Coupled imprints of tropical climate and recurring emergence on reservoir evolution of a mid Cretaceous carbonate ramp, Zagros Basin, southwest Iran

Rahimpour‐Bonab, Hossain; Mehrabi, Hamzeh; Enayati-Bidgoli, Amirhossein; Omidvar, Mahboobeh

doi:10.1016/j.cretres.2012.02.012

Cited by 88 publications

(52 citation statements)

References 40 publications

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“…Facies analysis of the Upper Cretaceous Sarvak and Ilam formations has been the subject of few previous studies (e.g., Ghabeishavi et al 2009Ghabeishavi et al , 2010Rahimpour-Bonab et al 2012a;Mehrabi et al 2014). However, nearly all of the researches have investigated these formations in the Dezful Embayment.…”

Section: Facies Analysismentioning

confidence: 98%

“…7 Two dimensional correlation of sedimentological logs of the studied wells selected from the Dezful Embayment and the Fars Province (correlation line 1) and Sirri fields associations in the eastern Persian Gulf (correlation line 2). Third-order depositional sequences and rudist zones (R) of the Sarvak Formation are also shown (see Rahimpour-Bonab et al 2012a for sequence stratigraphic interpretation). Middle Turonian disconformity is considered as datum.…”

Section: Thickness Variations Of Upper Cretaceous Sequencesmentioning

confidence: 98%

“…Previous studies have shown that the Upper Cretaceous carbonate reservoirs were deposited on ramp-like carbonate platforms surrounding the intrashelf basins/troughs in various parts of south and southwest Iran (Kheradpir 1975;Bolz 1977;Rahimpour-Bonab et al 2012a;Mehrabi et al 2014). It has been suggested that during this time, a ramp-type depositional regime associated with shelf carbonates became established and gradually surrounded most parts of the Middle East in response to the eustatic sea-level rise (Murris 1980;Koop and Stoneley 1982).…”

Section: Outer Ramp and Basinal Faciesmentioning

confidence: 99%

“…The oligosteginid-bearing facies are reported from the Sarvak Formation in various parts of the Zagros area (e.g., Ghabeishavi et al 2010;Rahimpour-Bonab et al 2012a;Mehrabi and Rahimpour-Bonab 2014). They are also considered as a biofacies, namely Oligostegina facies (biozone No.…”

Section: Outer Ramp and Basinal Faciesmentioning

confidence: 99%

“…c Schematic cross sections across the SW Iran illustrating tectonic setting of the study area during the Upper Cretaceous (adapted with some modifications from Ziegler 2001; Letouzey and Sherkati 2004) Buchem et al 2001;Sepehr and Cosgrove 2005;Grelaud et al 2006;Ahmadhadi et al 2007;Farzadi and Hesthmer 2007). Diagenetic history and reservoir properties of the Upper Cretaceous deposits were investigated in the context of tectonic setting and palaeoclimatic condition (Taghavi et al 2006;Hajikazemi et al 2010;Rahimpour-Bonab et al 2012a, b, 2013Mehrabi and Rahimpour-Bonab 2014;Mehrabi et al 2014Mehrabi et al , 2015.…”

mentioning

confidence: 99%

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Controls on depositional facies in Upper Cretaceous carbonate reservoirs in the Zagros area and the Persian Gulf, Iran

Mehrabi

Rahimpour‐Bonab

Hajikazemi

et al. 2015

Facies

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Section: Facies Analysismentioning

confidence: 98%

Section: Thickness Variations Of Upper Cretaceous Sequencesmentioning

confidence: 98%

Section: Outer Ramp and Basinal Faciesmentioning

confidence: 99%

Section: Outer Ramp and Basinal Faciesmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Controls on depositional facies in Upper Cretaceous carbonate reservoirs in the Zagros area and the Persian Gulf, Iran

Mehrabi

Rahimpour‐Bonab

Hajikazemi

et al. 2015

Facies

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Isotopic and Sedimentologic Proxies of Palaeoexposure Events and Oceanic Anoxic Event 2 (OAE2) in the Cenomanian–Turonian Neritic Carbonates (the Sarvak Formation) in the Abadan Plain, Zagros Basin, Iran

Yahyaei,

Mehrabi,

Abbasi

2024

Geological Journal

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The shallow marine carbonate deposits of the Sarvak Formation have been deposited in an active tectonic setting under warm and humid climatic conditions during the Cenomanian–Turonian (C–T). The focus of this study is on the sedimentological and geochemical analysis of this formation in the Abadan Plain, Zagros Basin. Petrographic studies led to the identification of five microfacies deposited in the restricted lagoon, tidal flat, reef, shoal and open marine environments. They indicate deposition of the Sarvak Formation on a homoclinal ramp–like carbonate platform. Sequence stratigraphy studies have led to the identification of two third‐order sequences named Cenomanian sequence (DSS‐1) and Turonian sequence (DSS‐2), along with six fourth‐order sequences. The upper boundary of DSS‐1, known as the C–T disconformity (CT‐ES), is subjected to meteoric diagenetic processes, as evidenced by meteoric dissolution (karstification), collapsed brecciation and the development of palaeosols. The upper SB of DSS‐2 is marked by the mid‐Turonian disconformity (mT‐ES), characterised by silicification, brecciation, meteoric dissolution and iron oxide staining of core samples. The significant decreases in δ18Ocarb and δ13Ccarb values indicate a strong effect of meteoric diagenesis beneath the palaeoexposure surfaces. The calculation of sea surface temperatures (SSTs) based on the δ18Ocarb values measured from the unaltered carbonates indicated that the average SST for the C–T is 31.8°C and 30.9°C in K‐01 and K‐02 wells, respectively. A decrease of about 1.5°C is measured during the C–T transition, which indicate a cooling trend of the Late Cretaceous in the Tethyan realm. The carbon isotopic pattern observed in the analysed sections shows correlation with previous studies conducted in the Tethyan region. Additionally, the isotopic composition indicative of Oceanic Anoxic Event 2 (OAE2) is identified around the C–T boundary. Nevertheless, the signature of OAE2 has been somewhat obscured by diagenetic processes associated with C–T palaeoexposure.

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A Fast-Track Method to Estimate Reservoir Porosities from Petrophysical and Post-stack Seismic Data

Asgharzadeh,

Mehdipour,

Sadeghtabaghi

et al. 2024

Springer Series in Geomechanics and Geoengineering

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Coupled imprints of tropical climate and recurring emergence on reservoir evolution of a mid Cretaceous carbonate ramp, Zagros Basin, southwest Iran

Cited by 88 publications

References 40 publications

Controls on depositional facies in Upper Cretaceous carbonate reservoirs in the Zagros area and the Persian Gulf, Iran

Controls on depositional facies in Upper Cretaceous carbonate reservoirs in the Zagros area and the Persian Gulf, Iran

Isotopic and Sedimentologic Proxies of Palaeoexposure Events and Oceanic Anoxic Event 2 (OAE2) in the Cenomanian–Turonian Neritic Carbonates (the Sarvak Formation) in the Abadan Plain, Zagros Basin, Iran

A Fast-Track Method to Estimate Reservoir Porosities from Petrophysical and Post-stack Seismic Data

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