Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms

Mohammad Javad Razmjooei; Nicolas Thibault; Anoshiravan Kani; Azam Mahanipour; Myriam Boussaha; Christoph Korte

doi:10.1127/0078-0421/2014/0045

Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms

Mohammad Javad Razmjooei, Nicolas Thibault^*, Anoshiravan Kani, Azam Mahanipour, Myriam Boussaha, Christoph Korte

^*Corresponding author for this work

Geology

19 Citations (Scopus)

Abstract

Calcareous nannofossil biostratigraphy and stable isotope stratigraphy have been investigated in the Shahneshin section of the Gurpi Formation from the Zagros Basin (Iran). The results show that the Gurpi Formation spans the late early Coniacian to late Thanetian. The age-model shows that the Shahneshin section spans the Coniacian to mid-Campanian with a good continuity whereas condensation is highlighted in the late Campanian, across the Campanian/Maastrichtian boundary and in the late Maastrichtian. Extreme condensation is recorded after the Cretaceous-Paleogene boundary with the complete absence of the Danian, and the Selandian and lower Thanetian being comprised in only 6 m at the top of the Gurpi Formation. Correlation of the carbon-isotope profile with other reference curves allows the recognition of several Late Cretaceous excursions at the Shahneshin section such as the Beeding, White Fall, Kingsdown, Michel Dean, Haven Brow, Horseshoe Bay, Buckle, Hawks Brow, Santonian/Campanian boundary (SCBE) and Campanian/Maastrichtian boundary (CMBE) events. Correlation to a recently proposed global δ¹³C stack for the Late Cretaceous points to a major mismatch of this compilation with magnetostratigraphy in the Santonian-early Campanian interval. The δ¹³C correlation, supported by calcareous nannofossil biostratigraphy, brings insights into: (1) the position of the Coniacian/Santonian, Santonian/Campanian and Campanian/Maastrichtian boundaries with respect to carbon-isotope stratigraphy and calcareous nannofossil bio-horizons, and (2) their correlation between the Tethyan and Boreal realms.

Original language	English
Journal	Newsletters on Stratigraphy
Volume	47
Issue number	2
Pages (from-to)	183-209
Number of pages	27
ISSN	0078-0421
DOIs	https://doi.org/10.1127/0078-0421/2014/0045
Publication status	Published - 2014

Keywords

Calcareous nannofossil biostratigraphy
Carbon-isotope stratigraphy
Late cretaceous
Zagros

Access to Document

10.1127/0078-0421/2014/0045

http://www.scopus.com/inward/record.url?scp=84902126128&partnerID=8YFLogxK

Fingerprint

Dive into the research topics of 'Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms'. Together they form a unique fingerprint.

Cite this

Razmjooei, M. J., Thibault, N., Kani, A., Mahanipour, A., Boussaha, M., & Korte, C. (2014). Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms. Newsletters on Stratigraphy, 47(2), 183-209. https://doi.org/10.1127/0078-0421/2014/0045

Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran) : consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms. / Razmjooei, Mohammad Javad; Thibault, Nicolas; Kani, Anoshiravan et al.

In: Newsletters on Stratigraphy, Vol. 47, No. 2, 2014, p. 183-209.

Research output: Contribution to journal › Journal article › Research › peer-review

Razmjooei, MJ, Thibault, N, Kani, A, Mahanipour, A, Boussaha, M & Korte, C 2014, 'Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms', Newsletters on Stratigraphy, vol. 47, no. 2, pp. 183-209. https://doi.org/10.1127/0078-0421/2014/0045

Razmjooei MJ, Thibault N, Kani A, Mahanipour A, Boussaha M, Korte C. Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms. Newsletters on Stratigraphy. 2014;47(2):183-209. doi: 10.1127/0078-0421/2014/0045

Razmjooei, Mohammad Javad ; Thibault, Nicolas ; Kani, Anoshiravan et al. / Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran) : consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms. In: Newsletters on Stratigraphy. 2014 ; Vol. 47, No. 2. pp. 183-209.

@article{dfa77d52395846b59ec83c098049ae2c,

title = "Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran): consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms",

abstract = "Calcareous nannofossil biostratigraphy and stable isotope stratigraphy have been investigated in the Shahneshin section of the Gurpi Formation from the Zagros Basin (Iran). The results show that the Gurpi Formation spans the late early Coniacian to late Thanetian. The age-model shows that the Shahneshin section spans the Coniacian to mid-Campanian with a good continuity whereas condensation is highlighted in the late Campanian, across the Campanian/Maastrichtian boundary and in the late Maastrichtian. Extreme condensation is recorded after the Cretaceous-Paleogene boundary with the complete absence of the Danian, and the Selandian and lower Thanetian being comprised in only 6 m at the top of the Gurpi Formation. Correlation of the carbon-isotope profile with other reference curves allows the recognition of several Late Cretaceous excursions at the Shahneshin section such as the Beeding, White Fall, Kingsdown, Michel Dean, Haven Brow, Horseshoe Bay, Buckle, Hawks Brow, Santonian/Campanian boundary (SCBE) and Campanian/Maastrichtian boundary (CMBE) events. Correlation to a recently proposed global δ13C stack for the Late Cretaceous points to a major mismatch of this compilation with magnetostratigraphy in the Santonian-early Campanian interval. The δ13C correlation, supported by calcareous nannofossil biostratigraphy, brings insights into: (1) the position of the Coniacian/Santonian, Santonian/Campanian and Campanian/Maastrichtian boundaries with respect to carbon-isotope stratigraphy and calcareous nannofossil bio-horizons, and (2) their correlation between the Tethyan and Boreal realms.",

