ORIGINAL PAPER A complex magmatic system beneath the Devès volcanic field, Massif Central, France: evidence from clinopyroxene megacrysts

aggregates with clinopyroxene occur in the volcanic deposits at Mont Briançon and Marais de Limagne, which are located in the northern part of the Devès volcanic field (Massif Central, France). The clinopy-roxenes can be subdivided into five groups based upon their major and trace element chemistry. Types 1a, 1b and 1c have mg # ~0.80 and are relatively Al-rich and low in Na and Fe3+. Subdivision into three groups is based on differing trace element signatures. Type 2 clinopyroxenes have mg # = 0.63–0.65 and higher Na and Fe3+ (Fe3+/SFe> 0.4) contents and may contain apatite inclusions. A type 3 megacryst is Fe-rich (mg # = ~0.52) and has the highest Na and Fe3+ con-tents, as well as containing titanite and apatite inclu-sions. High Fe3+ contents in all clinopyroxene