REALISATIONS ET PUBLICATIONS
Achievements
Publications (from 2000)

    Geology/geophysics and Mineral Resources

    Articles in peer review journals

  • Aka FT, Nagao K, Kusakabe M, Ntepe N (2009)
    Cosmogenic helium and neon in ultramafic xenoliths from the Cameroon Volcanic Line (West Africa): Preliminary observations. .
    Journal of African Earth Sciences 55: 175-184
  • Aka FT, Kusakabe M, Nagao K, Tanyileke G, Nnange J, Nfomou N (2004)
    Rare gases in mantle-derived rocks from Annobon Island: Preliminary step-heating helium results.
    Journal of Cameroon Academy of Sciences 4 : 163-169
  • Aka FT, Nagao K, Kusakabe M, Sumino H, Tanyileke G, Ateba B, Hell JV (2004)
    Symmetrical Helium isotope distribution on the Cameroon Volcanic Line, West Africa.
    Chemical Geology 203: 205-223
  • Asaah ENA, Yokoyama T, Aka FT, Usui T, Kuritani T, Wirmvem JM, Iwamori H, Fozing EM, Tamen J, Mofor GZ, Ohba T, Tanyileke G, Hell JV (2015)
    Geochemistry of lavas from maar-bearing volcanoes in the Oku Volcanic Group of the Cameroon Volcanic Line.
    Chemical Geology 406: 55-69
  • Asaah ENA, Yokoyama T, Aka FT, Usui T, Wirmvem JM, Chako Tchamabe B, Ohba T, Tanyileke G, Hell JV (2014)
    A comparative review of petrogenetic processes beneath the Cameroon Volcanic Line: Geochemical constraints.
    Geoscience Frontiers 6: 557-570
  • Benammi M, Hell JV, Bessong M, Nolla D, Solé J, Brunet M (2017)
    Preliminary magnetostratigraphic and isotopic dating of the Ngwa Formation (Dschang Western Cameroon). .
    J Geol Geophys 6: 282. DOI: 10.4172/2381-8719.1000282
  • Bouyo Houketchang M, Zhao Y, Penaye J, Zhang SH, Njel UO (2015)
    Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting.
    Precambrian Research 261: 40-51
  • Bouyo Houketchang M, Penaye J, Barbey P, Toteu SF, Wandji P (2013).
    Petrology of high-pressure granulite facies metapelites and metabasites from Tcholliré and Banyo regions: Geodynamic implication for the Central African Fold Belt (CAFB) of north-central Cameroon.
    Precambrian Research 224: 412– 433
  • Bouyo Houketchang M, Toteu SF, Deloule E, Penaye J, Van Schmus WR, (2009)
    U–Pb and Sm–Nd dating of high-pressure granulites from Tcholliré and Banyo regions: Evidence for a Pan-African granulite facies metamorphism in north-central Cameroon.
    Journal of African Earth Sciences 54:144-154
  • Chako TB, Ohaba T, Kereszturi G, Németh K, Aka FT, Youmen D, Issa, Miyabuchi Y, Ooki S, Tanyileke G, Hell VJ (2015)
    Towards the reconstruction of the shallow plumbing system of Barombi Mbo maar (Cameroon): Implications for diatreme growth processes of a polygenetic maar volcano.
    Journal Volcanology and Geothermal Research 301: 296-313
  • Chako TB, Ohba T, Issa, Ooki S, Youmen D, Owona S, Tanyileke G, Hell JV (2014).
    Temporal Evolution of the Barombi Mbo Maar, a Polygenetic Maar-Diatreme Volcano of the Cameroon Volcanic Line.
    Central European Journal of Geosciences 5(4) : 480-496
  • Emilo HB, Ubangoh R, Aka FT, Valet JP (2004)
    Paleomagnetic and paleosecular variation study of the Mt. Cameroon volcanics (0.0–0.25 Ma), Cameroon, West Africa.
    Physics of the Earth and Planetary Interiors 147 : 171–182
  • Feiko Kalsbeek, Barth N. Ekwueme, Penaye J, Zorano S. de Souza, Kristine Thrane (2013)
    Recognition of Early and Late Neoproterozoic supracrustal units in West Africa and North-East Brazil from detrital zircon geochronology.
    Precambrian Research 226: 105– 115
  • Kankeu B, Bassahak J, Penaye J, Hell JV, Jurgen R (2012)
    Geological and Tectonic History of Western Central Africa since the Palaeozoic.
    Palaeoecology of Africa 31: 7-30
  • Kankeu B, Nzenti JP, Greiling RO, Ganno S, Ngnotue T, Bassahak J, Hell JV (2010).
