Provenance and tectonic setting of Late Carboniferous clastic rocks in West Junggar, Xinjiang, China: A case from the Hala-alat Mountains

Petrography and geochemistry of Pharaonic sandstone monuments in Tall San Al Hagr, Al Sharqiya Governorate, Egypt: implications for provenance and tectonic setting

“…The K 2 O and Rb contents in terrigenous sediments are sensitive to sedimentary recycling processes and have been widely used as indicators for source composition (Armstrong-Altrin et al, 2012Tao et al, 2013 (Figure 13b), which varies from intermediate to felsic. Higher values of Cr (>150 ppm) and Ni (>100 ppm) are diagnostic of ultramafic sources (Garver et al, 1996).…”

Provenance and depositional history of continental slope sediments in the Southwestern Gulf of Mexico unraveled by geochemical analysis

“…On the other hand, the K 2 O/Al 2 O 3 and Rb/Al 2 O 3 ratios have been widely used as indicators for source composition (e.g. Armstrong-Altrin et al, 2012;Tao et al, 2013), since the K 2 O and Rb contents in sediments are sensitive during recycling processes (Floyd and Leveridge, 1987). The K 2 O/Al 2 O 3 versus Rb/Al 2 O 3 bivariate plot (Fig.…”

Geochemistry of sands along the San Nicolás and San Carlos beaches, Gulf of California, Mexico: implications for provenance and tectonic setting

“…the recommendations of Aitchison (1986) as done by Verma et al (2006) for the first time for such applications in geosciences (see also Agrawal and Verma, 2007;Verma et al, 2013b;Verma and Armstrong-Altrin, 2013). The K 2 O and Rb contents in terrigenous sediments are sensitive to sedimentary recycling processes and have been widely used as indicators for source composition (Armstrong-Altrin et al, 2012;Tao et al, 2013 (Figure 9) reveals a compositional difference between the SN and SC sands and these ratios are higher in the SN sands (Table 1). This variation may reflect changing average source rock compositions from felsic to intermediate, respectively.…”