Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Benoît Joseph Mbassa"'
Autor:
Dieudonné Tchokona Seuwui, Hervé Bellon, Benoît Joseph Mbassa, Rose Noel Ngo Belnoun, Pierre Wandji, Pierre Wotchoko, Jacques-Marie Bardintzeff, Sébastien Owona, Zénon Itiga
Publikováno v:
Journal of Geosciences and Geomatics. 9:160-176
The Cretaceous Ngaou Boh anorogenic complex (NBAC) located in the far North Adamawa Plateau, the centre domain of the Cameroon Line constitutes a plutonic-volcanic ring association. The whole rock K-Ar datation yields a crystallization age of ca. 74
Autor:
Benoît Joseph Mbassa, Caroline Neh Ngwa, Jacques Dili-Rake, Moïse Bessong, Zénon Itiga, Mero Yannah, Emmanuel Njonfang, Pierre Kamgang
Publikováno v:
Arabian Journal of Geosciences. 15
Autor:
Pauline N. Wokwenmendam, Benoît Joseph Mbassa, Festus Tongwa Aka, Bless Ngwa Shu, Caroline Neh Ngwa
Publikováno v:
Mineralogy and Petrology. 114:57-70
We report olivine chemistry in basaltic rocks from the Mt. Cameroon Volcanic area, which is used as a proxy to understand mantle and early igneous processes along the ocean-continent segment of the Cameroon Volcanic Line. Most primitive olivine pheno
Autor:
Pierre Kamgang, Moïse Bessong, Benoît Joseph Mbassa, Caroline Neh Ngwa, Emmanuel Njonfang, Zénon Itiga, Mfomou Ntepe
Publikováno v:
Arabian Journal of Geosciences. 14
Bulk rock geochemical characteristics and Sr–Nd isotopic data were used as a proxy to evidently ascertain the adakitic affinity or signature of the basement rock samples from the Mbengwi region, located within the Pan-African North Equatorial fold
Publikováno v:
Journal of Volcanology and Geothermal Research. 384:179-188
With seven major eruptions in the 20th century, Mount Cameroon is one of the most active volcanoes in Africa. However, information on the volcano's plumbing system is still relatively scarce. In order to contribute to filling this knowledge gap, a ge
Publikováno v:
Journal of African Earth Sciences. 181:104245
Compositions of clinopyroxenes and spinels from the ocean/continent boundary of the Cameroon Line are presented. The spinels occur as minute inclusions in olivine phenocrysts from alkali basaltic bombs collected from the Debunscha maar deposit at the
Autor:
Dieudonné Tchokona Seuwui, Bernard Bonin, Benoît Joseph Mbassa, Zénon Itiga, Rose Noel Ngo Belnoun, Ntepe Nfomou, Pierre Wandji, Jacques-Marie Bardintzeff, Pierre Wotchoko, Hervé Bellon
Publikováno v:
Journal of African Earth Sciences
Journal of African Earth Sciences, Elsevier, 2019, 149: (398-425), ⟨10.1016/j.jafrearsci.2018.08.019⟩
Journal of African Earth Sciences, Elsevier, 2019, 149: (398-425), ⟨10.1016/j.jafrearsci.2018.08.019⟩
International audience; In the Cameroon Pan-African orogenic belt, the West Cameroon Domain (WCD) is characterized by the apparent lack of Archean-Paleoproterozoic relicts, the development of Neoproterozoic basins and abundant plutonic massifs. The H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc82332609057ed3362c7f4ce1bf8dbc
https://hal.archives-ouvertes.fr/hal-01900960
https://hal.archives-ouvertes.fr/hal-01900960
Autor:
Pierre Kamgang, Stéphanie Duchêne, Zénon Itiga, Benoît Joseph Mbassa, Michel Grégoire, Pauline Wonkwenmendam Nguet, Mathieu Benoit, Ntepe Nfomou, Emmanuel Njonfang, Moïse Bessong
Publikováno v:
Comptes Rendus Geoscience. 348:116-126
The Mbengwi plutonics consist of intermediate to felsic granitoids forming a continuous magmatic series from monzonite to granite and mafic intrusions. Their mineralogical composition consists of quartz, plagioclases, K-feldspars, biotite, muscovite,
Autor:
Benoît Joseph Mbassa, Pierre Kamgang, Michel Grégoire, Zénon Itiga, Emmanuel Njonfang, Paul Désiré Ndjigui, Mathieu Benoit, Junior Désiré Nolla, Caroline Neh Ngwa
Publikováno v:
Arabian Journal of Geosciences
Arabian Journal of Geosciences, 2018, 11 (21), ⟨10.1007/s12517-018-4018-0⟩
Arabian Journal of Geosciences, Springer, 2018, 11 (21), ⟨10.1007/s12517-018-4018-0⟩
Arabian Journal of Geosciences, 2018, 11 (21), ⟨10.1007/s12517-018-4018-0⟩
Arabian Journal of Geosciences, Springer, 2018, 11 (21), ⟨10.1007/s12517-018-4018-0⟩
The Mbengwi area consists of Cenozoic alkaline rocks and Pan-African calc-alkaline plutonics. The alkaline magmatic series include volcanics (basanites, hawaiites, mugearite, and rhyolite) and syenites while the calc-alkaline plutonics comprise vario
Autor:
Emmanuel Njonfang, Pierre Brunet, Bekoa Ateba, Félix M. Tchoua, Benoît Joseph Mbassa, Pierre Kamgang, Stéphanie Duchêne, Mathieu Benoit, Michel Grégoire
Publikováno v:
Mineralogy and Petrology. 106:217-242
The Mbengwi recent magmatic formations consist of volcanics and syenites belonging to the same magmatic episode. Lavas form a bimodal basanite-rhyolite alkaline series with a gap between 50 and 62 wt.% SiO2. Mafic lavas (basanite-hawaiite) are sodic