    Application de la technique de l’Anisotropie de la Susceptibilité Magnétique (ASM) à l’identification des structures géologiques: Le cisaillement panafricain de Bétaré- Oya dans le district aurifère de l’Est Cameroun.
    Annales de la Faculté des Sciences, Université de Yaoundé I. 2010, Série Sciences de la Terre, 38(1): 17-29
  • Kankeu B, Greiling RO, Nzenty JP (2009)
    Pan-African strike-slip tectonics in eastern Cameroon - Magnetic fabrics (AMS) and structures in the Lom basin and its gneissic basement.
    Precambrian Research 174: 258–272
  • Kankeu B (2008)
    Anisotropie de la susceptibilité magnétique (ASM) et fabrique des roches Néoprotérozoïques de l'Est Cameroun (régions de Garga- sarali et Betare-Oya ) : Implications géodynamiques pour l’évolution de la chaîne Pan-Africaine d’ Afrique Centrale.
    Thèse Doctorat/PhD. Université de Yaoundé I, Cameroun.
  • Kankeu B, Runge J (2007)
    Late Neoproterozoic Paleogeography of Central Africa: Relation with Holocene geological and geomorphological settings In: Runge J. (ed), Palaeoecology of Africa.: Dynamics of forest ecosystems in Central Africa during the Holocene: Past –Present –Future.
    Palaeoecology of Africa 28: 263-275
  • Kankeu B, Greiling RO (2006)
    Magnetic fabrics (AMS) and transpression in the Neoproterozoic basement of Eastern – Cameroon.
    (Garga- Sarali area) Neues Jahrbuch für Geologie und Paläontologie 239: 26-3287
  • Kankeu B (1997)
    Etude du magmatisme syntectonique panafricain de la région de Voko (Nord-Cameroun).
    Thèse de Doctorat de 3e cycle. Université de Yaoundé, Cameroun
  • Mapoka H, Danguene YPE, Nzenti JP, Biandja J, Kankeu B , Suh CE (2011).
    Major structural features and the tectonic evolution of the Bossangoa- Bossembele Basement, Northwestern Central African Republic.
    The Open Geology Journal 5: 21-32
  • Marzoli A, Aka FT, Merle R, Callegaro S, N’Ni J (2015)
    Deep to shallow crustal differentiation of within-plate alkaline magmatism at Mt. Bambouto volcano, Cameroon Line.
    Lithos 220-223:272-288
  • Marzoli A, Piccirillo EM, Renne PR, Bellieni G, Iacumin M, Nyobe JB, Aka FT (2000)
    The Cameroon Volcanic Line Revisited: Petrogenesis of continental basaltic magmas from lithospheric and asthenospheric mantle sources.
    Journal of Petrology 41: 87-109
  • Ngako V, Affaton P, Njonfang E (2008).
    Pan-African tectonics in northwestern Cameroon: Implication for the history of western Gondwana.
    Gondwana Research 14: 509–522
  • Njonfang E, Ngako V, Moreau C, Affaton P, Diot H, (2008).
    Restraining bends in high temperature shear zones: The ‘‘Central Cameroon Shear Zone”, Central Africa.
    Journal of African Earth Sciences 52: 9–20
  • Ngako V, Njonfang E, Aka FT, Affaton P, Nnange JM (2006)
    The North-South Paleozoic to Quaternary trend of alkaline magmatism from Niger-Nigeria to Cameroon: Complex interaction between hotspots and Precambrian faults.
    Journal of African Earth Sciences 45 : 241-256
  • Sangen M, Eisenberg J, Runge J, Kankeu B, Tchindjang M (2010).
    New finding from geological, geomorphological and sedimentological studies on the palaoenvironment conditions in Southern Cameroon.
    Palaeoecology of Africa 30: 165-188
  • Teitchou MI, Grégoire M, Temdjim R, Ghogogu RT, Ngwa C, Aka FT (2011)
    Mineralogical and geochemical fingerprints of mantle metasomatism beneath Nyos volcano (Cameroon Volcanic Line).
    Geological Society of America Special Papers 478: 193-210
  • Yokoyama T, Aka FT, Kusakabe M, Nakamura E (2007)
    Plume-lithosphere interaction beneath Mt. Cameroon volcano, West Africa: Constraints from 238U-230Th-226Ra and Sr-Nd-Pb isotope systematics.
    Geochimica et Cosmochimica Acta 71 : 1835 –1854
  • Published Abstracts (including posters)

