{"id":609,"date":"2023-03-18T00:00:00","date_gmt":"2023-03-18T00:00:00","guid":{"rendered":"https:\/\/www.nextias.com\/current_affairs\/uncategorized\/18-03-2023\/the-great-rift-africas-splitting-plates\/"},"modified":"2023-03-18T00:00:00","modified_gmt":"2023-03-18T00:00:00","slug":"the-great-rift-africas-splitting-plates","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/18-03-2023\/the-great-rift-africas-splitting-plates","title":{"rendered":"The Great Rift: Africa&#8217;s Splitting Plates"},"content":{"rendered":"<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong><u>In Context<\/u><\/strong><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Scientists, in 2020, predicted a new ocean would be created as Africa gradually splits into two separate parts.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong><u>In news<\/u><\/strong><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>East African Rift:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The division of the continent is <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>connected to the East African Rift,<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> a <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>crack that stretches 56 kilometres<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> and appeared in the <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>desert of Ethiopia in 2005<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The crack has triggered the formation of a new sea.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Division of the continents:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">This geological process will <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>inevitably divide the continent<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, resulting in currently landlocked countries, such as <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Uganda and Zambia<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, obtaining their own coastlines in due time, which would take five to 10 million years according to the study.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">As the <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Somali and Nubian tectonic plates<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> continue to pull apart from each other, a smaller continent will be created from the rift, which will include present-day <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Somalia <\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">and parts of<\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong> Kenya, Ethiopia, and Tanzania<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Gulf of Aden and the Red Sea<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> will eventually <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>flood into the Afar region<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> in Ethiopia and the East African Rift Valley, <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>leading to the formation of a new ocean.<\/strong><\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/1455WlfR0mGwnDmgVY1pAGC0fzDVeN9_Hs0CDB86ES6242F6ripPqcPQotlgAXP-stdWZaVbwGIczIwogr90GbIVN61t6rtXl-imAlDf9O-BRRoCOZ3dbpRnUTpTbp_SyTdtp54OxJbtNkAdaD2Mxuk\" style=\"height:380px; width:564px\" \/><\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong><u>Consequences<\/u><\/strong><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Advantages:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">On the upside, the emergence of new coastlines will <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>unlock a myriad of opportunities <\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">for economic growth.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">These countries will have <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>access to new ports for trade<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, as well as<\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong> fishing grounds <\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">and <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>sub-sea internet infrastructure<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, which will undoubtedly transform their economic potential.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Disadvantages:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Evacuation &#038; displacement:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>necessary evacuation of people<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> and the <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>potential loss of lives<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> will be an unfortunate cost of this natural phenomenon.\u00a0<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">As the plates continue to split in the future, this phenomenon will result in the displacement of communities, settlements and various flora and fauna.<\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Africa is the most impacted region when it comes to displacement, with a larger number of countries affected than any other continent or region.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">As of 2015, more than 15 million people were internally displaced in Africa, according to the United Nations Environment Programme report on displacement and environment.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Environmental degradation:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">These changes will impact their habitats due to climate change, resulting in environmental degradation.\u00a0<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Rapid urbanisation and increased settlements will put pressure on natural resources, leading to a scarcity of water, energy and food.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Loss of biodiversity:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Furthermore, some species will disappear, while others will become endangered due to habitat changes.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Seismic activity &#038; volcanism:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">While the process of rifting may often go unnoticed, the separation of the Nubian and Somali plates can result in the formation of new faults, fissures and cracks or the reactivation of pre-existing faults, leading to seismic activity.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Additionally, the close proximity of the hot molten asthenosphere to the surface causes volcanism, further displaying the ongoing process of continental breakup.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong><u>Alternative theories of Continent formation<\/u><\/strong><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The most commonly accepted theory in place attributes<\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong> continent formation<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> to the <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>movement of tectonic plates<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Earth is uncommon among the planets and also from our moon that its <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>outer surface is divided into rigid slabs<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, which were called <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>tectonic plates<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> by Wegener in his theory.\u00a0<\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">While their surfaces exhibit <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>evidence of recent deformation<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, neither planet has a surface divided into plates.