Mineralogy, geochemistry, and genesis of bentonites in Upper Cretaceous pyroclastics of the Bereketli member of the Reşadiye Formation, Reşadiye (Tokat), Turkey

Kadır, Selahattın; Külah, Tacit; Erkoyun, Hülya; Uyanık, Nergis Önalgil; Eren, Muhsın; Elliott, W. Crawford

doi:10.1016/j.clay.2021.106024

Cited by 11 publications

(10 citation statements)

References 55 publications

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“…Similar bentonite resources can be found in the Carpathian area such as those from the Hliník nad Hronom deposit in Slovakia [7], but also in the world in Spain and in Turkey [8,14].…”

Section: Introductionsupporting

confidence: 60%

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Mineralogical and Physico-Chemical Characterization of the Oraşu-Nou (Romania) Bentonite Resources

Damian

Szakács

et al. 2021

Minerals

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The objective of this study is to describe the mineralogical composition and chemical properties of the Oraşu Nou bentonite, from northwestern Romania. For mineralogical determinations, the following were used: X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FR-IR), thermogravimetric analysis, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX). The chemical compositions and physical properties of the bentonites and bentonitized rocks were also determined. Calcium type montmorillonite is the predominant mineral in this deposit. Its average mass fraction is between 35% and 75%, reaching up to 95%. A small amount of halloysite and very fine cristobalite were also identified in the fine fraction. Quartz, feldspar, and kaolinite were identified as impurities. The average pH of natural bentonite is 6.2. Its cation exchange capacity (CEC) is in the lower-middle range for smectites at 45.89 cmol/kg, absorption capacity 43.58 mL/g, swelling degree 9.41%. Because of the high amounts and purity of montmorillonite, the valuable component mineral, the way is open to an easy refinement of this important resource. This way very high-quality colloidal suspensions can be obtained which can be used in the most modern applications of micro- and nanostructured materials.

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“…Similar bentonite resources can be found in the Carpathian area such as those from the Hliník nad Hronom deposit in Slovakia [7], but also in the world in Spain and in Turkey [8,14].…”

Section: Introductionsupporting

confidence: 60%

“…Scanning electron microscope images also showed that montmorillonite is abundant in the Oraşu Nou bentonite samples. Montmorillonite flakes (up 7 µm in diameter) occurred as massive flakes [14].…”

Section: X-ray Diffraction Studiesmentioning

confidence: 99%

Mineralogical and Physico-Chemical Characterization of the Oraşu-Nou (Romania) Bentonite Resources

Damian

Szakács

et al. 2021

Minerals

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“…Novel studies on the assessment of industrial clays give improved testing procedures and analytical techniques [21] as well as new perspectives of exploration and utilisation [16][17][18]22,72]. Geology, mineralogy, and origin of industrial clays present data on recently explored mineral deposits [73,74]. Current fundamental and applied investigation of clay minerals in China was summarized by [23] and for Central Europe by [24].…”

Section: Mineralmentioning

confidence: 99%

Towards Better Valorisation of Industrial Minerals and Rocks in Serbia—Case Study of Industrial Clays

2021

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The improvement in valorisation of industrial minerals and rocks in Serbia is related to improvement of legislation, and to adoption of best possible techniques for geological exploration and estimation of resources/reserves. Therefore, we analyzed the actual practice in the field of geological exploration which has not changed significantly in the last 30 years, as well as legislation related to the mining industry and access to land. The improvement of legislation mostly depends on the state authorities. Contrary to that, the enhancement of geological exploration methodology should be the issue of experts working in that area of the mining industry but is also very much related to the existing legislation. Serbia still has very strictly prescribed procedures, which are generally good; however, it is an overly complicated and restrictive system for performing geological exploration and evaluation of mineral deposits. The most important improvements in legislation in the last twenty years are presented and discussed, as well as problems that still need to be solved and solutions found to fully understand the potential of industrial minerals and rocks in Serbia.

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“…It has strong colloidal properties, and its volume increases several times when encountering water, creating a gelatinous and viscous substance. Bentonite deposits worldwide mostly originate from the hydrothermal or diagenetic alteration of pyroclastic rocks of intermediate to acidic compositions (e.g., Yalçin and Gümüşer, 2000;Abdioğlu and Arslan, 2005;Christidis and Huff, 2009;Arslan et al, 2010;Çiflikli et al, 2013;Modabberi et al, 2019;Kadir et al, 2021). Bentonite deposits occur in many countries including USA, Germany, Greece, Spain, Italy, Algeria, Argentina, Australia, Italy, Japan, Hungary, Turkey, and Iran (Modabberi et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Bentonite deposits occur in many countries including USA, Germany, Greece, Spain, Italy, Algeria, Argentina, Australia, Italy, Japan, Hungary, Turkey, and Iran (Modabberi et al, 2019). Bentonite deposits are common in many parts of the neighboring Turkey (e.g., Çoban and Ece, 1999;Karakaş and Kadir, 2000;Yıldız and Kuşcu, 2004;Abdioğlu et al, 2004;Abdı̇oğlu and Arslan, 2005;Yıldız and Kuşcu, 2007;Yıldız and Dumlupunar, 2009;Arslan et al, 2010;Karakaya et al, 2011;Kadir et al, 2011Kadir et al, , 2021Külah et al, 2017;Elliott et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Geology, mineralogy, and geochemistry of the Zarloukh Bentonite −Tuff deposit, Hemrin South Mountain, northern Iraq: implications for genesis and geotectonics

Kettanah¹

2021

Turkish J Earth Sci

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Mineralogy, geochemistry, and genesis of bentonites in Upper Cretaceous pyroclastics of the Bereketli member of the Reşadiye Formation, Reşadiye (Tokat), Turkey

Cited by 11 publications

References 55 publications

Mineralogical and Physico-Chemical Characterization of the Oraşu-Nou (Romania) Bentonite Resources

Mineralogical and Physico-Chemical Characterization of the Oraşu-Nou (Romania) Bentonite Resources

Towards Better Valorisation of Industrial Minerals and Rocks in Serbia—Case Study of Industrial Clays

Geology, mineralogy, and geochemistry of the Zarloukh Bentonite −Tuff deposit, Hemrin South Mountain, northern Iraq: implications for genesis and geotectonics

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