  • Aka FT, Buh WG, Issa, Fantong WY, Ohba T, Kusakabe M, Tanyileke G, Hell JV (2014).
    Preventing limnic eruptions in Lakes Nyos and Monoun within the framework of disaster governance, resilience and preparedness in Cameroon.
    11th Annual Meeting Asia Oceania Geosciences Society (AOGS), 28 July to 01 August, 2014, Sapporo-Japon
  • Aka FT, Yokoyama T, Asaah ANE, Issa, Ohba T, Kusakabe M, Sigha LN, Tanyileke G, Hell JV (2013)
    Depth of melt segregation below the Nyos maar-diatreme volcano (Cameroon, West Africa): Major-trace element evidence and their bearing on the origin of CO2 in Lake Nyos.
    IAVCEI 2013 Scientific Assembly – July 20 – 24; Kagoshima, Japan. Abstract No. 1A_3B-O2
  • Aka FT, Yokoyama T, Kusakabe M, Nakamura E, Tanyileke G, Ateba B, Ngako V, Nnange JM, Hell JV (2008)
    Measuring U-Th-Ra disequilibria and major/trace elements in basalts from Lake Nyos maar, Cameroon (West Africa): What does it tell us about the age of Lake Nyos dam and associated hazards?
    3rd AASPP Seminar, Misasa Western Japan. March 21-23. Abstract volume p201-204.
  • Aka FT, Yokoyama T, Kusakabe M, Nakamura E (2006)
    Cosmogenic helium and neon in mantle xenoliths from the Cameroon Volcanic Line (West Africa): preliminary observations.
    Extended Abstract of 2nd International AASPP Seminar in Dar es Salaam Tanzania, 17 – 18 December. Abstract volume p67-73
  • Asaah ANE, Yokoyama T, Aka FT, Kuritani T, Wirmvem MJ, Iwamori H (2016)
    Geochemistry of lavas from maar-bearing volcanoes in the Oku Volcanic Group of the Cameroon Volcanic Line.
    Abstract volume of IAVCEI Commission on Volcanic Lakes - CVL-9 Cameroon, 14-24 March 2016 ‘30 years after the Lake Nyos disaster’. Abstract T1.2
  • Assaha ANE, Yokoyama T, Aka FT, Usui T, Wirmvem MJ, Chako Tchamabe B, Ohba T, Tanyileke G, Hell JV (2013)
    Regional extent of magmatic CO2 in crater lakes of the Oku Volcanic Group: constraints from petrogenesis and relation with tectonic events.
    8th Workshop of the IAVCEI Commission on Volcanic Lakes (CVL-8) 25 to 31 July 2013, Aso Volcano and Hokkaido, Japan
  • Chako Tchamabe B, Ohba T, Issa , Youmen D, Owona S, Aka F T, Tanyileke G, Hell JV (2013)
    Eruptive history of the Barombi mbo maar, southwest Cameroon, Central Africa: constraints from tephrostratigraphic analyses of phreatomagmatic deposits.
    IAVCEI 2013 Scientific Assembly – July 20 – 24; Kagoshima, Japan. Abstract No. 3P1_3F-O19 pp13
  • Hasegawa T, Miyabuchi Y, Kobayashi T, Aka FT, Kankeu B, Issa, Nche LA, Fils S, Kaneko K, Ohba T, Kusakabe M, Tanyileke G, Hell JV (2016)
    Eruption history of Nyos volcano, northwestern Cameroon.
    Abstract volume of IAVCEI Commission on Volcanic Lakes - CVL-9 Cameroon, 14-24 March 2016 ’30 years after the Lake Nyos disaster. Abstract T1.3 pp14
  • Miyabuchi Y, Kobayashi T, Hasegawa T, Kaneko K, Aka FT, Ohba T, Kusakabe M, Tanyileke G, Hell JV (2014)
    Asia Oceania Geosciences Society Meeting, 28 July – 1 August 2014, Sapporo Japan.
    Abstract No. ID25-A007
  • Tietchou I, Aka FT, Grégoire M (2006)
    Upper mantle homogeneities beneath the Kumba plain (Cameroon Line) from the study of Peridotite xenoliths. Extended Abstract of 2nd International AASPP Seminar in Dar es Salaam Tanzania, 17 – 18 December.
    Abstract volume p12-14
  • Yokoyama T, Aka FT, Kusakabe M, Nakamura E (2006)
    U-series and Sr-Nd-Pb isotopic studies of lavas erupted from 1909 to 2000 on Mt. Cameroon volcano (West Africa).
    EOS transactions, American Geophysical Union abstract V21A-0566
  • Technical reports

