Chemical composition of basalts and basaltic glasses from the Sierra Leone Fracture Zone region, supplement to: Skolotnev, Sergey G; Peyve, Alexander A; Lyapunov, Sergey M; Simonov, Vladimir A; Glazyrin, Yu E; Kolobov, V Yu (2003): MAR volcanism in the Sierra Leone Fracture Zone region, Central Atlantic. Russian Journal of Earth Sciences, 5(2), 100-123

Sergey G Skolotnev, Alexander A Peyve, Sergey M Lyapunov, Vladimir A Simonov, Yu E Glazyrin & V Yu Kolobov
Major and trace element (including REE) geochemistry of basalts and chilled basaltic glasses from the MAR axial zone in the vicinity of the Sierra Leone FZ (5-7°10'N) has been studied. Associations of basalts of various compositions with particular ocean-floor geological structural features have been analyzed as well. Three basaltic varieties have been discriminated. Almost ubiquitous are high-Mg basalts (Variety 1) that are derivatives of N-MORB tholeiitic melts and that are produced in the axial zone...
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