Changes

Jump to navigation Jump to search
2 bytes removed ,  14:15, 14 May 2015
Line 15: Line 15:  
For many years it was widely accepted that rifting in the [[East African Rift]] system, 22-25 million years ago, resulted in the splitting of the African Plate into 2 smaller plates - the Somali Plate and the Nubian Plate.<ref name=Ebinger>Ebinger, C. J., 2005, Continental break-up: the East African perspective: Astro. Geophys, vol. 46, issue 2.</ref> However, most recently, through the application of GPS technology and integration of earthquake data, it was discovered that the rift created three additional “micro-plates” plates - the Lwandle Plate, [[Victoria Plate]], and [[Romuva Plate]].<ref name=Saria />
 
For many years it was widely accepted that rifting in the [[East African Rift]] system, 22-25 million years ago, resulted in the splitting of the African Plate into 2 smaller plates - the Somali Plate and the Nubian Plate.<ref name=Ebinger>Ebinger, C. J., 2005, Continental break-up: the East African perspective: Astro. Geophys, vol. 46, issue 2.</ref> However, most recently, through the application of GPS technology and integration of earthquake data, it was discovered that the rift created three additional “micro-plates” plates - the Lwandle Plate, [[Victoria Plate]], and [[Romuva Plate]].<ref name=Saria />
   −
[[Earthquake]]s occur most often at plate boundaries and have been used as a guide to predict the locations of multiple plate boundaries.<ref name=Calaisetal2006a>Calais, E., C. J. Ebinger, C. Hartnady, J. M. Nocquet, 2006, Kinematics of the East African Rift from GPS and earthquake slip vector data, in G. Yirgu, C. J. Ebinger, and P. K. H. Maguire, eds., The Afar Volcanic Province Within the East African Rift System: London, Geological Society Special Publication 259. pp. 9–22.</ref><ref name=Kelleheretal>Kelleher, J., L. Sykes, and J. Oliver, 1973, Possible criteria for predicting earthquake locations and their application to major plate boundaries of the Pacific and the Caribbean: Journal of Geophysical Research, vol. 78, issue 14, pp. 2547–2585. doi:10.1029/JB078i014p02547</ref> “Lwandle’s” existence was postulated after studying earthquake data in areas that were once assumed to be the interiors of the Nubian and Somali plates.<ref name=Hartnady>Hartnady, C. J. H., 2002, Earthquake hazard in Africa: perspectives on the Nubia-Somalia boundary: news and view: South African Journal of Science, vol. 98, issues 9 & 10: pp. 425–428.</ref> By including the Lwandlean Plate in their calculation, researchers were able to more accurately solve for the intersection between the East African Rift and the Southwest Indian Ridge.  
+
[[Earthquake]]s occur most often at plate boundaries and have been used as a guide to predict the locations of multiple plate boundaries.<ref name=Calaisetal2006a>Calais, E., C. J. Ebinger, C. Hartnady, J. M. Nocquet, 2006, Kinematics of the East African Rift from GPS and earthquake slip vector data, in G. Yirgu, C. J. Ebinger, and P. K. H. Maguire, eds., The Afar Volcanic Province Within the East African Rift System: London, Geological Society Special Publication 259. pp. 9–22.</ref><ref name=Kelleheretal>Kelleher, J., L. Sykes, and J. Oliver, 1973, Possible criteria for predicting earthquake locations and their application to major plate boundaries of the Pacific and the Caribbean: Journal of Geophysical Research, vol. 78, issue 14, pp. 2547–2585. doi:10.1029/JB078i014p02547</ref> “Lwandle’s” existence was postulated after studying earthquake data in areas that were once assumed to be the interiors of the Nubian and Somali plates.<ref name=Hartnady>Hartnady, C. J. H., 2002, Earthquake hazard in Africa: perspectives on the Nubia-Somalia boundary: news and view: South African Journal of Science, vol. 98, issues 9 & 10: pp. 425–428.</ref> By including the Lwandlean Plate in their calculation, researchers were able to more accurately solve for the intersection between the East African Rift and the Southwest Indian Ridge.  
    
[[GPS]] technology and data was also introduced in an effort to show with certainty the difference between the Somali Plate and the Nubian Plate.  Using the GPS data, researchers could measure the velocity of tectonic plates from their interiors.<ref name=Nocquet&Calais>Nocquet, J.-M., and E. Calais, 2003, Crustal velocity field of western Europe from permanent GPS array solutions, 1996-2001: Geophysical Journal International, vol. 154, issue 1, pp. 72–88. doi:10.1046/j.1365-246X.2003.01935.x</ref><ref name=Altamimietal>Altamimi, Z., L. Métivier, and X. Collilieux, 2012, ITRF2008 plate motion model: Journal of Geophysical Research, vol. 117, issue B7. doi:10.1029/2011JB008930</ref><ref name=Calaisetal2006ab>Calais, E., L. Dong, M. Wang, Z. Shen, and M. Vergnolle, 2006, Continental deformation in Asia from a combined GPS solution: Geophysical Research Letters, vol. 33. doi:10.1029/2006GL028433</ref>
 
[[GPS]] technology and data was also introduced in an effort to show with certainty the difference between the Somali Plate and the Nubian Plate.  Using the GPS data, researchers could measure the velocity of tectonic plates from their interiors.<ref name=Nocquet&Calais>Nocquet, J.-M., and E. Calais, 2003, Crustal velocity field of western Europe from permanent GPS array solutions, 1996-2001: Geophysical Journal International, vol. 154, issue 1, pp. 72–88. doi:10.1046/j.1365-246X.2003.01935.x</ref><ref name=Altamimietal>Altamimi, Z., L. Métivier, and X. Collilieux, 2012, ITRF2008 plate motion model: Journal of Geophysical Research, vol. 117, issue B7. doi:10.1029/2011JB008930</ref><ref name=Calaisetal2006ab>Calais, E., L. Dong, M. Wang, Z. Shen, and M. Vergnolle, 2006, Continental deformation in Asia from a combined GPS solution: Geophysical Research Letters, vol. 33. doi:10.1029/2006GL028433</ref>

Navigation menu