  • (To add)

    Hydrology and hydrogeology

    Articles in peer review journals

  • Aka FT, Kusakabe M, Nagao K, Tanyileke G (2001)
    Noble gas isotopic compositions and water/gas chemistry of soda springs from the islands of Bioko, São Tomé and Annobon, along the Cameroon Volcanic Line, West Africa.
    Applied Geochemistry 16: 323-338
  • Ako AA, Shimada J, Hosono T, Kagabu M, Akoachere R, Nkeng GE, Aka FT, Ono M, Eyong Takem GE, Ketchemen BT, Mouncherou OF (2013)
    Flow dynamics and age of groundwater within a humid equatorial active volcano (Mount Cameroon) deduced by δD, δ18O, 3He and chlorofluorocarbons (CFCs)
    Journal of Hydrology 502: 156-176
  • Eneke GT, Kuitcha D, Ako AA, Mafany GT, Takounjou-Fouepe A, Ndjama J, Ntchancho R., Ateba BH, Chandrasekharam D, Ayonghe SN. (2015)
    Acidification of shallow groundwater in the unconfined sandy aquifer of the city of Douala, Cameroon, Western Africa: implications for groundwater quality and use.
    Journal of Environmental Earth Sciences. DOI 10.1007/s12665-015-4681-3
  • Fantong WY, Kamtchueng BT, Yamaguchi K, Ueda A, Issa, Ntchantcho R, Wirmvem MJ, Kusakabe M, Ohba T, Zhang J, Aka FT, Tanyileke G, Hell JV (2014)
    Characteristics of Chemical weathering and water-rock interaction in Lake Nyos dam (Cameroon): Implications for vulnerability to failure and re-enforcement.
    Journal of African Earth Sciences 101: 42-55.
  • Fantong WY, Kamtchueng BT, Ketchemen-Tandia B, Kuitcha D, Ndjama J, Fouepe AT, Takem G E, Issaa, Wirmvem MJ, Bopda Djomou SL, Ako AA, Nkeng GE, Kusakabe M, Ohba T (2016).
    Variation of hydrogeochemical characteristics of water in surface flows, shallow wells, and boreholes in the coastal city of Douala (Cameroon).
    Hydrological Sciences Journal, DOI:10.1080/02626667.2016.1173789,
  • Fantong WY, Fouépé AT, Issa, Djomou SLB, Banseka HS, Anazawa K, Adelana SMA, Wirmvem MJ, Aka FT, Ohba T, Hell JV, Nkeng G E (2013)
    Temporal pollution by nitrate (NO3), and discharge of springs in shallow crystalline aquifers: Case of Akok Ndoue catchment, Yaoundé (Cameroon) Afr.
    J. Environ. Sci. Technol. 7(5): 175-191
  • Fantong WY, Satake H, Aka FT, Ayonghe SN, Asai K, Mandal AK, Ako AA (2009)
    Hydrochemical and isotopic evidence of recharge, apparent age and flow direction of groundwater in Mayo Tsanaga River Basin, Cameroon: Bearings on contamination.
    Environmental Earth Science doi: 10.1007/s12665-009-0173-7
  • Fantong WY, Satake H, Ayonghe SN, Aka FT, Asai K (2009)
    Hydrogeochemical controls and usability of groundwater in the semi-arid Mayo Tsanaga River Basin: far north province, Cameroon.
    Environmental Geology 58: 1281-1293
  • Kamtchueng BT, Fantong WY, Ueda A, Tiodjio ER, Anazawa K, Wirmvem MJ, Mvondo JO, Nkamdjou SL, Kusakabe M, Ohba T, Tanyileke G, Hell JV (2014)
    Assessment of shallow groundwater in Lake Nyos catchment (Cameroon, Central-Africa): implications for hydrogeochemical controls and uses.
    Environmental Earth Science 72: 3663-3678 DOI 10.1007/s12665-014-3278-6
  • Kamtchueng BT, Fantong WY, Wirmvem MJ, Tiodjio ER, Takounjou AF, Djomou SLB, Asai, K, Kusakabe M, Ohba T, Tanyileke G, Hell JV, Ueda A (2015).
    A multi-tracer approach for assessing the origin, apparent age and recharge mechanism of shallow groundwater in the Lake Nyos catchment, Northwest, Cameroon.
    Journal of Hydrology DOI 10.1016/j.jhydrol.2015.02.008.
  • Kamtchueng BT, Onana VL, Fantong WY, Ueda A, Ntouala RFD, Wongolo MHD, Ndongo, GB, Ngo’o Ze A, Kamgang VKB, Ondoa JM (2015).
    Geotechnical, chemical and mineralogical evaluation of lateritic soils in humid tropical area (Mfou, Central-Cameroon): Implications for road construction.
    International Journal of Geo-Engineering, 6(1): 1-21 doi: 10.1186/s40703-014-0001-0.
  • Kamtchueng BT, Fantong WY, Wirmvem MJ, Tiodjio ER, Takounjou AF, Ndam JR, Kusakabe M, Zhang J, Ohba T, Tanyileke G, Hell JV, Ueda A (2016)
