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Volume 11
Issue 6
10.3390/min11060611
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Article

Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain)

by
Celia Marcos
1,*,
María de Uribe-Zorita
1,
Pedro Álvarez-Lloret
1,
Alaa Adawy
2,
Patricia Fernández
3 and
Pablo Arias
3
1
Departamento Geología, University of Oviedo, Jesús Arias de Velasco s/n, 33005 Oviedo, Spain
2
Laboratory of High-Resolution Transmission Electron Microscopy, Edificio Severo Ochoa s/n, Campus de El Cristo, Institute for Scientific and Technological Resources, University of Oviedo, 33006 Oviedo, Spain
3
Instituto Internacional de Investigaciones Prehistóricas de Cantabria, Edificio Interfacultativo, University of Cantabria, Av. de los Castros, 52, 39005 Santander, Spain
*
Author to whom correspondence should be addressed.
Minerals 2021, 11(6), 611; https://doi.org/10.3390/min11060611
Submission received: 7 March 2021 / Revised: 3 June 2021 / Accepted: 4 June 2021 / Published: 7 June 2021
(This article belongs to the Section Crystallography and Physical Chemistry of Minerals & Nanominerals)
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Abstract

Chert samples from different coastal and inland outcrops in the Eastern Asturias (Spain) were mineralogically investigated for the first time for archaeological purposes. X-ray diffraction, X-ray fluorescence, transmission electron microscopy, infrared and Raman spectroscopy and total organic carbon techniques were used. The low content of moganite, since its detection by X-ray diffraction is practically imperceptible, and the crystallite size (over 1000 Å) of the quartz in these cherts would be indicative of its maturity and could potentially be used for dating chert-tools recovered from archaeological sites. Also, this information can constitute essential data to differentiate the cherts and compare them with those used in archaeological tools. However, neither composition nor crystallite size would allow distinguishing between coastal and inland chert outcrops belonging to the same geological formations.
Keywords: chert; crystallite size; moganite; Carboniferous chert; crystallite size; moganite; Carboniferous

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MDPI and ACS Style

Marcos, C.; de Uribe-Zorita, M.; Álvarez-Lloret, P.; Adawy, A.; Fernández, P.; Arias, P. Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain). Minerals 2021, 11, 611. https://doi.org/10.3390/min11060611

AMA Style

Marcos C, de Uribe-Zorita M, Álvarez-Lloret P, Adawy A, Fernández P, Arias P. Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain). Minerals. 2021; 11(6):611. https://doi.org/10.3390/min11060611

Chicago/Turabian Style

Marcos, Celia, María de Uribe-Zorita, Pedro Álvarez-Lloret, Alaa Adawy, Patricia Fernández, and Pablo Arias. 2021. "Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain)" Minerals 11, no. 6: 611. https://doi.org/10.3390/min11060611

APA Style

Marcos, C., de Uribe-Zorita, M., Álvarez-Lloret, P., Adawy, A., Fernández, P., & Arias, P. (2021). Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain). Minerals, 11(6), 611. https://doi.org/10.3390/min11060611

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