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Provenance of Quaternary sands in the Algarve (Portugal) revealed by U-Pb ages ...
Veiga-Pires, C.; Moura, Delminda; Rodrigues, Bruno; Machado, Nuno; Campo, Leif; Simonetti, AntonyThe application of U–Pb dating by laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS) to determine the sources of detrital zircon in Neogene and Quaternary sands of the Algarve (southern Portugal) revealed the presence of three age groups: Palaeozoic to Neoproterozoic (200–800 Ma), Palaeoproterozoic (ca. 1700–2100 Ma) and Neo- to Meso-Archaean (2600–3200 Ma). The results suggest that at leas...
U-Pb zircon ages and provenance of Quaternary sands: first results for Algarve ...
Veiga-Pires, C.; Moura, Delminda; Campo, Leif; Simonetti, Antony; Machado, NunoThe mineralogical composition of beach sands results from several factors the most important of which are the composition of the source rocks and mixing by coastal processes. Since the pioneering work of Trask (1952) who used augite as a mineral tracer, the study of the heavy mineral assemblage of beach sands have been used to determine sediment sources and to characterize sediment transport and mixing. This is...
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