Early Eocene orthophragminids and alveolinids from the Jafnayn Formation, N Oman: significance of<i>Nemkovella stockari</i>Less &amp; Özcan, 2007 in Tethys

Özcan, Ercan; Abbasi, İftikhar Ahmed; Drobne, Katica; Govindan, A.; Jovane, Luigi; Boukhalfa, Kamel

doi:10.1080/09853111.2015.1107437

Cited by 26 publications

(14 citation statements)

References 33 publications

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“…The Paleocene to Eocene Jafnayn and Rusayl formations were deposited around the Saih Hatat window, onto which the formations thin and onlap, thus emphasizing the topographic prominence of Saih Hatat at this time (Searle, 2007). The Jafnayn Formation unconformably overlie Upper Cretaceous strata or, in the case of the Bandar Jissah Basin, the Semail Ophiolite and consists of varied deposits from continental conglomerates to open-shelf carbonates (Nolan et al, 1990;Racey, 1995;Fournier et al, 2006;Özcan et al, 2015;Haynes, Racey and Whittaker, 2018). The Rusayl Formation consists of lagoonal to offshore transition limestones (Nolan et al, 1990;Racey, 1995; Beavington-Penney, Wright and Racey, 2006;Dill et al, 2007;Özcan et al, 2015).…”

Section: Bandar Jissah Basin Northeastern Omanmentioning

confidence: 99%

“…The Jafnayn Formation unconformably overlie Upper Cretaceous strata or, in the case of the Bandar Jissah Basin, the Semail Ophiolite and consists of varied deposits from continental conglomerates to open-shelf carbonates (Nolan et al, 1990;Racey, 1995;Fournier et al, 2006;Özcan et al, 2015;Haynes, Racey and Whittaker, 2018). The Rusayl Formation consists of lagoonal to offshore transition limestones (Nolan et al, 1990;Racey, 1995; Beavington-Penney, Wright and Racey, 2006;Dill et al, 2007;Özcan et al, 2015). The Lutetian-Barthonian Seeb Formation has been interpreted as an open-shelf carbonate with little terrigenous input and few evidences for subaerial exposure; it has thus been suggested that the Saih Hatat window was submerged by mid-Eocene (Skelton, Nolan and Scott, 1990;Hansman et al, 2017).…”

Section: Bandar Jissah Basin Northeastern Omanmentioning

confidence: 99%

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Jurassic to Early Cretaceous basin configuration(s) in the Fingerdjupet Subbasin, SW Barents Sea

Serck

Faleide

Braathen

et al. 2017

Marine and Petroleum Geology

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This PhD thesis addresses how fault and fold growth affect accommodation development and sediment routing and fill in extensional basins. Extensional basins are key constituents of passive continental passive and intra-continental rift systems and hold great potential accumulation of reservoir-grade successions of sediments. These types of basins differ widely in terms of e.g. fault and fold properties, duration of faulting, accommodation development, tectono-climatic setting and lithology of basin substrate and fill. Accordingly, constructing general models for extensional basin evolution is challenging. Combining different types of datasets that offer different observation scale and resolution can mitigate this. This thesis presents seismic case studies from the Fingerdjupet Subbasin, southwestern Barents Sea and outcrop studies from the Bandar Jissah Basin, northeastern Oman. Seismic analyses include interpretations of faults and horizons bounding seismic reflector packages; age control was achieved

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Section: Bandar Jissah Basin Northeastern Omanmentioning

confidence: 99%

Section: Bandar Jissah Basin Northeastern Omanmentioning

confidence: 99%

Jurassic to Early Cretaceous basin configuration(s) in the Fingerdjupet Subbasin, SW Barents Sea

Serck

Faleide

Braathen

et al. 2017

Marine and Petroleum Geology

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“…The nummulitic limestones of the Eocene Ziarat Formation are deposited Stöcklin, 1968;Aghanabati, 2004). (B) Tethyan mountain ranges (simplified from Okay, 1989;Özcan et al, 2016) and location of studied region in the Alborz zone from Iran. (C) Simplified geological map from eastern Alborz region (after General geological map of Iran, 1:250000 from Sharabi, 1990).…”

