Geochemical and isotopic composition of basalts from the axial Mid-Atlantic Ridge, South Atlantic, supplement to: Skolotnev, Sergey G; Peive, A A; Belyatsky, Boris V (2006): Geochemical and isotopic features of basalts in the axial Mid-Atlantic Ridge near the Martin Vaz Fracture Zone, South Atlantic (19°-20° S). Doklady Earth Sciences, 407A(3), 401-407


One of the essential problems of oceanic tectonics is estimation of the influence of plumes of the deep hot mantle on processes in the axial spreading zone. Areas of two giant (St. Helena and Tristan da Cunha) plumes in the Mid-Atlantic Ridge (MAR) rift zone (South Atlantic) are characterized by the effusion of basalts that differ from typical depleted riftogenic tholeiites by anomalously high contents of lithophile components and specific isotopic compositions. Moreover, the rift valley floor with basalt effusion is significantly uplifted above the adjacent sectors of the rift.

Metadata Access
Creator Belyatsky, Boris V;Peive, A A;Skolotnev, Sergey G
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2006
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Collection of Datasets
Format application/zip
Discipline Earth System Research
Spatial Coverage (12S-11S,21W-20W)
Temporal Point 2002-01-01T11:59:59Z