    Hydrogeochemistry of surface- and groundwater in the vicinity of Lake Monoun, West Cameroon: Approach from multivariate statistical analysis and stable isotopic characterization.
    Environ Monit Assess 188: 524 DOI 10.1007/s10661-016-5514-x
  • Namio FT, Ngondiep E, Ntchantcho R, Ntonga J C (2015).
    Mathematical model of complete shallow water problem with source terms, stability analysis of Lax-Wendroff Scheme.
    J Theor Comput Sci 2:4.
  • Ndjama J, Ako AA, Kuitcha D, Tita AM, Fantong W, Mafany G, Takem EG, Fopouo MCY, Kamgang KBV (2014).
    Ecohydrology of surface and underground water of the Mgoua Drainage Basin in Douala (Cameroon).
    International Journal of Research in Chemistry and Environment. ISSN 2248-9649
  • Tiodjio R, Sakatoku A, Nakamura A, Tanaka D, Fantong WY, Kamtchueng BT, Tanyileke G, Ohba T, Hell JV, Kusakabe M, Nakamura S, Ueda A (2014)
    Bacterial and archaeal communities in Lake Nyos (Cameroon, Central Africa).
    Scientific Reports 4: 6151: DOI: 10.1038/srep06151
  • Tiodjio RE, Fantong WY, Kamtchueng BT, Tanyileke G, Ohba T, Hell JV, Kusakabe M, Nakamura S, Ueda A (2015)
    Bacteriological assessment of drinking water sources in the vicinities of Lakes Nyos and Monoun (Cameroon, Central Africa).
    Environmental Science and Water Resources 4 (3): 60-70
  • Tiodjio RE, Sakatoku A, Issa, Fantong WY, Kamtchueng BT, Tanyileke G, Hell VJ, Ohba T, Kusakabe M, Tanaka D, Nakamura S, Ueda A (2016).
    Tiodjio RE, Sakatoku A, Issa, Fantong WY, Kamtchueng BT, Tanyileke G, Hell VJ, Ohba T, Kusakabe M, Tanaka D, Nakamura S, Ueda A (2016).
    . Limnologica 60: 6–19
  • Takahiro H, Ako AA, Akoachere AR, Ide K (2015).
    Visit to valuable water springs (108) around Mt. Cameroon.
    The Journal of the Japanese Association of Groundwater Hydrology 57(1): 93-107. DOI: 10.5917/jagh.57.93.
  • Wirmvem MJ, Fantong WY, Wotany ER, Ohba T, Ayonghe SN (2013).
    Sources of bacteriological contamination of shallow groundwater and health effects in the Ndop plain, North West Cameroon.
    J. Environ. Sci. Water Resourc. 2 (4): 127-132
  • Wirmvem MJ, Ohba T, Fantong WY, Ayonghe SN, Suila JY, Asaah ANE, Tanyileke G, Hell JV (2013).
    Hydrochemistry of shallow groundwater and surface water in the Ndop plain, North West Cameroon. Afr.
    J. Environ. Sci. Technol. 7 (6): 518-530
  • Wirmvem MJ, Ohba T, Fantong WY, Ayonghe SN, Hogarh JN, Suila JY, Asaah ANE, Tanyileke G, Hell JV (2014)
    Origin of major ions in monthly rainfall events at the Bamenda Highlands, North West Cameroon.
    Journal of Environmental Sciences 26: 801-809
  • Wirmvem MJ, Ohba T, Suila JY, Fantong WY, Bate NO, Seigo O, Wotany ER, Asaah ANE, Ayonghe SN, Tanyileke G, Hell JV (2014)
    Hydrochemical and isotopic characteristics of groundwater in the Ndop plain, North West Cameroon: Resilience to seasonal climatic changes.
    Environmental Earth Sciences, DOI: 10.1007/s12665-014-3265-y,
  • Wirmvem M J, Ohba T, Fantong WY, Ayonghe SN, Suila JY, Asaah ANE, Asai K., Tanyileke G, Hell JV (2013).
    Monthly oxygen-18, deuterium and chloride characteristics of precipitation in the Ndop plain, North West Cameroon: Baseline data.
    Quaternary International DOI: http://dx.doi.org/10.1016/j.quaint.2013.07.009.
  • Wirmvem MJ, Mimba ME, Kamtchueng BT, Wotany ER, Bafon TG, Asaah ANE, Fantong, FY, Ayonghe SN, Ohba T (2015)
    Shallow groundwater recharge mechanism and apparent age in the Ndop plain, northwest Cameroon. Applied Water Sci.
    DOI 10.1007/s13201-015-0268-0, accepted
  • Wirmvem MJ, Ohba T, Nche LA, Kamtchueng BT, Wiylahnyuy EK, Mimba ME , Bafon TBG, Yaguchi M, Takem G E, Fantong WY., Ako AA (2017).
    Effect of diffuse recharge and wastewater on groundwater contamination in Douala, Cameroon.
    Environ Earth Sci (2017) 76:354. DOI 10.1007/s12665-017-6692-8
  • Published Abstracts (including posters)

