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Upper Mississippian to lower Pennsylvanian biostratigraphic correlation of the Sahara Platform successions on the northern margin of Gondwana (Morocco, Algeria, Libya)

AuthorsCózar, Pedro ; Somerville, Ian; Vachard, Daniel; Coronado, Ismael ; García-Frank, Alejandra; Medina-Varea, Paula; Said, Ismael; Moral, Begoña del; Rodríguez, Sergio
Late Mississippian
North Africa
Saharan basins
Issue DateAug-2016
CitationGondwana Research - International Geoscience Journal 36: 459-472 (2016)
AbstractRevision of several important Carboniferous stratigraphic successions in basins in the Saharan Platform allows us to propose distinct biostratigraphical boundaries for the upper Viséan, lower and upper Serpukhovian and lower Bashkirian, with the latter boundary separating upper Mississippian from lower Pennsylvanian strata. The boundaries are not only defined primarily by foraminifers but also incorporate ammonoid and conodont data. This study shows that the positioning of some boundaries differs significantly from previous studies in the region. For the studied interval, it can be recognized that two well-defined tectonic events were widespread in the entire Sahara Platform: a mostly late Viséan event and a latest Serpukhovian–early Bashkirian event. Both tectonic events show a marked tendency to become younger eastward, and they are compared to the intra-Viséan phase of the Variscan Orogeny and the main phase of this orogeny, respectively.
Publisher version (URL)https://doi.org/10.1016/j.gr.2015.07.019
Appears in Collections:(IGEO) Artículos
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