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33. THE DYNAMICS OF AFRICA AND SOUTH-AMERICAN PLATE BOUNDARYFROM PAST SEISMIC EVENTS. by D. Abdullahi, M. Saleh, A.A. Bunawa and N.M. Nagoda Volume 51 (May, 2019 Issue)
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THE DYNAMICS OF AFRICA AND SOUTH-AMERICAN PLATE BOUNDARYFROM PAST SEISMIC EVENTS.

D. Abdullahi, M. Saleh, A.A. Bunawa and N.M. Nagoda

Department of Physics, School of Secondary Education (Sciences) Federal College of Education Kano.

Department of Physics, College of Pharmaceutical and Natural Sciences, Faculty of Physical Sciences, Bayero University Kano.

Uthman Bin Affan Islamic Trust, Gadon Kaya Kano.

Abstract

This paper titled, “The dynamics of African and south-American plate boundary,” discusses on plate tectonics and the type of boundary between Africa and South-American plate. A quantitative analysis was carried out with Surfer 13, Coordinate-UTM converter 1.0 and Microsoft excel 2007 softwares in determining the seismodynamics of the plates. The study covered the African plate and its boundary with South American plate and utilizes the secondary earthquake data of past events from the year 1990 to 2017. The study showed that Africa and South American plates are diverging with resultant relative motion of 17.73mm/yr at an angle of 50.520 due west from the year 1990 to 2000. The resultant relative motion decreases from 17.73mm/yr to 13.40mm/yr at an angle of 36.940 due west from the year 2000 to 2010. The research findings have shown that the current resultant relative divergence of the South American plate from the African plate has increased to 20.68mm/yr at an angle of 36.460 due west and the average relative motion over 30 years is 17.27mm/yr. The paper was related with previous work followed by discussions which could serve as a guide for further work.

Keywords: Africa, Dynamics, Plates, Relative, Velocity, Seismic and Tectonics

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