Sequence stratigraphic analysis of the Lower Jurassic succession, Western Iraq

Gayara, Ali D.; Al-Gibouri, Amer S.

doi:10.1007/s12517-014-1627-0

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Eustacy has been one of the main parameters which also affect sequence creation. Thus, the relative sea level is a result of total subsidence and eustacy; these two factors provide the necessary accommodation for accumulation of sediment [24].…”

Section: Discussionmentioning

confidence: 99%

Facies Analysis and Depositional Environments of the Ubaid Formation, Western Iraq

Al-Taee

Malak

2021

eijs

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The Early Jurassic (Liassic) sequence crops out in numerous anticlines of the high folded zone of north and north-east Iraq and in the Rutba subzone (including Ubaid Formation) in west Iraq. The present study deals with siliciclastic / carbonate rocks of the 58 m-thick Ubaid Formation at Zor Hauran valley in south western Iraq. The formation consists of two parts; the lower part is composed of pebbly coarse sandstone and greenish to yellowish soft marl alternated with marly dolostone, while the upper part is characterized by light brown, well bedded dolostone, with stromatolite structure in some locations. Oval, light to dark brown nodules of chert are also present. A detailed field lithological description and facies analysis of the Ubaid Formation were performed for thin sections. It is composed of five main microfacies; dolomitized mudstone, dolomitized bioclastic wackstone, dolomitized pelloidal packstone, dolomitized oolitic grainstone, and bindstone, in addition to two lithofacies: marl and pebbly sandstone. These facies reflect the deposition from the environment of the lower supratidal to intertidal zone and the encompassing shallow scaffold secured shoal - marine environment with cautious water circulation.

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Section: Discussionmentioning

confidence: 99%

Facies Analysis and Depositional Environments of the Ubaid Formation, Western Iraq

Al-Taee

Malak

2021

eijs

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“…Such as Kirkuk and Tawki oilfields [12]. [13] studied Miocene succession of western and southern Iraq is represented by the Jeribe Formation. It is focused on depositional environment interpretation based on a detailed petrographic study and microfacies analysis and concluded that three subenvironments were recognized within the Jeribe Formation are (restricted marine environment, Shoal environment and shallow open marine environment).…”

Section: Introductionmentioning

confidence: 99%

Depositional Setting of the Jeribe Formation in Selected Subsurface Sections, Northern Iraq

Ibraheem,

Kareem,

Salih

2023

Iraqi Journal of Science

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The current research studies the depositional setting of the Jeribe Formation in the south Mosul area of northern Iraq, which is tectonically located in the Low Folded Zone characterized by the deposition of limestone and marly limestone of the Jeribe Formation during the Middle Miocene. Petrography has provided a diversity of fauna such as benthonic foraminifera (Miliolid, Peneroplis sp., Dendritina sp. and Borelis melo curdica) in addition to Red Algae and Mollusca. The Jeribe carbonates were affected by various diagenetic processes such as dolomitization, neomorphism, cementation, anhydritization, compaction and dissolution. Many microfacies have been identified, including lime mudestone, wackestone, packstone and Milioldal grainstone, with eight submicrofacies (Non-Fossiliferous lime mudstone, Benthonic lime mudstone, Fossiliferous wackestone, Red Algal wackestone, Milioldal packstone, Fossiliferous packstone, Green Algal packstone and Red Algal packstone). Depending on microfacies analysis, the Jeribe Formation was deposited in restricted and open marine environments within an interior platform setting.

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Facies Associations and Sequence Stratigraphy of the Toarcian Marrat Formation (Saudi Arabia) and Their Equivalents in Some Gondwanaland Regions

2023

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Sequence stratigraphic analysis of the Lower Jurassic succession, Western Iraq

Cited by 3 publications

References 5 publications

Facies Analysis and Depositional Environments of the Ubaid Formation, Western Iraq

Facies Analysis and Depositional Environments of the Ubaid Formation, Western Iraq

Depositional Setting of the Jeribe Formation in Selected Subsurface Sections, Northern Iraq

Facies Associations and Sequence Stratigraphy of the Toarcian Marrat Formation (Saudi Arabia) and Their Equivalents in Some Gondwanaland Regions

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