An integrated geophysical, hydrological, thermal approach to finite volume modelling of fault-controlled geothermal fluid circulation in Gediz Graben

Üner, Serkan; Doǧan, Doǧa Düșünür

doi:10.1016/j.geothermics.2020.102004

Cited by 8 publications

(4 citation statements)

References 32 publications

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“…Faults, in most cases, have higher permeability values than those of the surrounding geological units (Magri et al, 2012;Üner and Düşünür Doğan 2021).…”

Section: Numerical Modelmentioning

confidence: 95%

“…Therefore, high-permeability values are assigned to fault zones in our models. Heat and fluid flow properties which are presented in Table (1) and ( 2) are taken from these previous studies (McKenna and Blackwell 2004;Magri et al, 2010;Loreto et al, 2019;Üner and Düşünür Doğan 2021).…”

Section: Numerical Modelmentioning

confidence: 99%

“…Table of physical parameters for geological units taken from previous studies (McKenna and Blackwell 2004;Magri et al 2010;Loreto et al 2019;Üner and Düşünür Doğan 2021) …”

mentioning

confidence: 99%

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Finite volume modeling of bathymetry and fault-controlled fluid circulation in the Sea of Marmara

ŞEN,

DÜŞÜNÜR-DOĞAN

2021

Turkish J Earth Sci

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Fluid vents in the Sea of Marmara were discovered and investigated by several studies. In this paper, a numerical model is created for the first time in order to determine the possible transport mechanism behind those fluid emissions at the seafloor. The finite volume method is used for numerical simulations by implementing a commercial finite volume code, ANSYS-Fluent. The thermal and physical rock properties used in our models are taken from previous studies. Bathymetry, fault-controlled fluid flow velocities and temperature distribution patterns for the Central Basin and Western High in the Sea of Marmara are simulated and presented. Effects of faults, thickness of sediments, hydrostatic pressure due to the water column thickness on fluid flow are demonstrated. Driving mechanisms of the fluid flow are also discussed. It is found that both seafloor bathymetry and presence of faults can control the location and distribution of fluid emissions at the seafloor.

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“…Faults, in most cases, have higher permeability values than those of the surrounding geological units (Magri et al, 2012;Üner and Düşünür Doğan 2021).…”

Section: Numerical Modelmentioning

confidence: 95%

Section: Numerical Modelmentioning

confidence: 99%

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Finite volume modeling of bathymetry and fault-controlled fluid circulation in the Sea of Marmara

ŞEN,

DÜŞÜNÜR-DOĞAN

2021

Turkish J Earth Sci

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“…The first geothermal activities in Gediz Graben in Western Anatolia started in the 1960s due to high-temperature hot springs (Figure 1). In recent years, geothermal fluids have been produced up to 287 o C. Geothermal resources are used in regional and greenhouse heating, chemical production, tourism, health facilities, and mainly in electricity production [1][2][3][4][5][6][7][8]. The installed geothermal power capacity of Turkey reached 1668 MWe in 2020.…”

Section: Introductionmentioning

confidence: 99%

Structural Controls of High-Temperature and Deep Geothermal Systems Associated with Detachment Fault

Özdemir

Palabiyik

ARABACI

2022

EJT

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In this study, the structural controls of a high-temperature system (188 to 287 oC) associated with the detachment fault in Gediz Graben generating approximately half of this electricity generation in Turkey which is in the top five of the world in the generation of electricity from geothermal resources are examined. The high-temperature geothermal reservoirs associated with detachment fault in the study area have formed along the normal faults nearly in E-W orientation and in intensely fractured rocks in a structurally complex manner associated with transfer faults approximately in N-S orientation. Generally, it has been determined that the reservoirs are closely located to strike-slip faults intersecting, overlapping, and/or terminated with Quaternary transfer faults.

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Fault-controlled springs: A review

Keegan-Treloar

Irvine

Solórzano-Rivas

et al. 2022

Earth-Science Reviews

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An integrated geophysical, hydrological, thermal approach to finite volume modelling of fault-controlled geothermal fluid circulation in Gediz Graben

Cited by 8 publications

References 32 publications

Finite volume modeling of bathymetry and fault-controlled fluid circulation in the Sea of Marmara

Finite volume modeling of bathymetry and fault-controlled fluid circulation in the Sea of Marmara

Structural Controls of High-Temperature and Deep Geothermal Systems Associated with Detachment Fault

Fault-controlled springs: A review

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