Litho-biostratigraphie, microfacies et sequences stratigraphiques dans le Turonien d'un secteur de Tunisie centrale

Robaszynski, Francis; Caron, M.; Dupuis, Claire; Amédro, Francis; Calandra, F.; Deloffre, R.; Gartner, Stefan; Donoso, J. M. González; Harbendol, J.; Linares, Dolores

doi:10.2113/gssgfbull.vi.6.1011

Cited by 23 publications

(35 citation statements)

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“…For the figures 9.1, 9.3, and 9.5 scale bar = 200 µm, for all other figures scale bar = 100 µm. Age and correlation: The D. concavata Zone corresponds to the zone of the same name recognized by Sliter (1989), Robaszynski & Caron (1995), Premoli Silva & Sliter (1995), Robaszynski et al (2000), Premoli Silva & Verga (2004), Peryt (1980) and Babazadeh et al (2007). It corresponds to the upper part of the D. primitiva Zone and the D. concavata Zone of Dimitrova & Valchev (2007); to the joint interval from the upper part of the M. tarfayensis Zone to the lower part of the D. asymetrica Zone of Ion & Szasz (1994).…”

Section: Age and Correlationmentioning

confidence: 94%

Upper Cretaceous volcanoclastic-sedimentary formations in the Timok Eruptive Area (eastern Serbia): new biostratigraphic data from planktonic foraminifera

Ljubović-Obradović¹,

Carević²,

Mirković³

et al. 2011

Geologica Carpathica

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Section: Age and Correlationmentioning

confidence: 94%

Upper Cretaceous volcanoclastic-sedimentary formations in the Timok Eruptive Area (eastern Serbia): new biostratigraphic data from planktonic foraminifera

Ljubović-Obradović¹,

Carević²,

Mirković³

et al. 2011

Geologica Carpathica

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“…Wonders (1980) proposed that C-T boundary corresponds to the base of the Whiteinella archeocretacea zone. But subsequent studies (Caron 1985;Robaszynski et al 1993;Robaszynski & Caron 1995;Hardenbol et al 1998;Premoli-Silva & Verga 2004;Zaghbib-Turki & Soua 2013) indicated that this boundary is placed in the middle of the W. archeocrheetacea zone (Fig. 4).…”

Section: Biostratigraphymentioning

confidence: 96%

Planktonic foraminiferal turnover across the Cenomanian – Turonian boundary (OAE2) in the northeast of the Tethys realm, Kopet-Dagh Basin

Kalanat¹,

Vahidinia²,

Vaziri‐Moghaddam³

et al. 2016

Geologica Carpathica

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Two Late Cenomanian -Early Turonian (C-T) intervals of the eastern part of the Kopet-Dagh basin, NE Iran have been investigated to evaluate the response of planktonic foraminifera to the geological event OAE2. The Gharesu and Taherabad sections with the thicknesses of 30 m and 22.5 m are composed of shale and marl interbedded with glauconitic sandstone. Three biozones Rotalipora cushmani, Whiteinella archaeocretacea and Helvetoglobotruncana helvetica were recognized based on study of planktonic foraminifera, in these sections. We observed the patterns of planktonic foraminiferal assemblage changes around the C-T boundary and divided this succession into several successive intervals. This study confirms that OAE2 was a long term event. A gradual perturbation in the study successions starts in the interval 1 with low abundance and diversity of planktonic foraminifera. An enhanced oxygen minimum zone (OMZ) occurs in the interval 3 which coincides with a temporary absence of planktonic foraminifera and sedimentation of framboidal pyrite. High diversity of planktonic foraminifera and appearance of new genera in the interval 5 indicate return of normal conditions to the basin. A significant short-term sea surface temperature cooling is also indicated by planktonic foraminiferal turnover and carbonate contents in the interval 2 which is comparable with other parts of the Tethys Ocean, Boreal sea and Atlantic region.

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“…However, it appears that insofar as ma-crofossil time-markers are concerned, ammonites are both the most abundant paleontologic material and the most determinative in indicating platform deposits, be they proximal or distal (AMÉDRO in ROBASZYNSKI et alii, 1990, 1994.…”

Section: -Choices Made In Constructing the Table (Table)mentioning

confidence: 99%

Zonation by ammonites and foraminifers of the Vraconnian-Turonian interval: A comparison of the Boreal and Tethyan domains (NW Europe / Central Tunisia)

Amédro¹,

Robaszynski²

2008

Carnets De Géologie (Notebooks on Geology)

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Abstract: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.Key Words: Cretaceous; Albian; Vraconnian; Cenomanian; Turonian; ammonites; foraminifers; zones; zonation; Tethys.

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Litho-biostratigraphie, microfacies et sequences stratigraphiques dans le Turonien d'un secteur de Tunisie centrale

Cited by 23 publications

References 0 publications

Upper Cretaceous volcanoclastic-sedimentary formations in the Timok Eruptive Area (eastern Serbia): new biostratigraphic data from planktonic foraminifera

Upper Cretaceous volcanoclastic-sedimentary formations in the Timok Eruptive Area (eastern Serbia): new biostratigraphic data from planktonic foraminifera

Planktonic foraminiferal turnover across the Cenomanian – Turonian boundary (OAE2) in the northeast of the Tethys realm, Kopet-Dagh Basin

Zonation by ammonites and foraminifers of the Vraconnian-Turonian interval: A comparison of the Boreal and Tethyan domains (NW Europe / Central Tunisia)

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