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Cyclicité climatique à la limite Dévonien-Carbonifère et configuration orbitale de l'évènement de Hangenberg en Belgique

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Franck, Léonard ULiège
Promotor(s) : Da Silva, Anne-Christine ULiège ; Denayer, Julien ULiège
Date of defense : 13-Jan-2022 • Permalink : http://hdl.handle.net/2268.2/13832
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Title : Cyclicité climatique à la limite Dévonien-Carbonifère et configuration orbitale de l'évènement de Hangenberg en Belgique
Translated title : [en] Climate cyclicity at the Devonian-Carboniferous boundary and orbital configuration of the Hangenberg event in Belgium
Author : Franck, Léonard ULiège
Date of defense  : 13-Jan-2022
Advisor(s) : Da Silva, Anne-Christine ULiège
Denayer, Julien ULiège
Committee's member(s) : Boulvain, Frédéric ULiège
De Vleeschouwer, David 
Language : French
Number of pages : 40
Keywords : [en] Hangenberg Crisis / Milankovitch cycles / Namur-Dinant Basin / Devonian-Carboniferous boundary / Limestone-shale rythmites
Discipline(s) : Physical, chemical, mathematical & earth Sciences > Earth sciences & physical geography
Target public : Researchers
Professionals of domain
Student
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en sciences géologiques, à finalité approfondie
Faculty: Master thesis of the Faculté des Sciences

Abstract

[en] In order to better understand the climatic change between the Devonian (greenhouse climate) and the Carboniferous (icehouse climate) and the duration of the phenomena that led to the Hangenberg crisis, we conducted a cyclostratigraphic study on the Chanxhe sections, in south-eastern Belgium. These sections, dated to the Upper Famennian and Lower Tournaisian, show rhythmic limestone/shale alternations deposited on a continental shelf in an open neritic environment. In addition, they expose the Hangenberg Black Shale and the Hangenberg Sandstone. Supported by lithological and geochemical analysis, spectral analysis has revealed nine to ten short eccentricity cycles and precession cycles grouped by 6 to 8. The total duration of the sections is estimated to be 1-1.05 Myr and the Hangenberg Black Shale duration to be about 130 kyr.


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Author

  • Franck, Léonard ULiège Université de Liège > Master en sc. géologiques, à fin.

Promotor(s)

Committee's member(s)

  • Boulvain, Frédéric ULiège Université de Liège - ULiège > Département de géologie > Pétrologie sédimentaire
    ORBi View his publications on ORBi
  • De Vleeschouwer, David
  • Total number of views 27
  • Total number of downloads 1










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