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After the Gondwana break-up and Greater India splitting off, Madagascar suffered volcanic episodes. The Cretaceous Morondava flood basalt (CFB) province was emplaced ca. 93 Ma ago. Two coeval high-Ti–P (HTP) and low-Ti–P (LTP) suites are distributed within the alkaline Ankilizato (central) and tholeiitic Manamana (southern) sub-provi Madagascar volcanic provinces linked to the Gondwana break-up: geochemical and isotopic evidences for contrasting mantle sources
Year: 2009
Author: Bardintzeff, J.M., Liégeois, J.P., Bonin, B., Bellon, H., Rasamimanana, G.
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Last modified 2010-03-01
The Fomopéa plutonic complex in West Cameroon comprises three petrographical units: a biotite–hornblende granitoid (BHG) including some diorite, a biotite monzogranite (BmG) and an edenite syenogranite (EsG). Amphibolites occur within each unit. The massif was emplaced into a Pan-African amphibolite-facies metamorphic basement. All rocks d Nature, origin and significance of the Fomopéa Pan-African high-K calc-alkaline plutonic complex in the Central African fold belt (Cameroon)
Year: 2010
Author: Kwekam, M., Liégeois, J.P., Njonfang, E., Affaton, P., Hartmann, G., Toteu, S.F., Tchoua, F.
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Created by jpl
Last modified 2010-03-01
Neoproterozoic gneisses at Meatiq and Hafafit in the Eastern Desert of Egypt give Rb–Sr and U–Pb zircon ages of 600–750 Ma. These gneisses are interpreted by different workers to represent deeper levels of juvenile Neoproterozoic crust or Archaean/Palaeoproterozoic crust that was remobilized during Neoproterozoic time. Geochemi Sr–Nd isotopes and geochemistry of granite-gneiss complexes from the Meatiq and Hafafit domes, Eastern Desert, Egypt: No evidence for pre-Neoproterozoic crust
Year: 2010
Author: Liégeois, J.P., Stern, R.J.
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Created by jpl
Last modified 2010-03-01
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