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Université de Fribourg

Paleoenvironmental reconstruction of Challenger Mound initiation in the Porcupine Seabight, NE Atlantic

Raddatz, Jacek ; Rüggeberg, Andres ; Margreth, Stephan ; Dullo, Wolf-Christian ; IODP Expedition 307 Scientific Party

In: Marine Geology, 2011, vol. 282, no. 1-2, p. 79-90

The understanding of the paleoenvironment during initiation and early development of deep cold-water coral carbonate mounds in the NE Atlantic is currently a focus of international research. The Integrated Ocean Drilling Program (IODP) Expedition 307 drilled the 155 m high Challenger Mound in the Porcupine Seabight (SW off Ireland) in order to investigate for the first time sediments from the...

Université de Fribourg

Carbon- and oxygen-isotope records of palaeoenvironmental and carbonate production changes in shallow-marine carbonates (Kimmeridgian, Swiss Jura)

Colombié, Claude ; Lécuyer, Christophe ; Strasser, André

In: Geological Magazine, 2011, vol. 148, no. 1, p. 133-153

Carbon- and oxygen-isotope ratios are commonly used to correlate shallow- and deep-marine successions. Carbon- and oxygen-isotope analyses were performed on bulk-carbonate samples from two Kimmeridgian sections of the Swiss Jura platform in order to correlate them with biostratigraphically well-dated coeval sections in the adjacent basin. On the platform, a general decrease in δ¹³C and...

Université de Fribourg

High-resolution stratigraphy of the Cenomanian–Turonian boundary interval at Pueblo (USA) and wadi Bahloul (Tunisia): stable isotope and bio-events correlation = Stratigraphie à haute résolution de la limite Cénomanien–Turonien sur les coupes de Pueblo (États-Unis) et de l'Oued Bahloul (Tunisie) : isotopes stables et corrélation des événements biologiques

Caron, Michèle ; Dall’Agnolo, Stephan ; Accarie, Hugues ; Barrera, Enriqueta ; Kauffman, Erle G. ; Amédro, Francis ; Robaszynski, Francis

In: Geobios, 2006, vol. 39, no. 2, p. 171-200

A high-resolution stratigraphy has been developed for the interval encompassing the Cenomanian–Turonian boundary (CTBI), by means of several lithological, biological and geochemical events. This work entails the study of two sections selected on the base of the completeness of their sedimentary record and their contrasting paleogeographical setting: (1) The Rock Canyon Anticline section...