Výsledky vyhledávání - "Pascal Affaton"

Pan-African deformation markers in the migmatitic complexes of Parakou–Nikki (Northeast Benin)

Autor: Urbain Wenmenga, F. Kalsbeek, M.S. Tairou, D. Chala, Maurice Kwékam, Pascal Affaton, A. Houéto, C. Tossa

Publikováno v: Journal of African Earth Sciences. 111:387-398

The analysis of structural markers collected from the petrostrutural units of Parakou-Nikki, in Northeast Benin, indicates that the Pan-African remobilization or rejuvenation (600 ± 50 Ma) of the Benino-Nigerian Metacraton consits of a wide migmatiz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa473ee033cdba3c27a9cacf767cb0e3
https://doi.org/10.1016/j.jafrearsci.2015.08.009

Zobrazit plný text záznamu

Microfacies, paleoenvironments and development pattern of Neoproterozoic cap carbonates in the Niari–Nyanga Basin (Congo and Gabon Republics, Central Africa)

Autor: Hélène Miche, Didier Vandamme, Michel Mbina Mounguengui, François Fournier, Dieudonné Maurice Malounguila Nganga, Florent Boudzoumou, Olivia-Rosereine Mickala, Daniel Borschneck, Laurence Vidal, Pascal Affaton

Publikováno v: Journal of African Earth Sciences. 109:27-36

In the Niari–Nyanga Basin, the Neoproterozoic SCI Formation of the Schisto-Calcaire Group includes a lower member (SCIa), made up of carbonates and corresponding to the cap carbonate that unconformably overlies the Marinoan glacial diamictite. Petr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a0769ce95a692e4b88d8dbfa50e2135
https://doi.org/10.1016/j.jafrearsci.2015.05.009

Zobrazit plný text záznamu

Establishment of a lithostratigraphic column in the Beli area (Northeastern Burkina Faso, West Africa) based on the occurrence of a glacial triad and a molassic sequences in Neoproterozoic sedimentary formations. Implications for the Pan-African orogeny

Autor: Alain Blot, Alain Georges Nebie, Pascal Affaton, Jean-Dominique Meunier, Mariette Y.W. Miningou

Publikováno v: Journal of African Earth Sciences
Journal of African Earth Sciences, Elsevier, 2017, 131, pp.80-97. ⟨10.1016/j.jafrearsci.2017.03.016⟩
Journal of African Earth Sciences, 2017, 131, pp.80-97. ⟨10.1016/j.jafrearsci.2017.03.016⟩

International audience; Les travaux menes des les annees 60 dans les formations sedimentaires de la region du Beli n'ont pas permis letablissement d'une echelle lithostratigraphique. Dans la presente etude, qui s'appuie sur une approche terrain a tra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afe59473126413e59621938b4be481fe
https://hal.archives-ouvertes.fr/hal-01765586

Zobrazit plný text záznamu

Geochemical characterization of the Marinoan 'Cap Carbonate' of the Niari-Nyanga Basin (Central Africa)

Autor: François Fournier, Daniel Borschneck, Pascal Affaton, Didier Vandamme, Dieudonné Maurice Malounguila Nganga, Michel Mbina Mounguengui, Florent Boudzoumou, Laurence Vidal, Olivia-Rosereine Mickala, Hélène Miche

Publikováno v: Precambrian Research. 255:367-380

Despite recent works on the Schisto-calcaire Group of the West-Congolian Supergroup in Central Africa, Neoproterozoic Cap Carbonate have not been well documented in the Niari-Nyanga basin that extends from Gabon to Angola. The couplet “Cap Carbonat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::662056791269468c390dff8c57ece4b0
https://doi.org/10.1016/j.precamres.2014.10.001

Zobrazit plný text záznamu

New Computerized Method for the Geochemical Classification of Precambrian Carbonate Rocks: Case of a Set of African Cap Carbonates

Autor: Olivia Mickala, Pascal Affaton, Roland Simler, Hélène Miche, Florent Boudzoumou, Michel Mbina

Publikováno v: International Journal of Geosciences
International Journal of Geosciences, Scientific Research 2013, 4 (10A), pp.37-49. ⟨10.4236/ijg.2013.410A005⟩
International Journal of Geosciences, 2013, 4 (10A), pp.37-49. ⟨10.4236/ijg.2013.410A005⟩

