Vulcanism in equatorial guinea and associated natural hazards
Main Article Content
Abstract
This paper resumes the main geological hazards associated to the active volcanism of the Cameroon Volcanic Line to which belongs the insular region of Equatorial Guines (the islands of Bioko, Annobón (Pagalú), Corisco, Elobey Grande and Elobey Chico) and the recent tectonic activity of that important geological structure is reviewed. Some of the structural and non-structural measures that should be accounted for the reduction of the volcanic vulnerability of the territory are mentioned.
Article Details
How to Cite
Molerio LeónL. (2020). Vulcanism in equatorial guinea and associated natural hazards. Cub@: Medio Ambiente Y Desarrollo, 14(26). Retrieved from https://cmad.ama.cu/index.php/cmad/article/view/193
Section
Original Article
References
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Burke, K., 2001. Origin of the Cameroon Line of volcano-capped swells. J. Geol. 109, 349-362.
Deruelle, B.; Moreau, C.; Nkoumbou, C.; Kambou, R.;Lissom, J.; Njonfang, E.; Ghogumu, R. T.; and Nono,A. (1991): The Cameroon Line: a review. In Kampunzu,A. B., and Lubala, R. T., eds. Magmatism in extension structure settings: the Phanerozoic African Plate. Berlin,Springer,: 275–327.
Fosso, J. et al., (2005): Les laves du mont Bangou: une première manifestation volcanice éocène à affinité transitionnelle, de la Ligne du Cameroun. C.R. Géoscience 337, 315-325.
Foulger, G.R. (2007): The “plate” model for the genesis of melting anomalies, in Foulger, G.R., and Jurdy, D.M., eds., Plates, plumes, and planetary processes. Geological Society of America Special Paper 430, p. 1–28, doi: 10.1130/2007.2430(01).
Lee, D. C., Halliday, A. N., Fitton, J. G. & Poli, G. (1994). Isotopic variations with distance and time in the volcanic islands of theCameroon Line—evidence for a mantle plume origin. Earth and Planetary Science Letters 123(1–4), 119–138.
Meyers, J.B. et al., 1998. Deep-imaging seismic and gravity results from offshore Cameroon Volcanic Line and speculation of African hot-lines. Tectonophysics 284, 31-63.
McKie, Helene (2009): Volcanic Activity- Lake Nyos. Stage 1 Geology A, 6:
Molerio León, L.F. (2014): Marco geológico del peligro, la vulnerabilidad y los riesgos naturales en Guinea Ecuatorial.
Moreau, C., J.-M. Regnoult, , B. Déruelle, , B. Robineau (1987): A new tectonic model for the Cameroon line, central Africa. Tectonophysics, v. 141,p. 317–334, doi: 10.1016/0040-1951(87)90206-X.
Ndougsa Mbarga, T. (2009): Cameroon Geological Setting. Cameroon Ministry of Mines, Yaoundé, 18:
Ngako, V. et al., 2006. The North-South Paleozoic to Quaternary trend of alkaline magmatism from Niger-Nigeria to Cameroon: complex interaction between hotspots and Precambrian faults. J. Afr. Earth Sci. 45, 241-256.
Njonfang, E., A. Nono, P. Kamgang, V. Ngako, F. Tchoua Mbatcam (2007): The Cameroon Line magmatism (Central Africa): A viewpoint. www.AFR-02 Cenozoic volcanism and evolution of the African lithosphere
Wilson, M. & R. Guiraud, (1992): Magmatism in western and central Africa, from Late Jurassic to Recent times. Tectonophysics 213, 203–225
Burke, K., 2001. Origin of the Cameroon Line of volcano-capped swells. J. Geol. 109, 349-362.
Deruelle, B.; Moreau, C.; Nkoumbou, C.; Kambou, R.;Lissom, J.; Njonfang, E.; Ghogumu, R. T.; and Nono,A. (1991): The Cameroon Line: a review. In Kampunzu,A. B., and Lubala, R. T., eds. Magmatism in extension structure settings: the Phanerozoic African Plate. Berlin,Springer,: 275–327.
Fosso, J. et al., (2005): Les laves du mont Bangou: une première manifestation volcanice éocène à affinité transitionnelle, de la Ligne du Cameroun. C.R. Géoscience 337, 315-325.
Foulger, G.R. (2007): The “plate” model for the genesis of melting anomalies, in Foulger, G.R., and Jurdy, D.M., eds., Plates, plumes, and planetary processes. Geological Society of America Special Paper 430, p. 1–28, doi: 10.1130/2007.2430(01).
Lee, D. C., Halliday, A. N., Fitton, J. G. & Poli, G. (1994). Isotopic variations with distance and time in the volcanic islands of theCameroon Line—evidence for a mantle plume origin. Earth and Planetary Science Letters 123(1–4), 119–138.
Meyers, J.B. et al., 1998. Deep-imaging seismic and gravity results from offshore Cameroon Volcanic Line and speculation of African hot-lines. Tectonophysics 284, 31-63.
McKie, Helene (2009): Volcanic Activity- Lake Nyos. Stage 1 Geology A, 6:
Molerio León, L.F. (2014): Marco geológico del peligro, la vulnerabilidad y los riesgos naturales en Guinea Ecuatorial.
Moreau, C., J.-M. Regnoult, , B. Déruelle, , B. Robineau (1987): A new tectonic model for the Cameroon line, central Africa. Tectonophysics, v. 141,p. 317–334, doi: 10.1016/0040-1951(87)90206-X.
Ndougsa Mbarga, T. (2009): Cameroon Geological Setting. Cameroon Ministry of Mines, Yaoundé, 18:
Ngako, V. et al., 2006. The North-South Paleozoic to Quaternary trend of alkaline magmatism from Niger-Nigeria to Cameroon: complex interaction between hotspots and Precambrian faults. J. Afr. Earth Sci. 45, 241-256.
Njonfang, E., A. Nono, P. Kamgang, V. Ngako, F. Tchoua Mbatcam (2007): The Cameroon Line magmatism (Central Africa): A viewpoint. www.AFR-02 Cenozoic volcanism and evolution of the African lithosphere
Wilson, M. & R. Guiraud, (1992): Magmatism in western and central Africa, from Late Jurassic to Recent times. Tectonophysics 213, 203–225