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

Autor: Celia Marcos, María de Uribe-Zorita, Pedro Álvarez-Lloret, Alaa Adawy, Patricia Fernández, Pablo Arias
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Minerals, Vol 11, Iss 6, p 611 (2021)
Druh dokumentu: article
ISSN: 11060611
2075-163X
DOI: 10.3390/min11060611
Popis: 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.
Databáze: Directory of Open Access Journals
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