Basalts of a Seamount on the Eastern Flank of the Charlie Gibbs Transform Fracture Zone, North Atlantic: Petrochemical and Isotopic Evidence of a Microplume-Affected Formation in the Axial Zone of the Mid-Atlantic Ridge
S. G. Skolotnev,
A. A. Peyve,
S. A. Dokashenko
et al.
Abstract:The composition of basalts dredged from the slopes of a single seamount (guyot), which is located south of the eastern end of the Charlie Gibbs Fracture Zone in the North Atlantic, is studied. Groups of high- and low-Ti rocks, which belong to oceanic tholeiites of the E-MORB and T-MORB types, respectively, are recognized. The first group of basalts have higher contents of TiO2, Na2O, K2O, P2O5, Fe2O3, and incompatible trace elements. The basalts of both groups are similar in the normalized lithophile element p… Show more
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