oceanic sedimentation during the middle Cretaceous (Tethyan Realm)








Bremen, Germany


November 17 – 18, 2003













Dr. Jens Wendler

Bremen University

P.O. Box 330 440

28334 Bremen, Germany

phone: ++49 421 218 9682

fax: ++49 421 218 4451


Project - Outline


This IGCP Young scientists project was started in 2003 and aims at gaining knowledge about the paleoceanographic conditions which initiated oxic sedimentation occasionally intercalated in the Mid-Cretaceous dysoxic/anoxic deep sea sedimentation. These sedimentary changes first manifested themself as oscillations between dysoxic and oxic conditions, and finally led to the thick Upper Cretaceous marine red bed sequences. Particularly, immediately after the Selli Horizon (Oceanic Anoxic Event 1a, 120 Ma) marine red beds (mainly carbonate and clay) were deposited at certain locations and appear to be abrupt intercalations during the black shale mode. Previous studies show that these Aptian-Cenomanian oceanic red beds occur in the central Apennines, Southern and Austrian Alps, Slovakian and Polish Carpathians, and in the Caucasus mountains. Such middle Cretaceous red beds are expected to occur also on the Tibetan Plateau. 


Dates and location


The workshop will be held in Bremen, Germany, November 17 -18, 2003. Participants are adviced to arrive to Bremen on November 16 and depart on November 19. Bremen airport can be reached directly from Frankfurt, Berlin and Amsterdam. Abundant train connections are available to reach Bremen central station.


The workshop venue is Hotel Horner Eiche. It is reached easily by tram. Tickets can be bought on the tram. From the airport take tram No. 6 to the station Central train station and change into tram 4 (direction: Borgfeld). Take No. 4 to the station Kopernicus Strasse.


Address: Im Hollergrund 1, 28357 Bremen-Horn;


Alternatively, we can provide a shuttle service from the airport to the hotel so please send us your flight data.


By car: Leave motorway A 27 at exit 19 Horn-Lehe / Universität and follow the direction Horn-Lehe. After passing 2 traffic lights (1 km) you find the hotel to your left (before you reach a 3. traffic light).


Bremen is a medium-sized northern German town with a charming medieval center, a wide range of scientific institutions and museums, and it is the home of Becks beer. November is late autumn and brings rather rainy days so don´t forget warm clothing and a rain coat. 


Workshop items


Session 1: Current results and news from the IGCP 463 meeting Turkey

Session 2: Posters

Session 3: planning of working groups and targets, field work reports

            - Central Apennines, Alps

            - Polish Carpathians

            - Caucasus Mountains

Session 4: black shales/red beds: stratigraphy, characteristics, differences, methods

Session 5: meeting of the Tibet working groups: organisation of the spring 2004 field work




Bremen University

UNESCO IGCP 494 fund

Chinese Science Foundation

German Science Foundation





Jens Wendler; Xiumian Hu


Oral Presentations


We plan to do a talk session where results of research related to the IGCP494 project should be presented. Also, news from the IGCP463 workshop in Turkey are welcome as well as project ideas.

Talk time should be 15 minutes followed by 10 minutes discussion.




Accomodation will be in the hotel “Horner Eiche”. The meetings will be held in the same hotel. Lodging and meals during the meeting are arranged by the organisers and are covered by the registration costs. Rooming is generally Single if not requested otherwise.  




If you request financial assistance, please send an informal application for grant to Jens Wendler (e-mail: Funds to reduce travel costs are available at a limited amount for participants from under-developed countries and invited colleagues. Participants who successfully applied for funding will be informed by the organisers and are requested to document their costs upon arrival.


Expenses and payment


The costs of the workshop are 250 . Please, submit your payment to:


Bremen University

Bank: Bremer Landesbank

Account number: 1070 500 022

Routing code: 290 500 00

Purpose: EK 50010100, IA (40500161), IGCP494 – workshop


NOTE! The numbers in the purpose line are very important!


Registration and Deadline


Deadline for payment, registration, and requests for financial support is October 15, 2003. 

To register, please send me an e-mail with the subject: IGCP494 registration, and the following information:







Zip / postal code:






Title of talk:

Title of poster:

Do you request a double room (to share with:…)?: