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In the Mediterranean area, four major lamproitic provinces with uniform geological, geochemical, and petrographic characteristics are recognized: Spain, Italy, Balkans, and Turkey. Mediterranean lamproites are SiO2-rich lamproites, characterized low CaO, Al2O3, and Na2O, and high K2O/Al2O3 and Mg-number. They are enriched by in large ion lithophile elements relative to high field strength elements and in Pb, and show depletion in Ti, Nb, and Ta. The Mediterranean lamproites are characterized by a wide range of 87Sr/86 and 143Nd/144Sri Ndi. Both...

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