Titlebook: Magmatism in Extensional Structural Settings; The Phanerozoic Afri A. B. Kampunzu (Faculté des Sciences de Saint-Jér? Conference proceeding

follicular-unit

The Mesozoic Tholeiitic Province of Northwest Africa: A Volcano-Tectonic Record of the Early OpeningGeikie 1903) and “flood basalts” (Tyrrel 1937). They consist of large accumulations of basaltic lava piles of fissural origin associated with extensive dyke swarms and hypabyssal sills, overlaying areas up to thousands of square kilometers, and ranging from Precambrian to Tertiary times, so that, ex

inconceivable

逗它小傻瓜

拋物線

The Cameroon Line: A Reviewnment of oceanic and continental volcanic massifs and of anorogenic plutonic complexes trending N 30° from Pagalú Island to Lake Chad (Gèze 1941). It is now considered (Moreau et al. 1987b) as a Pan-African lineament more or less permanently rejuvenated from the Late Precambrian to the Present. The

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