{"id":17232,"date":"2023-11-21T05:25:29","date_gmt":"2023-11-20T23:55:29","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=17232"},"modified":"2025-04-05T02:59:48","modified_gmt":"2025-04-04T21:29:48","slug":"e-prime-layer","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/e-prime-layer\/","title":{"rendered":"What is the E prime layer?"},"content":{"rendered":"<h2>About E prime layer<\/h2>\n<ul>\n<li>It was believed that a material exchange between the core and mantle is small.<\/li>\n<li>But the experiments revealed that when water reaches the core-mantle boundary, it reacts with\u00a0silicon in the core, forming silica.<\/li>\n<\/ul>\n<h2>How did this layer develop?<\/h2>\n<ul>\n<li>This latest research suggests that\u00a0tectonic plates carrying\u00a0surface water have transported it deep into the Earth over billions of years.<\/li>\n<li>Upon reaching the core-mantle boundary about 1,800 miles below the surface, this water initiates\u00a0significant chemical changes, influencing the core&#8217;s structure.<\/li>\n<li>Scientists have observed that subducted water reacts chemically with core materials under high pressure.<\/li>\n<li>This reaction\u00a0leads to the formation of a hydrogen-rich, silicon-depleted layer at the outer core, resembling a film-like structure.<\/li>\n<li>Silica crystals generated by this process ascend and blend into the mantle, impacting the overall composition.<\/li>\n<li>These modifications in the liquid metallic layer\u00a0could potentially result in reduced density and altered seismic characteristics, aligning with anomalies detected by seismologists.<\/li>\n<\/ul>\n<h2>Significance<\/h2>\n<ul>\n<li>This discovery enhances researchers\u00a0comprehension of Earth&#8217;s internal mechanisms, indicating a broader and more intricate global water cycle than previously acknowledged.<\/li>\n<li>The transformed layer in the core holds significant implications for the interconnected geochemical processes linking surface water cycles with the deep metallic core.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1) What is a tectonic plate?<\/h3>\n<p>A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.<\/p>\n<p><strong>Source:<\/strong> <a href=\"https:\/\/www.hindustantimes.com\/science\/earth-cores-mysterious-new-layer-formed-due-to-surface-water-diving-deep-study-101700488178379.html\" target=\"_blank\" rel=\"nofollow noopener\">Earth core&#8217;s mysterious new layer formed due to surface water diving deep: Study<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>E prime layer was believed that a material exchange between the core and mantle.<\/p>\n","protected":false},"author":5,"featured_media":17233,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-17232","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/17232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=17232"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/17232\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/17233"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=17232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=17232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=17232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}