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1

Surface Erosion of Carbon Steel 1045 During Waterjet Peening

Azhari, Azmir, Schindler, Christian, Nkoumbou, Jhislain, Kerscher, Eberhard

Journal:

Journal of Materials Engineering and Performance

Année:

2014

Langue:

english

Fichier:

PDF, 2.32 MB

english, 2014

2

Genesis of Mayouom kaolin deposit (western Cameroon)

A. Njoya, C. Nkoumbou, C. Grosbois, D. Njopwouo, D. Njoya, A. Courtin-Nomade, J. Yvon, F. Martin

Journal:

Applied Clay Science

Année:

2006

Langue:

english

Fichier:

PDF, 1.14 MB

english, 2006

3

Refractory ceramics from clays of Mayouom and Mvan in Cameroon

C.N. Djangang, A. Elimbi, U.C. Melo, G.L. Lecomte, C. Nkoumbou, J. Soro, J. Yvon, P. Blanchart, D. Njopwouo

Journal:

Applied Clay Science

Année:

2008

Langue:

english

Fichier:

PDF, 985 KB

english, 2008

4

Physicochemical properties of talc ore from Pout-Kelle and Memel deposits (central Cameroon)

Nkoumbou, C., Villieras, F., Barres, O., Bihannic, I., Pelletier, M., Razafitianamaharavo, A., Metang, V., Yonta Ngoune, C., Njopwouo, D., Yvon, J.

Journal:

Année:

2008

Langue:

english

Fichier:

PDF, 1.76 MB

english, 2008

5

Petrology and geochemistry of REE-rich Mafé banded iron formations (Bafia group, Cameroon)

Nkoumbou, Charles, Gentry, Fuh Calistus, Tchakounte Numbem, Jacqueline, Belle Ekwe Lobé, Yolande Vanessa, Nwagoum Keyamfé, Christin Steve

Journal:

Comptes Rendus Geoscience

Année:

2017

Langue:

english

Fichier:

PDF, 1.93 MB

english, 2017

6

Caractérisation chimique et minéralogique de quelques indices de bauxite de Foumban (Ouest-Cameroun)

Njoya, D., Njoya, A., Ngueteu, A. Kamlo, Tchuindjang, Y.D., Nkoumbou, C.

Journal:

International Journal of Biological and Chemical Sciences

Année:

2017

Langue:

french

Fichier:

PDF, 304 KB

french, 2017

7

Sintering of clay-chamotte ceramic composites for refractory bricks

C.N. Djangang, A. Elimbi, U.C. Melo, G.L. Lecomte, C. Nkoumbou, J. Soro, J.P. Bonnet, P. Blanchart, D. Njopwouo

Journal:

Ceramics International

Année:

2008

Langue:

english

Fichier:

PDF, 863 KB

english, 2008

8

Talc indices from Boumnyebel (Central Cameroon), physico-chemical characteristics and geochemistry

C. Nkoumbou, D. Njopwouo, F. Villiéras, A. Njoya, C. Yonta Ngouné, L. Ngo Ndjock, F.M. Tchoua, J. Yvon

Journal:

Journal of African Earth Sciences

Année:

2006

Langue:

english

Fichier:

PDF, 644 KB

english, 2006

9

Physicochemical properties of talc ore from three deposits of Lamal Pougue area (Yaounde Pan-African Belt, Cameroon), in relation to industrial uses

Charles Nkoumbou, Frédéric Villieras, Daniel Njopwouo, Clément Yonta Ngoune, Odile Barres, Manuel Pelletier, Angelina Razafitianamaharavo, Jacques Yvon

Journal:

Applied Clay Science

Année:

2008

Langue:

english

Fichier:

PDF, 1.81 MB

english, 2008

10

Kaolin from Mayouom (Western Cameroon): Industrial suitability evaluation

C. Nkoumbou, A. Njoya, D. Njoya, C. Grosbois, D. Njopwouo, J. Yvon, F. Martin

Journal:

Applied Clay Science

Année:

2009

Langue:

english

Fichier:

PDF, 345 KB

english, 2009

11

Découverte des roches à affinité ophiolitique dans la chaîne panafricaine au Cameroun : les talcschistes de Ngoung, Lamal Pougue et Bibodi Lamal

