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Exotic pollen grains of the Betulaceae family, of Andean origin, also occurred in the pollen rain, resulting from dispersion by atmospheric currents of long distances.The Paraná emerald deposit is one of the few occurrences of emerald, a rare beryl variety, in Borborema Province, northeastern Brazil. We characterized the Paraná deposit by combining field geology, petrography, whole-rock geochemistry, mineral chemistry, and reflectance spectroscopy. The mineralization is associated with phlogopite-, actinolite-phlogopite-, and phlogopit
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