keywords = "Calcareous nannofossil biostratigraphy, Carbon-isotope stratigraphy, Late cretaceous, Zagros",

author = "Razmjooei, {Mohammad Javad} and Nicolas Thibault and Anoshiravan Kani and Azam Mahanipour and Myriam Boussaha and Christoph Korte",

year = "2014",

doi = "10.1127/0078-0421/2014/0045",

language = "English",

volume = "47",

pages = "183--209",

journal = "Newsletters on Stratigraphy",

issn = "0078-0421",

publisher = "GebruederBorntraeger Verlagsbuchhandlung",

number = "2",

}

TY - JOUR

T1 - Coniacian-maastrichtian calcareous nannofossil biostratigraphy and carbon-isotope stratigraphy in the Zagros Basin (Iran)

T2 - consequences for the correlation of late cretaceous stage boundaries between the Tethyan and Boreal realms

AU - Razmjooei, Mohammad Javad

AU - Thibault, Nicolas

AU - Kani, Anoshiravan

AU - Mahanipour, Azam

AU - Boussaha, Myriam

AU - Korte, Christoph

PY - 2014

Y1 - 2014

N2 - Calcareous nannofossil biostratigraphy and stable isotope stratigraphy have been investigated in the Shahneshin section of the Gurpi Formation from the Zagros Basin (Iran). The results show that the Gurpi Formation spans the late early Coniacian to late Thanetian. The age-model shows that the Shahneshin section spans the Coniacian to mid-Campanian with a good continuity whereas condensation is highlighted in the late Campanian, across the Campanian/Maastrichtian boundary and in the late Maastrichtian. Extreme condensation is recorded after the Cretaceous-Paleogene boundary with the complete absence of the Danian, and the Selandian and lower Thanetian being comprised in only 6 m at the top of the Gurpi Formation. Correlation of the carbon-isotope profile with other reference curves allows the recognition of several Late Cretaceous excursions at the Shahneshin section such as the Beeding, White Fall, Kingsdown, Michel Dean, Haven Brow, Horseshoe Bay, Buckle, Hawks Brow, Santonian/Campanian boundary (SCBE) and Campanian/Maastrichtian boundary (CMBE) events. Correlation to a recently proposed global δ13C stack for the Late Cretaceous points to a major mismatch of this compilation with magnetostratigraphy in the Santonian-early Campanian interval. The δ13C correlation, supported by calcareous nannofossil biostratigraphy, brings insights into: (1) the position of the Coniacian/Santonian, Santonian/Campanian and Campanian/Maastrichtian boundaries with respect to carbon-isotope stratigraphy and calcareous nannofossil bio-horizons, and (2) their correlation between the Tethyan and Boreal realms.

AB - Calcareous nannofossil biostratigraphy and stable isotope stratigraphy have been investigated in the Shahneshin section of the Gurpi Formation from the Zagros Basin (Iran). The results show that the Gurpi Formation spans the late early Coniacian to late Thanetian. The age-model shows that the Shahneshin section spans the Coniacian to mid-Campanian with a good continuity whereas condensation is highlighted in the late Campanian, across the Campanian/Maastrichtian boundary and in the late Maastrichtian. Extreme condensation is recorded after the Cretaceous-Paleogene boundary with the complete absence of the Danian, and the Selandian and lower Thanetian being comprised in only 6 m at the top of the Gurpi Formation. Correlation of the carbon-isotope profile with other reference curves allows the recognition of several Late Cretaceous excursions at the Shahneshin section such as the Beeding, White Fall, Kingsdown, Michel Dean, Haven Brow, Horseshoe Bay, Buckle, Hawks Brow, Santonian/Campanian boundary (SCBE) and Campanian/Maastrichtian boundary (CMBE) events. Correlation to a recently proposed global δ13C stack for the Late Cretaceous points to a major mismatch of this compilation with magnetostratigraphy in the Santonian-early Campanian interval. The δ13C correlation, supported by calcareous nannofossil biostratigraphy, brings insights into: (1) the position of the Coniacian/Santonian, Santonian/Campanian and Campanian/Maastrichtian boundaries with respect to carbon-isotope stratigraphy and calcareous nannofossil bio-horizons, and (2) their correlation between the Tethyan and Boreal realms.

KW - Calcareous nannofossil biostratigraphy

KW - Carbon-isotope stratigraphy

KW - Late cretaceous

KW - Zagros

U2 - 10.1127/0078-0421/2014/0045

DO - 10.1127/0078-0421/2014/0045

M3 - Journal article

AN - SCOPUS:84902126128

SN - 0078-0421

VL - 47

SP - 183

EP - 209

JO - Newsletters on Stratigraphy

JF - Newsletters on Stratigraphy

IS - 2

ER -