Provenance of beach gray sands from western México

Mechanisms of enrichment of natural radioactivity along the beaches of the Camargue, France

“…Sorting of grains according to these parameters varied not only by the distance from the shoreline, but also by the depth. Indeed, grain sorting is a function of the deposition process that involves the energy of waves (Carranza-Edwards et al, 2001). According to Kunzendorf (1986), high-energy waves lead to the deposition of high-density minerals that cannot easily be removed back to the sea by the low-energy backwash flow.…”

Provenance and Geochemical Characteristics of the Silt and Clay Fraction in the Taklamakan Desert, Northwestern China

“…The application of such methods in sedimentary geochemistry is increasing (e.g., Basu & Molinaroli, 1989;Carranza-Edwards et al, 2001;Muhs & Holliday, 2001;García et al, 2004;Kasper-Zubillaga et al, 2006). These previous studies suggested that TiO 2 is a good reference oxide, because of its very slow dissolution rate and its resistance to chemical weathering in acidic solutions.…”

“…Petrologic and geochemical investigations of Aeolian sediments have conventionally been used to examine their provenance and transport pathways in desert areas (Zhu et al, 1981;Basu & Molinaroli, 1989;Carranza-Edwards et al, 2001;Yang et al, 2002;Yang et al, 2007;Muhs et al, 2003;Muhs, 2004;Kasper-Zubillaga et al, 2006). Such studies have revealed that desert Aeolian sediments are subjected to diverse forms of hydraulic sorting processes, individually or mixed (e.g., glacial, Aeolian, abrasional, fluvial, and flood processes).…”

Mineral composition and environmental geochemistry of the beach sediments along the eastern side of the Gulf of Suez, Egypt

“…These authors added that heavy mineral concentrations on a beach can often be recognised from their dark colours, red, purple or even black. According to Carranza-Edwards et al (2001), the heavy minerals' content is not related to grain size, sorting, or sand provenance. In agreement with Carranza-Edwards et al (2001), the present study shows that the index figure of total heavy minerals (heavy minerals %) seems not to be controlled by grain size (Fig.…”