Charles Nkoumbou, Clément Yonta Goune, Frédéric Villiéras, Daniel Njopwouo, Jacques Yvon, Georges Emmanuel Ekodeck, Félix Tchoua

Journal:

Comptes Rendus Geoscience

Année:

2006

Fichier:

PDF, 1.26 MB

2006

12

Petrology and geochemistry of monogenetic volcanoes of the Barombi Koto volcanic field (Kumba graben, Cameroon volcanic line): Implications for mantle source characteristics

Jules Tamen, Charles Nkoumbou, Lucas Mouafo, Eric Reusser, Félix M. Tchoua

Journal:

Comptes Rendus Geoscience

Année:

2007

Fichier:

PDF, 878 KB

2007

13

Ni-Co sulphide segregation in the Mamb pyroxenite intrusion, Cameroon

Charles Nkoumbou, Frédéric Villiéras, Pierre Barbey, Clément-Yonta Ngoune, Robert Joussemet, Frédéric Diot, Daniel Njopwouo, Jacques Yvon

Journal:

Comptes Rendus Geoscience

Année:

2009

Fichier:

PDF, 914 KB

2009

14

Geological context of the Boumnyebel talcschists (Cameroun): Inferences on the Pan-African Belt of Central Africa

Clément Yonta-Ngoune, Charles Nkoumbou, Pierre Barbey, Nicole Le Breton, Jean-Marc Montel, Frédéric Villieras

Journal:

Comptes Rendus Geoscience

Année:

2010

Langue:

english

Fichier:

PDF, 710 KB

english, 2010

15

Éruptions simultanées de basalte alcalin et de hawaiite au mont Cameroun (28 mars–17 avril 1999)

Bernard Déruelle, Jacques-Marie Bardintzeff, Jean-Louis Cheminée, Ismaïla Ngounouno, Justin Lissom, Charles Nkoumbou, Jacques Étamé, Joseph-Victor Hell, Gregory Tanyileke, Jean N'ni, Bekoa Ateba, Ntom

Journal:

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science

Année:

2000

Fichier:

PDF, 727 KB

2000

16

Le volcanisme fissural néoprotérozoïque des séries du Dja inférieur, de Yokadouma (Cameroun) et de Nola (RCA) — Signification géotectonique

Jean-Paul Vicat, André Pouclet, Charles Nkoumbou, Aubin Semé Mouangué

Journal:

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science

Année:

1997

Fichier:

PDF, 811 KB

1997

17

Pre-collisional geodynamic context of the southern margin of the Pan-African fold belt in Cameroon

Nkoumbou, C., Barbey, P., Yonta-Ngouné, C., Paquette, J.L., Villiéras, F.

Journal:

Journal of African Earth Sciences

Année:

2014

Langue:

english

Fichier:

PDF, 4.06 MB

english, 2014

18

Petrology and geochemistry of mantle xenoliths from the Kapsiki Plateau (Cameroon Volcanic Line): Implications for lithospheric upwelling

Tamen, Jules, Nkoumbou, Charles, Reusser, Eric, Tchoua, Felix

Journal:

Journal of African Earth Sciences

Année:

2015

Langue:

english

Fichier:

PDF, 1.68 MB

english, 2015

19

Petrology of Mt Etinde Nephelinite Series

NKOUMBOU, C., D RUELLE, B., VELDE, D.

Journal:

Journal of Petrology

Année:

1995

Langue:

english

Fichier:

PDF, 4.34 MB

english, 1995

20

Characterization for industrial applications of clays from Lembo deposit, Mount Bana (Cameroon)

Pialy, P., Nkoumbou, C., Villiéras, F., Razafitianamaharavo, A., Barres, O., Pelletier, M., Ollivier, G., Bihannic, I., Njopwouo, D., Yvon, J., Bonnet, J-.P.

Journal:

Année:

2008

Langue:

english

Fichier:

PDF, 2.47 MB

english, 2008

21

Characterization of clays from Mezafe and Mengono (Ne-Libreville, Gabon) for potential uses in fired products

Boulingui, J.E., Nkoumbou, C., Njoya, D., Thomas, F., Yvon, J.