International audience; Post-sedimentary transformations have masked or completely obliterated the structures and textures of Precambrian carbonate rocks. Therefore, methods of classification of the carbonate rocks founded on the observation of prima

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::718532dccefa89b1dde2557525beabcc
https://doi.org/10.4236/ijg.2013.410a005

Zobrazit plný text záznamu

Structural Organization and Tectono-Metamorphic Evolution of the Pan-African Suture Zone: Case of the Kabye and Kpaza Massifs in the Dahomeyide Orogen in Northern Togo (West Africa)

Autor: Mahaman Sani Tairou, Pascal Affaton

Publikováno v: International Journal of Geosciences. :166-182

The Kabye and Kpaza Massifs correspond to two main granulitic suites in the suture zone of the Pan-African Dahomeyide orogenic belt, in northern Togo. The Kabye Massif is composed of an important west verging nappe pile subdivided into two petrograph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0c65f0261ef9c293293a2aa077aa598
https://doi.org/10.4236/ijg.2013.41015

Zobrazit plný text záznamu

The Pan-African West Congo belt in the Republic of Congo (Congo Brazzaville): Stratigraphy of the Mayombe and West Congo Supergroups studied by detrital zircon geochronology

Autor: Roland Trompette, Feiko Kalsbeek, Robert Frei, Kristine Thrane, Florent Boudzoumou, Pascal Affaton

Publikováno v: Precambrian Research
Precambrian Research, 2016, 272, pp.185-202. ⟨10.1016/j.precamres.2015.10.020⟩
Precambrian Research, Elsevier, 2016, 272, pp.185-202. ⟨10.1016/j.precamres.2015.10.020⟩

International audience; The African part of the Neoproterozoic Aracuai-West Congo orogen forms a more than 1400 km long belt, running from Gabon in the north to Angola in the south, parallel to the South Atlantic coast. It consists of the West Congo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9594235af9ea72158d119847ccf5685a
https://hal.science/hal-01758954

Zobrazit plný text záznamu

Neogene/Quaternary boundary in the coastal basin of Togo

Autor: Pascal Affaton, Ampah Kodjo C. Johnson, Pauline Yawoa D. Da Costa, Mahaman Sani Tairou

Publikováno v: Quaternary International. 262:32-38

The end of the Neogene in the emerged part of the Togolese coastal basin corresponds to a sandy–argillaceous complex of continental appearance devoid of marine fauna and generally attributed to the “Continental terminal” in the neighboring West

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1d6cc42855f9df67c549147c7eea7ec
https://doi.org/10.1016/j.quaint.2011.01.029

Zobrazit plný text záznamu

New igneous zircon Pb/Pb and metamorphic Rb/Sr ages in the Yaounde Group (Cameroon, Central Africa): implications for the Central African fold belt evolution close to the Congo Craton

Autor: Marion Tichomirowa, Joseph Mvondo Ondoa, Lothar Ratschbacher, Sébastien Owona, Dieudonné Youmen, Jörg A. Pfänder, Félix M. Tchoua, Georges Emmanuel Ekodeck, Pascal Affaton

Publikováno v: International Journal of Earth Sciences. 101:1689-1703

Three meta-igneous bodies from the Yaounde Group have been analyzed for their petrography, geochemistry, and 207Pb/206Pb zircon ages. According to their geochemical patterns, they represent meta-diorites. The meta-plutonites yielded identical zircon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f8aba81e9f2795013fc986c544c9618a
https://doi.org/10.1007/s00531-012-0751-x

Zobrazit plný text záznamu

Geochronology of granitoid and metasedimentary rocks from Togo and Benin, West Africa: Comparisons with NE Brazil

Autor: Barth N. Ekwueme, Robert Frei, Kristine Thrane, Feiko Kalsbeek, Pascal Affaton

Publikováno v: Precambrian Research. :218-233

The westernmost part of the Pan-African (c. 600 Ma) Dahomeyide orogen in Togo and Benin consists of a complex stack of thrust sheets, mainly composed of Palaeoproterozoic (‘Eburnean’, c. 2000 Ma) granitoid rocks and younger volcanic and metasedim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::308588a889d9b40c57a7e20ddd7a1700
https://doi.org/10.1016/j.precamres.2011.12.006

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání