Zonation by ammonites and foraminifers of the Vraconnian-Turonian interval: A comparison of the Boreal and Tethyan domains (NW Europe / Central Tunisia)
| Autor: | Francis Amédro, Francis Robaszynski |
|---|---|
| Přispěvatelé: | Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Faculté Polytechnique, UMONS, Carnets Geol., |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Mediterranean climate
Stratigraphy zones [ SDU.STU.ST ] Sciences of the Universe [physics]/Earth Sciences/Stratigraphy [SDE.MCG.CPE] Environmental Sciences/Global Changes/domain_sde.mcg.cpe [ SDE.MCG.CPE ] Environmental Sciences/Global Changes/domain_sde.mcg.cpe Cretaceous Foraminifera Paleontology zonation lcsh:Stratigraphy [SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry Cenomanian Tethys lcsh:QE701-760 lcsh:QE640-699 Ammonite ammonites biology lcsh:QE1-996.5 Macrofossil Geology Vraconnian Albian Turonian biology.organism_classification [ SDU.STU.GC ] Sciences of the Universe [physics]/Earth Sciences/Geochemistry language.human_language lcsh:Geology Boreal lcsh:Paleontology language [SDU.STU.ST] Sciences of the Universe [physics]/Earth Sciences/Stratigraphy foraminifers |
| Zdroj: | Carnets de Géologie, Vol CG2008, Iss L02, Pp 1-5 (2008) Carnets de Geologie Carnets de Geologie, Carnets de Geologie, 2008, CG2008 (L02), pp.1-5 |
| ISSN: | 1634-0744 1765-2553 |
| Popis: | International audience; Since the end of the 19th century the interval comprising the uppermost Upper Albian, the Cenomamian, the Turonian and the basal Coniacian has been subdivided, first into ammonite zones, then, beginning in the middle of the 20th century, into zones of planktonic foraminifera. These two groups, one macrofossil, the other microfossil, are particularly effective for bio-chronostratigraphy thanks to their rapid rates of evolution. But differences in the faunal makeup between the Boreal domain (northwestern Europe) and the Tethyan domain (Mediterranean) have for a long time hindered precise correlation of the two domains. Today, in a time interval covering about 16 million years, there are 29 ammonite zones in the Tethyan domain versus 24 in the Boreal one, of which 16 are common to both domains. For the planktonic foraminifera the Tethyan domain has 11 zones, the Boreal domain 10, with 7 in common. |
| Databáze: | OpenAIRE |
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