Compilation of geochronological data for Cenozoic volcanic activity on the African plate and for selected Northern African sedimentary basins

A compilation of published isotope geochronological data for Cenozoic volcanic / magmatic activity on the African plate and for part of the adjacent Antarctic plate was created within the African Plate project (TAP; collaboration between NGU and Statoil). This compilation covers the continental as well as the oceanic part of the African plate. Areas with documented recent or historic volcanic or magmatic activity are also included. In addition, geochronological data for selected Northern African sedimentary basins (Tadouenni, Kufra, Murzuq, Illizi, Sirte) were included. The vast majority of these data are from surface outcrops in areas immediately adjacent to these basins, rather than from the basins themselves (where few published isotope ages exist). Published data included in this database are obtained from the following isotope geochrologogical methods: Ar/Ar, K/Ar, Re/Os, Rb/Sr, Sm/Nd, Lu/Hf, FT, U/Pb, Pb/Pb and U-Th/Pb. Detailes on laboratory methodologies, age statistics, etc., are included as much as possible. For the Conozoic volcanics a subdivision into alkaline and non-alkaline rocks were made following a broad definition by Woolley (2001) as well as a much more narrow definition by Kevin C. Burke (including only nephelinite, nepheline syenite, phonolite and sövite).

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Available:
NGU-biblioteket
Series:
NGU-rapport
Series nr:
2012.014
Page number:
36 + Appen
ISSN:
0800-3416
Document type:
Rapport
Project:
The African Plate (TAP) - Lithosphere and Mantle Int.
Project nr:
326100