Cyclostratigraphy and sequence boundaries of inner platform mixed carbonate–siliciclastic successions (Barremian–Aptian) (Zonguldak, NW Turkey)

Yılmaz, İsmail Ömer; Altıner, Demir

doi:10.1016/j.jseaes.2006.08.008

Cited by 13 publications

(4 citation statements)

References 25 publications

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“…[10] Outcrops of Barremian to Albian shallow marine carbonate, shale, and sandstone along the Black Sea coast between Zonguldak and Amasra delimit the northwestern margin of the Çağlayan basin [Figure 2;Tüysüz, 1999;Yılmaz and Altıner, 2007;Masse et al, 2009;Hippolyte et al, 2010]. Lower Cretaceous rocks are absent further west along the Black Sea margin.…”

Section: Lower Cretaceous Turbidites: the çAğlayan Formationmentioning

confidence: 99%

Early Cretaceous sedimentation and orogeny on the active margin of Eurasia: Southern Central Pontides, Turkey

et al. 2013

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The Pontides in northern Turkey constituted part of the southern active margin of Eurasia during the Mesozoic. In the Early Cretaceous, a large submarine turbidite fan covered most of the Central Pontides. New U‐Pb detrital zircon data imply that the major source of the turbidites was the East European Craton‐Scythian Platform in the north. This implies that there was no thoroughgoing Black Sea basin between the Pontides and the East European Craton during the Early Cretaceous. The Lower Cretaceous turbidites are bounded in the south by a large metamorphic area, the Central Pontide Supercomplex (CPS). New geological mapping, petrology, and U‐Pb zircon and Ar‐Ar muscovite ages indicate that the northern part of the CPS consists of Lower Cretaceous distal turbidites deformed and metamorphosed in a subduction zone in the Albian. The rest of the CPS is made of Middle Jurassic, Lower Cretaceous, and middle Cretaceous (Albian) metamorphic belts, each constituting distinct subduction‐accretion units. They represent episodes of collision of oceanic volcanic arcs and oceanic plateaus with the Eurasian margin and are marked in the stratigraphy of the hinterland by periods of uplift and erosion. The accretionary complexes are overlain by Upper Cretaceous (Turonian‐Santonian) volcano‐sedimentary sequences deposited in a fore‐arc setting. The detrital zircon data, middle Cretaceous (Albian) metamorphism, and widespread Albian uplift of the Black Sea region suggest that Early Cretaceous (Barremian‐Aptian) nonvolcanic rifting and Late Cretaceous (Turonian‐Santonian) opening of the Black Sea by the splitting of the arc are unrelated events.

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Section: Lower Cretaceous Turbidites: the çAğlayan Formationmentioning

confidence: 99%

Early Cretaceous sedimentation and orogeny on the active margin of Eurasia: Southern Central Pontides, Turkey

et al. 2013

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“…In the Istanbul Zone, sedimentation in the Zonguldak and Ulus basins began during the Late Barremian (Tüysüz, 1999;Masse et al, 2009), with normal fault-controlled continental to shallow marine deposition, and initiated the development of a short-lived Urgonian-type carbonate platform along the northern parts of the Istanbul Zone during Late Barremian to Early Aptian times (Yılmaz and Altıner, 2007). Fast deepening of the region as a result of the opening of the Zonguldak Basin caused the demise of this platform (Masse et al, 2009) and the filling of the basin with deepening upward siliciclastic sediments (Görür, 1997;Tüysüz, 1999;Hippolyte et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

The Kapanboğazı formation: A key unit for understanding Late Cretaceous evolution of the Pontides, N Turkey

Tüysüz

Yılmaz

Kirici³

et al. 2016

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Pore structure plays an essential role in the fluid occurrence and flow properties and is one of the main features for evaluating of shale reservoirs [5][6][7][8][9]. Compared with other oil reservoirs such as sandstone and carbonate reservoirs, the pore structure of shale reservoirs is more challenging to evaluate [6][7][8][9][10][11]. This is because the shale reservoirs are always characterized by various mineral compositions, resulting in complex pore throat connectivity and extreme heterogeneity of pore size distributions [8,[10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Compared with other oil reservoirs such as sandstone and carbonate reservoirs, the pore structure of shale reservoirs is more challenging to evaluate [6][7][8][9][10][11]. This is because the shale reservoirs are always characterized by various mineral compositions, resulting in complex pore throat connectivity and extreme heterogeneity of pore size distributions [8,[10][11][12][13]. Thus, effectively evaluating the pore structure of shale reservoirs is necessary and meaningful.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Pore Structure of Shale Reservoirs through Pore Space Multifractal Characterization

Dai

Dong

et al. 2023

Geofluids

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Characteristics of pore structure are crucial to oil exploration and development in shale reservoirs, but practical evaluation of shale pore structure remains a longstanding challenge. In this study, based on nuclear magnetic resonance transverse relaxation time (T2) spectra under water-saturated and irreducible conditions, total pore space and moveable fluid space were skillfully determined. Meanwhile, multifractal spectra were used to characterize T2 distributions of total pore space and movable fluid space. The results show characteristic parameters of high probability measure areas of multifractal spectra (multifractal parameters) have strong negative correlations with T2 geometric mean value, and average radii of pore and throat increase with a decrease in the multifractal parameters, indicating the shale reservoirs with low values of the multifractal parameters may have good pore structure. Moreover, clay mineral content has strong positive effects on the multifractal parameters. In contrast, (quartz+feldspar) mineral content negatively influences on the multifractal parameters. Finally, new accurate models for permeability estimation in core scale and well-logging scale of shales are both proposed based on the multifractal parameters, which are also applicable for the other reservoirs. Overall, this study is important and timely for evaluating pore structure and predicting permeability in shale reservoirs.

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Cyclostratigraphy and sequence boundaries of inner platform mixed carbonate–siliciclastic successions (Barremian–Aptian) (Zonguldak, NW Turkey)

Cited by 13 publications

References 25 publications

Early Cretaceous sedimentation and orogeny on the active margin of Eurasia: Southern Central Pontides, Turkey

Early Cretaceous sedimentation and orogeny on the active margin of Eurasia: Southern Central Pontides, Turkey

The Kapanboğazı formation: A key unit for understanding Late Cretaceous evolution of the Pontides, N Turkey

Evaluating Pore Structure of Shale Reservoirs through Pore Space Multifractal Characterization

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