Výsledky vyhledávání - "Alembert Alexandre Ganwa"

Petrology and geochemistry of metamorphic and intrusive rocks at Ngaye in the Adamawa-Yadé domain, northeastern Cameroon: implications for their genesis and tectonic setting

Autor: Sylvestre Ganno, Gentry C. Fuh, Tessontsap Teutsong, Gaelle S. N. Assomo, Paul-Désiré Ndjigui, Alembert Alexandre Ganwa

Publikováno v: Geosciences Journal. 26:55-78

Ngaye area belongs to the Adamawa-Yade domain (AYD) of the Central African Fold Belt (CAFB) in Cameroon. It is underlain by gneisses and amphibolites intruded by a variety of granitoids including granites and granodiorites. Petrographic, mineralogica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0f585a13b7db46437cec8814306dbbe
https://doi.org/10.1007/s12303-021-0024-4

Zobrazit plný text záznamu

Structural Relationship between Brittle Deformation and Paleozoic to Mesozoic Basalt Dykes in the Precambrian Basement of the Southern Continental Part of the Cameroon Volcanic Line

Autor: Depesquidoux Tchaptchet Tchato, Alembert Alexandre Ganwa, Jean Pierre Tchouankoue, Rose Noel Ngo Belnoun, Nicole Armelle Wambo Simeni

Publikováno v: International Journal of Geosciences. :318-331

The work is a vivid description of the structural relationship between brittle deformation of the Precambrian basement in the southern continental part of the Cameroon Line and intrusive Paleozoic and Mesozoic basalt dykes swarms. A multidisciplinary

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4ec8083f26d50daa819832463e88330
https://doi.org/10.4236/ijg.2017.83016

Zobrazit plný text záznamu

Evidence for Archean inheritance in the pre-Panafrican crust of Central Cameroon: Insight from zircon internal structure and LA-MC-ICP-MS UPb ages

Autor: Alembert Alexandre Ganwa, Urs Klötzli, Christoph Hauzenberger

Publikováno v: Journal of African Earth Sciences. 120:12-22

The main geological feature of Central Cameroon is the wide spread occurrence of granitoids emplaced in close association with transcurrent regional shear zones. The basement of this vast domain is a Paleoproterozoic ortho-and para-derivative formati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8d9253eb9bdfbafe5e5916e8c910368
https://doi.org/10.1016/j.jafrearsci.2016.04.013

Zobrazit plný text záznamu

The dolerite dyke swarm of Mongo, Guéra Massif (Chad, Central Africa): Geological setting, petrography and geochemistry

Autor: Oumar Mahamat, Oumarou F. Nkouandou, Alembert Alexandre Ganwa, Jacques-Marie Bardintzeff, Aminatou Fagny Mefire

Publikováno v: Open Geosciences, Vol 9, Iss 1, Pp 138-150 (2017)

Dolerite dykes are widespread in the Mongo area within the granitic Guéra Massif (Chad, Central Africa). Dykes are several hundred metres to several kilometres long, a metre to decametre thick, and vertical, crosscutting the Pan-African granitic bas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::363df0572c463e4b3851a0600037c41c
https://doi.org/10.1515/geo-2017-0012

Zobrazit plný text záznamu

Petrographic and structural analysis of the Precambrian rocks in the Zalbi Sector, northwest Léré, Chad

Autor: L. Tekoum, J. C. Doumnang, F. Sun, Alembert Alexandre Ganwa, Rigobert Tchameni

Publikováno v: Australian Journal of Earth Sciences. 60:649-658

The northwestern part of southwest Chad is one of the best regions to find exposed Precambrian terrains and their Phanerozoic cover. In this area, it is easy to establish the lithostratigraphic and structural relationships between sedimentary and gra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10f1d87982ee0187da3451450db8341e
https://doi.org/10.1080/08120099.2013.814589

Zobrazit plný text záznamu

Geochemistry of magmatic rocks and time constraints on deformational phases and shear zone slip in the Méiganga area, central Cameroon

Autor: C. K. Shang, Alembert Alexandre Ganwa, Wolfgang Frisch, Wolfgang Siebel

Publikováno v: International Geology Review. 53:759-784

The Meiganga area is situated in the Adamawa–Yade domain (AYD) of the Pan-African fold belt in Cameroon. The AYD is characterized by abundant plutonic rocks that intruded Palaeoproterozoic gneisses. It is cut by the transcurrent Central Cameroonian

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1cce344787e92282730df49c56da1fbb
https://doi.org/10.1080/00206810903211161

Zobrazit plný text záznamu

Zircon 207Pb/206Pb evaporation ages of Panafrican metasedimentary rocks in the Kombé-II area (Bafia Group, Cameroon): Constraints on protolith age and provenance

Autor: C. K. Shang, Alembert Alexandre Ganwa, Wolfgang Siebel, Jacqueline Tchakounte Numbem, Joseph Mvondo Ondoa, Wolfgang Frisch, Muharrem Satir

Publikováno v: Journal of African Earth Sciences. 51:77-88

The Kombe-II area belongs to the southern part of the Cameroonian Panafrican belt. It is made up of different gneisses, amphibolites and quartzites of the Bafia Group. This volcano-sedimentary rock sequence became polyphasely deformed and metamorphos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a66de1da6fd6a9ad306669c8d960281
https://doi.org/10.1016/j.jafrearsci.2007.12.003

Zobrazit plný text záznamu

Archean inheritances in the pyroxene–amphibole-bearing gneiss of the Méiganga area (Central North Cameroon): Geochemical and 207Pb/206Pb age imprints

Autor: Vincent Ngako, Wolfgang Frisch, Wolfgang Siebel, Georges Emmanuel Ekodeck, Alembert Alexandre Ganwa, Cosmas K. Shang

Publikováno v: Comptes Rendus Geoscience. 340:211-222

The Meiganga area is located in the central part of the Panafrican belt of Cameroon. This region is underlain by a granitic and gneissic basement, crosscut, and covered by basaltic and phonolitic rocks. To the southwest of Meiganga, the pyroxene-anda

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73b8f3f68b59097bcadec3293a7868c7
https://doi.org/10.1016/j.crte.2007.12.009

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání