{"id":14349,"date":"2023-09-07T09:50:51","date_gmt":"2023-09-07T04:20:51","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=14349"},"modified":"2025-04-02T20:00:22","modified_gmt":"2025-04-02T14:30:22","slug":"erg-chech-002","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/erg-chech-002\/","title":{"rendered":"Erg Chech 002"},"content":{"rendered":"<h2><strong>About Erg Chech 002<\/strong><\/h2>\n<ul>\n<li><strong>What it is?\u00a0<\/strong>These are the rocks containing distinctive greenish crystals, it turned out to be from outer space, left over\u00a0<strong>from the dawn of the Solar System.<\/strong><\/li>\n<li>They were all\u00a0<strong>pieces of a meteorite<\/strong> known as Erg Chech 002, which is the oldest volcanic rock ever found.<\/li>\n<li>It is known as an\u00a0<strong>\u201cungrouped achondrite<\/strong>\u201d means their\u00a0<strong>parent bodies and family relationships are unknown.<\/strong><\/li>\n<li>Achondrites are rocks formed from melted planetesimals, which is what we call solid lumps in the cloud of gas and debris that formed the Solar System.<\/li>\n<li>Erg Chech 002 contains a high\u00a0<strong>abundance of lead-206 and lead-207<\/strong>, as well as relatively large amounts of\u00a0<strong>undecayed uranium-238<\/strong> and uranium-235.<\/li>\n<li>Aluminium-26 was distributed quite unevenly throughout the cloud of dust and gas which formed the solar system.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Key facts about Erg Chech<\/h3>\n<ul>\n<li>It is a sandy region of the Sahara in\u00a0<strong>western Algeria and northern Mali.<\/strong><\/li>\n<li>It consists largely of shifting dunes.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is\u00a0Uranium-238?<\/h3>\n<p>Uranium-238 (U-238) is a radioactive isotope of uranium, a chemical element with the symbol U and atomic number 92. It is one of the two primary isotopes of uranium found in nature, the other being uranium-235 (U-235).<\/p>\n<p><strong>Source:<\/strong> <a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/sahara-space-rock-45-billion-years-old-upends-assumptions-about-the-early-solar-system\/article67273127.ece\" target=\"_blank\" rel=\"nofollow noopener\"><u>Sahara space rock, 4.5 billion years old, upends assumptions about the early Solar System.<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Erg Chech 002 were all pieces of a meteorite known as Erg Chech 002, which is the oldest volcanic rock ever found.<\/p>\n","protected":false},"author":5,"featured_media":14350,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-14349","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\/14349","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=14349"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/14349\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/14350"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=14349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=14349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=14349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}