  • Djomou BSL, Tanyileke G, Aka FT, Ohba T, Kling G, Fantong WY, Kusakabe M, Evans W, Yoshida Y, Issa, Hell JV (2014).
    Preliminary results from the Lakes Monoun and Nyos climate stations.
    11th Annual Meeting Asia Oceania Geosciences Society (AOGS), 28 July to 01 August, 2014, Sapporo-Japon
  • Issa, Ohba T, Fantong W Y, Eleazar P, Aka FT, Ooki S, Yoshida Y, Pedro H, Kuitcha D, Fouepe A, Kusakabe M, Chako TB, Sighomnou D, Tanyileke G, Sigha NL (2014).
    Geochemistry of Soil Gas from Mount Manenguba Cadera, Cameroon Volcanic Line (CVL).
    11th Annual Meeting Asia Oceania Geosciences Society (AOGS), 28 July to 01 August, 2014, Sapporo-Japon
  • Issa, Yoshida Y, Kuitcha D, Ohba T, Fantong W, Padron E, Fouepe A, Kusakabe M, Ooki S, Chako TB, Sighomnoun D, Sigha Nkamdjou, Tanyileke G (2014)
    A laboratory-free method to measure dissolved CH4 in gassy lakes.
    Goldschmidt2014 http://goldschmidt.info/2014/, 8th-18th June, Sacramento, USA
  • Issa, Ohba T, Aka FT, Fantong YW, Gbetnkom MA, Yoshida Y, Kusakabe M, Chako Tchamabe B, Sighomnou D, Sigha N, Tanyileke G, Hell JV (2013)
    Diffuse CO2 emission from certain lakes located on the Cameroon Volcanic Line (CVL): a contribution to global carbon budget and CO2-related hazard assessment in Cameroon.
    8th Workshop of the IAVCEI Commission on Volcanic Lakes (CVL-8) 25 to 31 July 2013, Aso Volcano and Hokkaido, Japan
  • Kamtchueng TB et al. (2012)
    Stable isotope study of groundwater around lake Nyos (North-west Cameroon); 59th Annual Meeting of the Geochemical Society of Japan.
    September 11-13th, Fukuoka, Japan.
  • Kamtchueng TB (2012)
    Environmental isotopes and hydrological studies of groundwater around Lake Nyos (North-western Cameroon); Graduate School meeting, University of Toyama and Nagoya University.
    November 13-14th, Toyama, Kurobe, Japan,
  • Kamtchueng BT et al (2013).
    Hydrochemical processes and environmental isotope study of groundwater around Lake Nyos (North-western Cameroon)
    IAVCEI General Assembly 20 - 24th July, Kagoshima, Japan.
  • Kamtchueng BT et al (2013).
    Hydrogeochemistry and groundwater quality in Nyos area about three decade after the CO2 gas burst (North-western Cameroon)
    IAVCEI- Commission of Volcanic Lakes, 8th Workshop on Volcanic Lakes (2013), July 25th -31st, Aso volcano and Hokkaido Island, Japan.
  • Kamtchueng BT et al (2013)
    Hydrogeochemistry and groundwater quality in Nyos area about three decade after the CO2 gas burst (North-western Cameroon).
    SATREPS - Volcanic Lakes Symposium, Hiratsuka Japan. 18 - 20th September, 2013.
  • Kamtchueng BT et al (2014)
    A multi-tracer approach for assessing the origin, seasonal variation, apparent age and recharge mechanism of shallow groundwater in the Lake Nyos catchment, Northwest-Cameroon
    SATREPS - Volcanic Lakes Symposium, Tokyo, Japan. 20 - 21th October, 2014
  • Kamtchueng BT et al (2015)
    Isotope hydrogeochemistry of groundwater in the lake nyos catchment (northwest cameroon)
    International Symposium on Isotope Hydrology: Revisiting Foundations and Exploring Frontiers, Vienna, Austria. 11 – 15 May 2015.
  • Kamtchueng BT et al (2016).
    Surface and ground waters chemistry, isotope hydrology and hydrological processes within a fractured volcanic aquifers: case of lakes Nyos and Monoun, west Cameroon
    IAVCEI COMMISSION ON VOLCANIC LAKES CVL9-Cameroon, “30 years after the Lake Nyos disaster”, Yaounde- Cameroon, 14-24 March 2016.
  • Kamtchueng BT al (2016).
    Taming Lakes Nyos and Monoun through best of monitoring & engineering practices, International Volcano Observatory Best Practices workshop
    Vancouver, Washington, November 15-18, 2016.
  • Ohba T, Issa , Kusakabe M, Yoshida Y, Ueda A, Anazawa K, Saiki K, Kaneko K, Miyabuchi Y, Aka FT, Fantong WY, Tanyileke G, Hell V (2014)
    Temporal variation (2011 – 2013) of the amount of CO2 dissolved in Lakes Nyos and Monoun, Cameroon.
    Asia Oceania Geosciences Society Meeting, 28 July – 1 August 2014, Sapporo Japan. Abstract No. ID25-A003
  • Ohba T, Sasaki Y, Kusakabe M, Yoshida Y, Ueda A, Anazawa K, Kaneko K, Miyabuchi Y, Issa, Aka FT, Fantong YW, Tanyileke G, Hell JV (2013)
    Chemical structure of Lakes Nyos and Monoun, Cameroon.
    IAVCEI 2013 Scientific Assembly – July 20 – 24; Kagoshima, Japan. Abstract No. 4A1_3I-O3
  • Ohba T, Sasaki Y, Kusakabe M, Yoshida Y, Ueda A, Anazawa K, Saiki K, Kaneko K, Miyabuchi Y, Issa, Aka FT, Fantong YW, Tanyileke G, Sigha NL, Hell JV (2013)
    New findings at Lake Monoun in 2013 by the cooperative research project between Japan and Cameroon under ‘SATREPS’ program.
    8th Workshop of the IAVCEI Commission on Volcanic Lakes (CVL-8) 25 to 31 July 2013, Aso Volcano and Hokkaido, Japan
  • Technical reports

