{"id":24117,"date":"2024-06-10T06:31:00","date_gmt":"2024-06-10T01:01:00","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=24117"},"modified":"2025-04-07T07:14:32","modified_gmt":"2025-04-07T01:44:32","slug":"abyssal-plains","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/abyssal-plains\/","title":{"rendered":"What are Abyssal Plains?"},"content":{"rendered":"<h2>About Abyssal Plains:<\/h2>\n<ul>\n<li>The term \u2018abyssal plain\u2019 refers to a <strong>flat region of the ocean floor<\/strong>, usually at the <strong>base of a continental rise.<\/strong><\/li>\n<li><strong>Depth variation<\/strong> is usually only as much as <strong>10 to 100 centimeters per kilometer<\/strong> of horizontal distance.<\/li>\n<li>They can <strong>range as far as thousands of kilometers<\/strong>, <strong>forming huge plateaus <\/strong>beneath the sea.<\/li>\n<li>Abyssal plains are found on the ocean floor, usually <strong>off the coast of major continental coastlines.<\/strong>\n<ul>\n<li>However, there are significantly <strong>more abyssal plains in the Atlantic Ocean<\/strong> than in any other.<\/li>\n<li>Some can be found within the Indian Ocean, but <strong>very few exist in<\/strong> areas within the <strong>Pacific Ocean.\u00a0<\/strong><\/li>\n<li>Approximately <strong>40% of Earth\u2019s Ocean floor is covered by abyssal plains<\/strong>.<\/li>\n<li>The <strong>largest Abyssal plain<\/strong> on Earth is called the <strong>Sohm plain<\/strong>. This plain can be found in the <strong>North Atlantic Ocean<\/strong>. It is 900,000 square kilometres.<\/li>\n<\/ul>\n<\/li>\n<li>Abyssal plains <strong>occur at depths greater than 6,500 feet (2,000 meters<\/strong>) below sea level and are <strong>underlain by oceanic crust composed primarily of basalt<\/strong>, a dark-colored volcanic rock rich in iron- and magnesium-silicate minerals.\u00a0\n<ul>\n<li>The <strong>basalt is covered by<\/strong> layers <strong>of sediment deposited by deep ocean turbidity currents<\/strong>, the <strong>shells of marine plants and animal<\/strong>s that have fallen down from the ocean\u2019s upper levels, or a combination of both.\u00a0<\/li>\n<li><strong>Other minor components<\/strong> of abyssal plain sediment <strong>include wind-blown dust<\/strong>, <strong>volcanic ash<\/strong>, <strong>chemical precipitates<\/strong>, and occasional <strong>meteorite fragments.<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>Scattered across abyssal plains<\/strong> are <strong>abyssal hillsand<\/strong> underwater volcanic peaks called <strong>seamounts<\/strong>.<\/li>\n<li><strong>On the other side<\/strong> of the plain is usually an <strong>oceanic trench<\/strong>, where the seafloor dramatically plummets.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1: What is continental rise?<\/h3>\n<p>Continental rise is a major depositional regime in oceans made up of thick sequences of continental material that accumulate between the continental slope and the abyssal plain. Continental rises form as a result of three sedimentary processes: mass wasting, the deposition from contour currents, and the vertical settling of clastic and biogenic particles.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/scitechdaily.com\/mysterious-unknown-deep-sea-creatures-discovered-on-abyssal-expedition\/\" target=\"_blank\" rel=\"nofollow noopener\">Mysterious Unknown Deep-Sea Creatures Discovered on Abyssal Expedition<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The term \u2018abyssal plain\u2019 refers to a flat region of the ocean floor, usually at the base of a continental rise.<\/p>\n","protected":false},"author":5,"featured_media":24118,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-24117","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\/24117","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=24117"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/24117\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/24118"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=24117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=24117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=24117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}