Section: Geological Setting and Stratigraphymentioning

confidence: 99%

Microfacies analysis of Eocene Ziarat Formation (eastern Alborz zone, NE Iran) and paleoenvironmental implications

et al. 2021

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Despite belonging to an important time slice in the geological history, the Eocene shallowmarine beds of the Alborz region in Iran have received little attention from researchers. We selected two stratigraphic sections (Mojen and Kalateh) ascribed to the Ziarat Formation as suitable representatives for the current analysis, emphasising on their constituent microfacies and paleoenvironmental implications. The biotic communities are characterised by larger benthic foraminifera (LBF), coralline algae, corals, and bivalves as the major carbonate facies components. The microfacies gradients and paleoenvironmental analysis suggest deposition in a shallow-marine oligotrophic ramp environment within two platform stages. Both these stages indicate an increase in water depth from the inner to the middle ramp settings with spatial distribution of the LBF and other benthic components. Our data support the previous view that the early Eocene witnessed an increase in LBF taxa with near obliteration of the coral reefs in the sedimentary platforms across the Tethys. The corals reinitiated building reefal structures in the Middle Eocene, marking an important phase in the Tethyan paleoenvironmental evolution.

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“…The boundary to the overlying Simsima (shallow shelf carbonate) Formation is described for the area as conformable and elsewhere a non-sequence is present ). The late Palaeocene to early-Eocene shallow-marine carbonates of the Jafnayn Formation were deposited on top of a major regional unconformity, separating Paleogene and Cretaceous strata in the central Oman Mountains (Özcan et al 2015;Tomás et al 2016). Subsequently, the shale and fine-grained limestones of the Rusayl Formation (early-Eocene age) were deposited in a fluvial and lagoonal environment (Dill et al 2007).…”

Section: Post-obduction Sequencesmentioning

confidence: 99%

Geothermal exploration in a sedimentary basin: new continuous temperature data and physical rock properties from northern Oman

2018

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IntroductionBackground Geothermal systems currently under exploitation are found in a number of geological environments, where temperatures and depths of the reservoirs vary accordingly. Many high-temperature (> 180 °C) hydrothermal systems are associated with recent volcanic activity and are found near plate tectonic boundaries (e.g., subduction zones, rift systems, oceanic spreading centers or transform margins), or at crustal and mantle hot spot AbstractThe lateral and vertical temperature distribution in Oman is so far only poorly understood, particularly in the area between Muscat and the Batinah coast, which is the area of this study and which is composed of Cenozoic sediments developed as part of a foreland basin of the Makran Thrust Zone. Temperature logs (T-logs) were run and physical rock properties of the sediments were analyzed to understand the temperature distribution, thermal and hydraulic properties, and heat-transport processes within the sedimentary cover of northern Oman. An advective component is evident in the otherwise conduction-dominated geothermal play system, and is caused by both topography and density driven flow. Calculated temperature gradients (T-gradients) in two wells that represent conductive conditions are 18.7 and 19.5 °C km −1 , corresponding to about 70-90 °C at 2000-3000 m depth. This indicates a geothermal potential that can be used for energy intensive applications like cooling or water desalinization. Sedimentation in the foreland basin was initiated after the obduction of the Semail Ophiolite in the late Campanian, and reflects the complex history of alternating periods of transgressive and regressive sequences with erosion of the Oman Mountains. Thermal and hydraulic parameters were analyzed of the basin's heterogeneous clastic and carbonate sedimentary sequence. Surface heat-flow values of 46.4 and 47.9 mW m −2 were calculated from the T-logs and calculated thermal conductivity values in two wells. The results of this study serve as a starting point for assessing different geothermal applications that may be suitable for northern Oman. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Early Eocene orthophragminids and alveolinids from the Jafnayn Formation, N Oman: significance ofNemkovella stockariLess & Özcan, 2007 in Tethys

Cited by 26 publications

References 33 publications

Jurassic to Early Cretaceous basin configuration(s) in the Fingerdjupet Subbasin, SW Barents Sea

Jurassic to Early Cretaceous basin configuration(s) in the Fingerdjupet Subbasin, SW Barents Sea

Microfacies analysis of Eocene Ziarat Formation (eastern Alborz zone, NE Iran) and paleoenvironmental implications

Geothermal exploration in a sedimentary basin: new continuous temperature data and physical rock properties from northern Oman

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