Deciphering the history of climate and sea level in the Kimmeridgian deposits of Bure (eastern Paris Basin) - Archive ouverte HAL Access content directly
Journal Articles Palaeogeography, Palaeoclimatology, Palaeoecology Year : 2015

Deciphering the history of climate and sea level in the Kimmeridgian deposits of Bure (eastern Paris Basin)

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Bernard Lathuilière
  • Function : Author
  • PersonId : 977530
Daniele Bartier
  • Function : Author
  • PersonId : 954441
Monique Bonnemaison
  • Function : Author
Annick Boullier
  • Function : Author
Cédric Carpentier
  • Function : Author
  • PersonId : 954531
Marcel Elie
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  • PersonId : 756716
  • IdRef : 117838861
Danièle Grosheny
  • Function : Author
Yann Hautevelle
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  • PersonId : 758309
  • IdRef : 097429015
Vincent Huault
Fabrice Malartre
  • Function : Author
Laetitia Nori
  • Function : Author
Alain Trouiller
  • Function : Author

Abstract

An integrated stratigraphic study was conducted on a Kimmeridgian succession of 3rd-order cycles including marls and limestones in a shelf context at Bure (Paris Basin). The study was possible due to the exceptional opportunity provided by well-boring activities related to the construction of an underground laboratory of the French National Agency for Radioactive Waste Management (ANDRA). Studies of macrofossils, microfossils, sedimentology, clay mineralogy, isotopic composition (C, O) of shells and organic molecular geochemistry lead to a detailed description of the stratigraphic column, which allows us to address the history of sea-level and climate changes. Six transgressive-regressive cycles are recognised in the studied Kimmeridgian succession. In these 3rd-order cycles, the deepest environments are systematically represented by marls and organic-rich sediments whilst the shallowest are represented by limestones. These cycles do not correspond to changes in temperatures or carbonate production rates at a regional or global scale. On the contrary, long-term palaeontological, sedimentological, and geochemical changes during the Early Kimmeridgian are interpreted as climatically induced. These climatic changes are considered as responsible for bringing significant granular carbonate production to an end, in contrast to carbonate mud that was deposited in alternation with marls throughout the Late Kimmeridgian.
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hal-01281811 , version 1 (02-03-2016)

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Bernard Lathuilière, Daniele Bartier, Monique Bonnemaison, Annick Boullier, Cédric Carpentier, et al.. Deciphering the history of climate and sea level in the Kimmeridgian deposits of Bure (eastern Paris Basin). Palaeogeography, Palaeoclimatology, Palaeoecology, 2015, 433, pp.20-48. ⟨10.1016/j.palaeo.2015.05.007⟩. ⟨hal-01281811⟩
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