Correlation of reefal Oxfordian episodes and climatic implications in the eastern Paris Basin (France) - Aix-Marseille Université Access content directly
Journal Articles Terra Nova Year : 2006

Correlation of reefal Oxfordian episodes and climatic implications in the eastern Paris Basin (France)

Abstract

Oxfordian reefal episodes of Lorraine and Burgundy have a long time been considered as contemporaneous. Biostratigraphic data and sequential evolutions peculiar to each region indicate their structural autonomy during Oxfordian times. A north-south-oriented well-logging transect shows that, during the Middle Oxfordian, a shallow reefal platform developed in Lorraine while thin deeper deposits occurred in Burgundy. In spite of their different ages, reefal episodes of Middle Oxfordian in Lorraine and Upper Oxfordian in Burgundy exhibit a broadly similar vertical evolution of coral communities. During the Late Oxfordian, the contemporaneous occurrence of a diversified assemblage in the Burgundy region, a colder coral assemblage characterized by eurytopic genera and the decrease in seawater isotopic temperatures in Lorraine can be explained by a shift in trophic conditions, a climatic change related to structural rearrangements in this strategic place and a modification of oceanic circulations between the arctic and the Tethyan regions.

Dates and versions

hal-01435930 , version 1 (20-01-2017)

Identifiers

Cite

Cédric Carpentier, Bertrand Martin-Garin, Bernard Lathuilière, Serge Ferry. Correlation of reefal Oxfordian episodes and climatic implications in the eastern Paris Basin (France). Terra Nova, 2006, 18 (3), pp.191-201. ⟨10.1111/j.1365-3121.2006.00679.x⟩. ⟨hal-01435930⟩
95 View
1 Download

Altmetric

Share

Gmail Facebook X LinkedIn More