Journal:

Applied Clay Science

Année:

2015

Langue:

english

Fichier:

PDF, 3.03 MB

english, 2015

22

Physico-chemistry and geochemistry of Balengou clay deposit (West Cameroon) with inference to an argillic hydrothermal alteration

Tassongwa, Bernard, Eba, François, Njoya, Dayirou, Tchakounté, Jacqueline Numbem, Jeudong, Narcisse, Nkoumbou, Charles, Njopwouo, Daniel

Journal:

Comptes Rendus Geoscience

Année:

2017

Langue:

english

Fichier:

PDF, 2.48 MB

english, 2017

23

Reply to comment by M. Bouyo on “The Adamawa–Yade domain, a piece of Archaean crust in the Neoproterozoic Central African Orogenic belt (Bafia area, Cameroon)“, by Jacqueline Tchakounté et al., Precambrian Research 299 (2017) 210–229

Tchakounté, Jacqueline, Eglinger, Aurélien, Félix Toteu, Sadrak, Zeh, Armin, Nkoumbou, Charles, Mvondo-Ondoa, Joseph, Penaye, Joseph, de Wit, Martin, Barbey, Pierre

Journal:

Precambrian Research

Année:

2017

Langue:

english

Fichier:

PDF, 384 KB

english, 2017

24

Reply to comment by Ngako and Njonfang on “The Adamawa–Yade domain, a piece of Archaean crust in the Neoproterozoic Central African Orogenic belt (Bafia area, Cameroon)“, by Jacqueline Tchakounté et al., Precambrian Research 299 (2017) 210–229

Tchakounté, Jacqueline, Eglinger, Aurélien, Toteu, Sadrak Félix, Zeh, Armin, Nkoumbou, Charles, Mvondo-Ondoa, Joseph, Penaye, Joseph, de Wit, Martin, Barbey, Pierre

Journal:

Precambrian Research

Année:

2017

Langue:

english

Fichier:

PDF, 391 KB

english, 2017

25

Geochemical and Mineralogical Characteristics of the Mayouom Kaolin Deposit, West Cameroon

Tassongwa, B., Nkoumbou, C., Njoya, D., Njoya, A., Tchop, J. L., Yvon, J., Njopwouo, D.

Journal:

Earth Science Research

Année:

2014

Langue:

english

Fichier:

PDF, 1.09 MB

english, 2014

26

CO2-rich fluid inclusions in mantle xenoliths from Barombi-Mbo and Nyos maars (Cameroon volcanic line, central Africa): Upper mantle equilibria and history of magma ascension

Tene Djoukam, Joëlle Flore, Nkoumbou, Charles, Tchouankoué, Jean Pierre, Pintér, Zsanett, Moritz, Robert

Journal:

Journal of African Earth Sciences

Année:

2018

Langue:

english

Fichier:

PDF, 1.89 MB

english, 2018

27

Chemical and mineralogical characterization and ceramic suitability of raw feldspathic materials from Dschang (Cameroon)

Njoya, D., Hajjaji, M., Nkoumbou, C., Elimbi, A., Kwekam, M., Njoya, A., Yvon, J., Njopwouo, D.

Journal:

Bulletin of the Chemical Society of Ethiopia

Année:

2010

Langue:

english

Fichier:

PDF, 1.63 MB

english, 2010

28

Petrology and geochemistry of the Yoro-Yangben Pan-African granitoid intrusion in the archaean Adamawa-Yade crust (Sw-Bafia, Cameroon)

Ngamy Kamwa, Aurélie, Tchakounte, Jacqueline Numbem, Nkoumbou, Charles, Owona, Sébastien, Tchouankoue, Jean-Pierre, Mvondo Ondoa, Joseph

Journal:

Journal of African Earth Sciences

Année:

2018

Langue:

english

Fichier:

PDF, 1.23 MB

english, 2018

29

Geology and geotechnical characteristics of the Gbago and Ngouaka plutonic rocks, North East of Bangui, Central Africa Republic

Vonto, David Christian, Tchakounte, Numbem Jacqueline, Gentry, Fuh Calistus, Zaguy-Guerembo, Raoul Ludovic, Zame, Philemon Zo'o, Djanarthany, Sarala, Nkoumbou, Charles

Journal:

Journal of African Earth Sciences

Année:

2020

Fichier:

PDF, 3.63 MB

2020