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This study reports the impact of weathering on behavior of rare earth elements (REE) in a coastal lateritic profile developed on Pliocene sediments at mid-latitude location (~37° N), in the Guadalquivir Basin (Spain). It also explores the stable isotope signature of kaolinite providing constraints on paleotemperature and isotopic composition of the ancient meteoric water. The paleoweathering profile...
The Burela deposit is the largest kaolin deposit in Spain, mined for more than 50years, the product being mainly used for porcelain. Kaolin is dominantly associated with Lower Cambrian felsites, interbedded with quartzites, micaschists and metapelites (Cándana Series), and was strongly folded during the Variscan orogeny. Kaolin layers were ductile and incompetent materials among more competent ones,...
Kaolinite-rich fractions of <45, <2 and <1μm size from deposits of Galicia (NW Spain) at Ramón-Fazouro and Nuevo Montecastelo to the north, Vimianzo, Barilongo and Lendo in the center, and Santa Tecla to the south show significant ranges in δ18O from 16.5 to 22.4‰ and in δD from −99 to −40‰. These widely spread values question a single crystallization process as no statistically significant...
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