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">As the technology advanced, making it possible for<\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong> deeper exploration, <\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">the <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>theories of continental drift and seafloor spreading<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> got positive scientific data in support.<\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The two theories were merged to develop the modern plate tectonic theory.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong><u>Plate Tectonic Theory\/Plate Tectonic<\/u><\/strong><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Plate tectonic theory had its <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>beginnings in 1915 <\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">when <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Alfred Wegener proposed his theory of &#8220;continental drift.\u00a0<\/strong><\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">According to the theory, Earth has a rigid outer layer, known as the<\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong> lithosphere<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, which is typically about 100 km (60 miles) thick and overlies a plastic (moldable, partially molten) layer called the <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>asthenosphere<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">.\u00a0<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>lithosphere is broken up<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> into:<\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>seven very large<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>continental- and ocean-sized plates,<\/strong><\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>six or seven medium-sized regional plates<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, and\u00a0<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>several small plates<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">.\u00a0<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">These <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>plates move relative to each other<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">.<\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">They typically move at rates of 5 to 10 cm (2 to 4 inches) per year, and interact along their boundaries.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">They <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>converge, diverge, <\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">or <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>slip past<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> one another.\u00a0<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Mountain formation:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Plate motions cause mountains to rise where plates push together or converge.\u00a0<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Ocean formation:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:square\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Continents fracture and oceans are formed where plates pull apart or diverge.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The continents are embedded in the plates and drift passively with them, which over millions of years results in significant changes in Earth\u2019s geography.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Such interactions are thought to be <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>responsible for most of Earth\u2019s seismic and volcanic activity<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, although earthquakes and volcanoes can occur in plate interiors.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Evidence of Plate Tectonic Theory:<\/strong><\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Continent Puzzle:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">The<\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong> continents fit together almost like puzzle pieces<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"> forming Pangaea (one super-continent).<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Fossil evidence:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Fossils on different continents are similar to fossils on continents that were once connected.\u00a0\u00a0<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">When the continents split, different life forms developed.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>Distributions of rocks:<\/strong><\/span><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type:circle\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Most distributions of rocks within Earth&#8217;s crust, including <\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong>minerals, fossil fuels, and energy resources<\/strong><\/span><\/span><\/span><\/span><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">, are a direct result of the history of plate motions and collisions and the corresponding changes in the configurations of the continents and ocean basins.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p style=\"text-align:center\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/MwwxqtPmb3z36WzEwZ8g_n-TFZYxSMjsm7LlCJIn3rPfZgLG6O1yy5ScR_RPP8TruBcvw6GoKeTeclRPRlm7q5xNUyDk0OcNyRPhASmUwh8HopC4zc7m8tbcO7kRxh_3mCClS2bwQxRp-Qof4ZYOQkk\" style=\"height:345px; width:624px\" \/><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\"><strong><u>Way ahead<\/u><\/strong><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Rapid occurrences such as the sudden splitting faults may lend a sense of urgency to continental rifting, the process itself is extremely slow and can go unnoticed most of the time as it progressively splits Africa.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Several planetary transformations are occurring, primarily as a result of climate change. Devastating weather patterns owing to global warming are altering landscapes and raising sea levels.<\/span><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type:disc\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Although human displacement is not new, climate change exacerbates gradual and abrupt environmental crises by increasing their intensity, frequency and scope.<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#000000\"><span style=\"background-color:#ffffff\">Source: <\/span><\/span><\/span><\/span><a href=\"https:\/\/www.downtoearth.org.in\/news\/africa\/the-great-rift-africa-s-splitting-plates-could-give-birth-to-a-new-ocean-but-with-consequences-88274\" style=\"text-decoration:none\" target=\"_blank\" rel=\"noopener\"><span style=\"font-size:13pt\"><span style=\"font-family:'Book Antiqua',serif\"><span style=\"color:#1155cc\"><span style=\"background-color:#ffffff\"><u>DTE<\/u><\/span><\/span><\/span><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Context Scientists, in 2020, predicted a new ocean would be created as Africa gradually splits into two separate parts. In news East African Rift: The division of the continent is connected to the East African Rift, a crack that stretches 56 kilometres and appeared in the desert of Ethiopia in 2005. The crack has [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":610,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[25,45],"class_list":["post-609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs","tag-gs1","tag-important-geophysical-phenomena"],"acf":[],"jetpack_featured_media_url":"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2023\/07\/7784684Screenshot_6.png","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=609"}],"version-history":[{"count":0,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/609\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media\/610"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}