  • Djomou BSL, Abdoul KD, Tanyileke G. (2014)
    Les grands pas du projet SATREPS-IRGM
    Sciences & Dévéloppement 11, 45-46
  • Fouepe A, Ako A A, Tanyilike G (2014).
    Magmatic fluid supply into Lakes Nyos and Monoun, and mitigation of natural disasters through capacity building in Cameroon. 2nd activity report
    March 2013 to March 2014. Report to JCC members. 44 pages. March 2014

    Energy

    Environnent and Natural disasters

    Articles in peer review journals

  • Abdourahimi, Saïdou, Fantong WY, Aka FT, Kwato NMG (2016)
    Environmental pollution by metals in the oil-bearing Bakassi peninsula, Cameroon.
    Carpathian J. Earth Environ Sciences, 11(2): 529 – 538
  • Aka FT, Buh GW, Fantong WY, Issa, Zouh TI, Djomou Bopda SL, Ghogumo R, Gibson T, Marmol MA, Sigha NL, Ohba T, Kusakabe M, Yoshida Y, Tanyileke G, Nnange JM, Hell JV (2016).
    Disaster prevention, disaster preparedness and local community resilience within the context of disaster risk management in Cameroon.
    Natural Hazards doi 10.1007/s11069-016-2674-5
  • Aka FT (2015)
    Depth of melt segregation below the Nyos maar-diatreme volcano (Cameroon, West Africa): Major-trace element evidence and their bearing on the origin of CO2 in Lake Nyos.
    In: Rouwet D, Christenson BW, Tassi F, Vandemeulebrouck J (eds) Volcanic Lakes, Springer-Heidelberg, IAVCEI Series of Advances in Volcanology
  • Aka FT, Yokoyama T (2013)
    Current status of the debate about the age of Lake Nyos dam (Cameroon) and its bearing on potential flood hazards.
    Natural Hazards 65: 875-885
  • Aka FT, Yokoyama T, Kusakabe M, Nakamura E, Tanyileke G, Ateba B, Ngako V, Nnange J, Hell JV (2008)
    U-series dating of Lake Nyos maar basalts, Cameroon (West Africa): Implications for potential hazards on the Lake Nyos dam.
    Journal of Volcanology and Geothermal Research 176(2), 212-224
  • Ateba B, Dorath C, Dorbath L, Ntepe N, Frogneux M, Aka FT, Hell JV Delmond, JC, Manguelle D (2009)
    Eruptive and earthquake activities related to the 2000 eruption of Mount Cameroon volcano (West Africa)
    Journal of Volcanology and Geothermal Research 179: 206-216
  • Buh GW, Aka FT, Burnley C, Isabella ZT (2012)
    Local governance in disaster risk reduction in Cameroon.
    Jamba Journal of Disaster Risk Studies 4(1) doi.org/10.4102/jamba.v4i1.56
  • Fouépé TA, Kuitcha D, Fantong WY, Ewodo MG, Haris KH, Issa, Ohba T (2013).
    Assessing groundwater nitrate pollution in Yaoundé, Cameroon: Modelling Approach.
    World Applied Sciences Journal 23 (3): 333-344 DOI: 10.5829/idosi.wasj.2013.23.03.321
  • Issa, Fantong WY, Aka FT, Ohba T, Chako TB, Rouwet D, Yoshida Y, Mouliom GBA., Sighomnoun D, Sigha NL, Kusakabe M, Tanyileke G, Hell JV (2014)
    δ18O and δD variation in some volcanic lakes along the Cameroon Volcanic Line (West-Africa): Generating an isotopic baseline data for volcanoes monitoring/surveillance in Cameroon.
    J. Limnol. Doi:10.4081/jlimnol.2014.966
  • Issa (2014).
    Geochemical Characterization of Volcanic Lakes: Implications for Volcanic Hazards Monitoring and Surveillance along the Cameroon Volcanic Line (CVL).
    These de doctorat PhD, Université de Tokai
  • Issa, Ohba T, Chako TB, Padrón E, Hernández P, Eneke Takem E.G., Barrancos J., Sighomnoun D., Ooki S., Sigha Nkamdjou, Kusakabe M., Yoshida Y. (2014).
    Gas emission from some Diffuse Diffusion Structures (DDSs) of the Cameroon Volcanic Line (CVL): Implication for the prevention of CO2 related hazards.
    Journal of Volcanology and Geothermal Research DOI: 10.1016/j.jvolgeores.2014.07.001
  • Issa, Ohba T., Fantong W.Y., Fouepe A., Chako T. B., Yoshida Y., Kusakabe M., Sigha Nkamdjou, Tsunogai Urumu, Oginuma Yu, Tanyileke G., Satake Hiroshi and Hell J. V. (2013).
    Contribution of Methane to Total Gas Pressure in Deep Waters at lakes Nyos and Monoun (Cameroon, West Africa)
    Geochem. J. 47, 349-362
  • Ohba T, Ooki S, Oginuma Y, Kusakabe M, Yoshida Y, Ueda A, Anazawa K, Saiki K, Kaneko K, Miyabuchi Y, Issa, Aka FT, Fantong WY, Ako AA, Tanyileke G, Hell JV (2015)
    Decreasing removal rate of the dissolved CO2 in Lake Nyos, Cameroon, after the installation of additional degassing pipes. In: Ohba T, Capacciono B, Caudron C (eds) Geochemistry of Active Volcanic Lakes.
    Geological Society of London Special Publication 437 doi.org/10.1144/SP437.6
  • Kusakabe M (2017)
    Lakes Nyos and Monoun gas disasters (Cameroon) – Limnic eruptions caused by excessive accumulation of magmatic CO2 in crater lakes.
    Geochemistry Monogr Series 1(1): 1-50
  • Ntepe N, Aka FT, Ubangoh RU, Ateba B, Nnange JM, Hell JV (2004)
    The July 2002 earthquake in the Kribi region: geological context and a preliminary evaluation of seismic risk in southwestern Cameroon.
    Journal of African Earth Sciences 40 : 163-172
  • Published Abstracts (including posters)

  • Aka FT, Buh WG, Issa, Fantong WY., Ohba T., Kusakabe M, Tanyileke G, Hell JV (2014).
    Preventing limnic eruptions in Lakes Nyos and Monoun within the framework of disaster governance, resilience and preparedness in Cameroon.
    11th Annual Meeting Asia Oceania Geosciences Society (AOGS), 28 July to 01 August, 2014, Sapporo-Japon)
  • Aka FT, Kengne C, Fujita A, Ndoko LR, Kusakabe M, Fantong WY, Tchakoute M, Eyong JT, Tchakam B, Tanyileke G, Ohba T, Hell JV (2016)
    Workshop to enhance the awareness of Nyos and Monoun communities on disaster risks.
    Abstract volume of IAVCEI Commission on Volcanic Lakes - CVL-9 Cameroon, 14-24 March 2016 ’30 years after the Lake Nyos disaster. Abstract T5.1 pp 40
  • Ateba B, Ubangoh U, Ntepe N, Aka FT (2001)
    Late June non-volcanic floods and landslides take ten’s of lives; 1000 homeless.
    Bulletin of Global Volcanism (SEAN) 11, 12-13
  • Fouepe A, Ako A Ako and Tanyilike G (2014)
    Magmatic fluid supply into Lakes Nyos and Monoun, and mitigation of natural disasters through capacity building in Cameroon.
    2nd activity report - March 2013 to March 2014. Report to JCC members. 44 pages. March 2014
  • Mary-Ann del Marmol, Atanga, MBS, Fontijn K, Kervyn M, Njome MS, Aka FT, Mafany G, Tening A, Fonge B, Bih VC, Wantim MN, Ernst G (2012)
    Reducing multiple risks by integrated social actions in the Mount Cameroon Area.
    Cities on volcanoes 7, Colima 19 – 23 November
  • Tanyileke G, Nchantchou R, Fantong WY, Aka FT, Hell JV (2016)
    Lake Nyos dam reinforced.
    . Abstract volume of IAVCEI Commission on Volcanic Lakes - CVL-9 Cameroon, 14-24 March 2016 ‘30 years after the Lake Nyos disaster’. Poster P5.4 pp7
  • Technical reports

