Planktonic foraminiferal biostratigraphy of the Upper Barremian and Aptian of Crimea

Brovina, Ekaterina

doi:10.1134/s086959381705001x

Cited by 12 publications

(3 citation statements)

References 15 publications

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“…blowi Zone (Brovina 2017). Globigerinelloides blowi, a marker species of G. blowi Zone was absent in the present study.…”

Section: Foraminifera Biostratigraphycontrasting

confidence: 72%

“…The depth interval ranging from 2782 to 2785 m contains Hedbergella ruka and Hedbergella excelsa (the index taxa). The taxa range from Late Barremian to early Aptian age (Brovina, 2017). The species of Hedbergella aptiana, Hedbergella tardita and Microhedbergella miniglobularis were also recovered from the succession of the same interval indicating Early Cretaceous (late Barremianearly Aptian) age (Figs.…”

Section: Foraminifera Biostratigraphymentioning

confidence: 93%

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Age of the earliest transgressive event in the Krishna-Godavari Basin, India: evidence from dinoflagellate cysts and planktonic foraminifera biostratigraphy

et al. 2020

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A combined biostratigraphic study of dinoflagellate cysts and foraminifera was carried out on Early Cretaceous subsurface well cutting sediments from well A (DNG) (2800-2746 m depth) from the Krishna-Godavari Basin, India. The last appearance datum of marker species of dinoflagellate cysts and planktonic foraminifera was considered for the construction of the biostratigraphic framework. The study shows dominance of Early Cretaceous marker dinoflagellate cysts Cassiculosphaeridia magna, Cribroperidinium perforans, Hystrichodinium voigtii, Kleithriasphaeridium eoinodes, and planktonic foraminifera Hedbergella aptiana, Hedbergella mitra, Hedbergella praelippa, Hedbergella tardita, Microhedbergella miniglobularis and Hedbergella mitra species. In addition to this, the dinoflagellate cyst data were compared with the dinoflagellate biozones of Austral and Tethyan provinces. Based on earlier micropalaeontological records from the Krishna-Godavari Basin and the present study, a latest Barremian-early Aptian age has been determined for the earliest marine transgression in the Krishna-Godavari Basin. The early marine incursion during late Barremian-earliest Aptian in the Krishna-Godavari Basin compared to Albian age in Cauvery Basin suggests the opening of east coast from north to south.

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“…blowi Zone (Brovina 2017). Globigerinelloides blowi, a marker species of G. blowi Zone was absent in the present study.…”

Section: Foraminifera Biostratigraphycontrasting

confidence: 72%

Section: Foraminifera Biostratigraphymentioning

confidence: 93%

Age of the earliest transgressive event in the Krishna-Godavari Basin, India: evidence from dinoflagellate cysts and planktonic foraminifera biostratigraphy

et al. 2020

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“…Microfossil identification was conducted using the classification systems developed by Dunham (1962) and Wilson (1975) ([8]; [9]). Foraminifers and calcareous algae were identified based on the methodologies outlined in publications by Premoli Silva and Verga (2004) [10], Husinec and Sokač(2006) [11], Afghah (2006) [12], Hosseini and Conrad (2008) [13], Parvaneh Nejad Shirazi (2009) [14], Schroeder et al (2010) [15], Bucur et al (2012) [16], Abyat et al (2016) [17], Afghah et al (2016) [7], Brovina (2017) [18], Coccioni (2019) [19], and Abedpour et al (2021) [20]. Comprehensive descriptions of the samples, both from field and laboratory analyses, were meticulously recorded and integrated into a detailed stratigraphic section.This study introduces an innovative workflow designed to provide a precise and comprehensive analysis, outlined as follows:…”

Section: Problem Formulationmentioning

confidence: 99%

Introduction to the Khalij Limestone Member Type Section in the Gadvan Formation of Iran: A Comprehensive Analysis Utilizing 38 Exploration and Development Wells and 1 Surface Section of Gadvan

Movahed,

Shemirani,

Sadeghi

2023

International Journal of Applied Sciences &Amp; Development

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The Khalij limestone member, well-known for its abundant benthic facies, is situated in the middle segment of the Gadvan shaly formation, boasting an average thickness of approximately 14 meters. This specific member is exclusively found below the surface, devoid of any exposed outcrops, and is characterized by the presence of easily identifiable orbitolinid limestone. Well logging techniques, such as Gamma Ray and Density measurements, prove particularly effective in identifying this distinct layer. The primary objective of this study was to conduct a comprehensive analysis of the lithostratigraphy and microstratigraphy within the Gadvan formation, with a specific emphasis on the Khalij limestone member. A regional stratigraphic assessment covered an extensive area of about 100,000 square kilometers in the Fars and Dezful regions within the Zagros region. To achieve this, data from 38 exploration and development wells were utilized, and approximately 1,400 microscopic thin sections from the Gadvan formation were meticulously examined. The paramount contribution of this research lies in the establishment of a representative type section for the Khalij limestone member, characterized by a thickness of 13 meters. Detailed microscopic analysis has revealed that this member predominantly comprises wackestone carbonate, featuring microfossils, particularly foraminifera from the orbitolindae family. Based on the observed species index, it has been determined to be of Barremian age and linked to a lagoon-like depositional environment.

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Relative depth reconstruction method using marine ostracods: A case-study from the upper Barremian–Aptian of the Crimean Mountains

Karpuk

2021

Cretaceous Research

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Planktonic foraminiferal biostratigraphy of the Upper Barremian and Aptian of Crimea

Cited by 12 publications

References 15 publications

Age of the earliest transgressive event in the Krishna-Godavari Basin, India: evidence from dinoflagellate cysts and planktonic foraminifera biostratigraphy

Age of the earliest transgressive event in the Krishna-Godavari Basin, India: evidence from dinoflagellate cysts and planktonic foraminifera biostratigraphy

Introduction to the Khalij Limestone Member Type Section in the Gadvan Formation of Iran: A Comprehensive Analysis Utilizing 38 Exploration and Development Wells and 1 Surface Section of Gadvan

Relative depth reconstruction method using marine ostracods: A case-study from the upper Barremian–Aptian of the Crimean Mountains

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