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The Neoproterozoic shoshonitic and mildly alkaline bimodal volcanism of Southernmost Brazil is represented by rock assemblages associated to sedimentary successions, deposited in strike-slip basins formed at the post-collisional stages of the Brasilian/Pan-African orogenic cycle. The best-preserved volcano sedimentary associations occur in the Camaquã and Campo Alegre Basins, respectively in th...

The Tengchong Cenozoic volcanic field lies in SE margin of the Tibetan Plateau. basalts exhibit evident spatial-temporal variations, but consensus on their meaning has not been reached yet. In this study, we collected from western, central and eastern areas measured whole-rock olivine major trace elements basalts. remarkable chemical isotopic diversity, showing a strong correlation with eruptio...

The origin and geodynamic setting of the Maden Complex, which is situated in the Bitlis–Zagros Suture Zone in the Southeast Anatolian Orogenic Belt, is still controversial due to lack of systematic geological and geochemical data. Here we present new whole rock major–trace–rare earth element data from the Middle Eocene volcanic rocks exposed in Maden Complex and discuss their origin in the ligh...