  • Aka FT (2001 March)
    Nyos-Monoun Degassing Project (NMDP).
    Mission Report on the installation of a permanent degassing pipe at Lake Nyos. 38pp
  • Aka FT, Kankeu B, Ntchantcho R (2012 August)
    Eboulement de terrain du 1er Aout 2012 survenu dans le village Tinta au quartier Kakpenyi, Arrondissement d’Akwaya, Département de la Manyu, Région de Sud-ouest.
    Investigation de l’équipe scientifique de l’IRGM. Rapport préliminaire. 15pp
  • Aka FT (2016)
    The rock avalanche of 12 July 2016 in Gombo village, Poli Sub Division, Faro Division of North Region of Cameroon
    October 2016, 19p
  • Aka F, Kankeu B, Ntchantcho R. Kakpeny (Akwaya)
    landslide, South-West Cameroon.
    August 2012
  • Aka FT, Penaye J, Bassahak J, Fantong WY, Kankeu B (2016 March)
    9th International Conference on Volcanic lakes (CVL9).
    Lakes Nyos and Monoun gas disasters 30 years after, Yaoundé (Cameroon) 14 to 23 March 2016. Fieldtrip booklet, 28pp
  • Aka FT, Kengne C, Fujita A (2015 Oct
    Nyos and Monoun Community Enhancement for Disaster Risk Awareness Disaster Risk Awareness.
    Workshops in Nyos and Monoun areas. Workshop planning Mission to Menchum and Noun Divisions - 27 September to 3 October 2015. 23pp
  • Aka FT (2015 Aug)
    Training Course on Community-Based Disaster Risk Management
    Kobe, Japan, 23 June – 01 August 2015. 58pp
  • Aka FT (2014 Aug)
    Report of a scientific mission to Japan 25 July to 11 August 2014.
    11th Annual meeting of Asia Oceania Geosciences Society Meeting. 15pp
  • Aka FT, Tanyilike G, Sigha LN (2013 August)
    Report of a scientific mission to Japan, 16 July to 10 August 2013 to participate in the 2013 IAVCEI and CVL-8 meetings.
    32pp
  • Aka FT, Kankeu B, Ntchantcho R (2012 August)
    Eboulement de terrain du 1er Aout 2012 survenu dans le village Tinta au quartier Kakpenyi, Arrondissement d’Akwaya, Département de la Manyu, Région de Sud-ouest. Investigation de l’équipe scientifique de l’IRGM.
    Rapport préliminaire. 15pp
  • Aka FT (2012 March)
    Magmatic fluid supply into Lakes Nyos and Monoun, and mitigation of natural disasters through capacity building in Cameroon.
    Report of first Joint Coordinating Committee (JCC) Meeting, Yaoundé, 19 March 2012. 18pp
  • Aka FT (2012 Sept)
    Reinforcement of Lake Nyos natural dam
    Report of the 6th work evaluation meeting; 25 – 28 September 2012. 12pp
  • Aka FT, Kusakabe M, Fantong WY, Miyabuchi Y, Yoshida Y, Issa, Ueda A, Anazawa K, Kaneko K (2011 Jan).
    Fieldtrip to Lakes Nyos and Monoun 12 to 19 January 2011
    21pp
  • Aka FT (2007 March)
    Report of the 2nd International Asia-African Science Platform Program (AASPP) seminar in Tanzania - December 17 – 18, 2006.
    274ppNtchantcho R. Numerical simulation for limnic eruption work session. December 2014
  • Aka FT, Ubangoh R, Ntepe N, Ateba B (2001 July)
    June 2001 catastrophic landslides and floods in Limbe, Southwest Province.
    21pp
  • Fantong WY, Fouepe A, Aka FT, Tanyileke G (2013 March)
    Magmatic fluid supply into Lakes Nyos and Monoun, and mitigation of natural disasters through capacity building in Cameroon.
    2nd activity report - March 2012 to March 2013. 79pp
  • Ntepe N, Aka FT, Ubangoh RU, Ateba B, Nnange JN, Hell JV (2002 June)
    The felt earthquake of July 2002 in the region of Kribi: Its geological context and a preliminary evaluation of seismic risk in southwestern Cameroon.
    11pp
  • Ntchantcho R, Chameni C, Tjombe J.
    Mastering the degassing system in Lake Nyos.
    June 2013
  • Ntchantcho R, Mbolla SP. Nkondjock
    landslide, Cameroon.
    Octobre 2012
  • Ntchantcho R.
    Measurements in the Lakes Nyos and Monoun, and evolution of the double diffusion.
    July 2007
  • Ntchantcho R.
    Propositions for the follow up of degassing pipes in Lakes Nyos and Monoun.
    May 2006
  • Mvogo M, Lekunze R, Mbara M, Tsala MN, Mahamadou MM, Aka FT, Pagou MM (juin 2016)
    Mission interministérielle d’investigation sur la dangerosité de certains lacs de cratère dans la région de l’Adamaoua, Cameroun, du 05 au 12 juin 2016.
    6pp
  • Penaye J, Bea A, Aka FT (2001 June)
    Projet de Cartographie Geologique du Cameroun, Rapport préliminaire de Mission Année 2001, Feuille Ngog Mapubi a 1/50,000.
    12pp
  • Tanyileke G, Ntchantcho R.
    Follow up of natural heat generation in Makok.
    June 2008
  • Tanyileke G, Ntchantcho R.
    Finalising the degassing in Lake Monoun.
    April 2008
  • Tanyileke G, Ntchantcho R.
    Follow up of the scientific installation and trouble shouting of the pipes in Lake Monoun.
    April 2006
  • Tanyileke G, Ntchantcho R.
    Degassing Lakes Nyos and Monoun: Implantation of two supplementary pipes at Monoun.
    February 2006.
  • Saiki K, Kaneko K, Ntchantcho R, Fouepe A.
    Mission report of “CO2 supply-system-study team” on survey at Lakes Nyos and Monoun in March 2015.
    March 2015

    Remote sensing and GIS