Chemostratigraphy, tectonic setting and provenance of the Cambro-Ordovician clastic deposits of the subsurface Algerian Sahara

X-ray fluorescence (XRF) in the investigation of the composition of earth materials: a review and an overview

“…The major elemental composition of Earth material samples can be analysed by various instruments (Baedecker, 1987;Sabaou, Ait-Salem, & Zazoun, 2009). However, XRF spectrometry is particularly valuable because of its ability to rapidly provide a high-resolution assessment of relative variations of most Earth elemental compositions (Löwemark et al, 2011).…”

“…XRF spectrometry is based on the wavelength-dispersive principle, which states that individual atoms emit a relative abundance of X-ray photons of energy or wavelength feature that can be estimated (Weltje & Tjallingii, 2008). This technique has been applied in the examination of Earth materials from a range of settings and environments (e.g., Chalmers & Bustin, 2017;Löwemark, Jakobsson, Mörth, & Backman, 2008;Oyedotun, 2016;Özkul, Çiftçi, Tokel, & Savaş, 2017;Rivera, Giráldez, & Fernádez-Caliani, 2016;Sabaou et al, 2009). The wide range of XRF's uses is due to its capacity to provide probable higher precision and accuracy than alternative methods (Taggart, Lindsay, INWASCON …”

Strain analysis of Late Ordovician tectonic events in the In-Tahouite and Tamadjert Formations (Tassili-n-Ajjers area, Algeria)

“…The Tin Taradjelli sandstone has never been dated in the outcrops, and is tentatively attributed to the Cambrian or Early Ordovician. In the subsurface, this formation corresponds to reservoir Unit II, which represents the main reservoir unit of the giant Hassi-Messaoud oil field (Eschard et al, 2005;Sabaou et al, 2009). The first biostratigraphic evidence of Middle to Late Cambrian sedimentation in the Algerian subsurface resulted from the palynological analysis of preOrdovician clastic sequences penetrated by borehole AMG-1 in north-western Algeria is reported by Vecoli et al (2008).…”

Provenance and tectonic settings of sands from Puerto Peñasco, Desemboque and Bahia Kino beaches, Gulf of California, Sonora, México

“…The geochemistry of clastic sediments has been useful for inferring the composition of source area (Cullers, 2000(Cullers, , 2002Osae et al, 2006;Armstrong-Altrin, 2009;Saha et al, 2010;Raza et al, 2012;Zaid and Gahtani, 2015;, intensity of chemical weathering in the source region (Fedo et al, 1996;Nath et al, 2000;Selvaraj and Chen, 2006;Gallala et al, 2009) and reconstruction of the tectonic setting of the sedimentary basin (Sabaou et al, 2009). Geochemical studies on clastic rocks had long been used to unravel the provenance signatures (Madhavaraju and Ramasamy, 2002;Yan et al, 2002;Armstrong-Altrin et al, 2004;Nagarajan et al, 2007a,b;Paikaray et al, 2008;Moosavirad et al, 2012;Madhavaraju, 2015;Ramachandran et al, 2016).…”