{"id":12870,"date":"2023-07-07T03:30:14","date_gmt":"2023-07-06T22:00:14","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=12870"},"modified":"2025-04-01T22:25:27","modified_gmt":"2025-04-01T16:55:27","slug":"what-is-a-gravity-hole","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-a-gravity-hole\/","title":{"rendered":"What is a Gravity hole?"},"content":{"rendered":"<h2><strong>About Gravity hole:<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<ul>\n<li>The gravity hole is a region of the ocean where <strong>the effects of gravity are less than usual.<\/strong><\/li>\n<li>It occurs at the bottom of the ocean where there are <strong>gravitational anomalies.<\/strong><\/li>\n<li><strong>Why it occurs?<\/strong> These anomalies are caused by variations in the <strong>gravitational pull of the Earth<\/strong> due to differences in the density of the materials that make up the Earth\u2019s crust.<\/li>\n<li>The Indian Ocean is home to one of the most profound gravitational anomalies on Earth known as <strong>the Indian Ocean Geoid Low (IOGL).<\/strong><\/li>\n<li>It was <strong>discovered in 1948<\/strong> during a ship-based gravity survey by Dutch geophysicist Felix Andries Vening Meinesz.<\/li>\n<li>It is found in a large section of over three million sq. km in the Indian Ocean seafloor, located around <strong>1,200 km southwest of India\u2019s southern tip.<\/strong><\/li>\n<li>It is estimated to have formed <strong>approximately 20 million years ago.<\/strong><\/li>\n<li>Researchers said that the IOGL comprises <strong>slabs from the Tethys Ocean<\/strong>, a long-lost sea that plunged into the depths of the planet millions of years ago.\u00a0<\/li>\n<li>The Tethys Ocean, which once separated the supercontinents of Gondwana and Laurasia is believed to have perturbed the African Large Low Shear Velocity province<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is Tethys Sea?<\/h3>\n<p>The Tethys Sea was a vast ancient ocean that existed between the continents of Gondwana and Laurasia during the Mesozoic era, specifically from the late Paleozoic to the early Cenozoic era. It played a crucial role in the geological and tectonic history of Earth.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/indianexpress.com\/article\/technology\/science\/gravity-hole-indian-ocean-8761264\/\" target=\"_blank\" rel=\"nofollow noopener\">What is causing the mysterious \u2018gravity hole\u2019 in the Indian Ocean?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gravity hole is a region of the ocean where the effects of gravity are less than usual.<\/p>\n","protected":false},"author":5,"featured_media":12871,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-12870","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\/12870","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=12870"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/12870\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/12871"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=12870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=12870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=12870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}