{"id":700,"date":"2019-09-11T17:48:58","date_gmt":"2019-09-11T17:48:58","guid":{"rendered":"https:\/\/www.youngistanjunction.com\/?p=700"},"modified":"2019-09-11T17:48:58","modified_gmt":"2019-09-11T17:48:58","slug":"the-archaean-formations","status":"publish","type":"post","link":"https:\/\/www.youngistanjunction.com\/the-archaean-formations\/","title":{"rendered":"The Archaean Formations"},"content":{"rendered":"<p><strong>The Archaean Formations or Pre Cambrian Era<\/strong> : The first ever topic that appear when we start reading geography for upsc and start reading the Geography of India by Majid Hussain or any other high level competitive examinations is the structure of India and we will going to discuss this topic summary pointwise to make your point clear for preparations.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<p class=\"ez-toc-title\">On This Page<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6711ee363f520\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6711ee363f520\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.youngistanjunction.com\/the-archaean-formations\/#Point_Wise_Summary_of_The_Archaean_Formations\" title=\"Point Wise Summary of The Archaean Formations :\">Point Wise Summary of The Archaean Formations :<\/a><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.youngistanjunction.com\/the-archaean-formations\/#Characteristics_Of_Rocks_Minerals_found_in_them\" title=\"Characteristics Of Rocks &amp; Minerals found in them :\">Characteristics Of Rocks &amp; Minerals found in them :<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.youngistanjunction.com\/the-archaean-formations\/#Types_Of_Rocks\" title=\"Types Of Rocks :\">Types Of Rocks :<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h4><span class=\"ez-toc-section\" id=\"Point_Wise_Summary_of_The_Archaean_Formations\"><\/span><strong>Point Wise Summary of The Archaean Formations :<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>The term archaean was first introduced by J.D Dana in 1872<\/li>\n<li>Archaean means the oldest rocks of earth’s surface.<\/li>\n<li>Pre Cambrian Constitute about 86.7% of World history.<\/li>\n<li>First photosynthesis, chemosynthesis and life supporting earth’s atmosphere formed during this year.<\/li>\n<li>Archaean Rocks are foundation for all great plateaus and mountains ranges.<\/li>\n<\/ul>\n<h6><span class=\"ez-toc-section\" id=\"Characteristics_Of_Rocks_Minerals_found_in_them\"><\/span><strong>Characteristics Of Rocks &amp; Minerals found in them :<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<ul>\n<li>Rocks are extremely crystalline, contarted, and faulted without any sediments.<\/li>\n<li>Rocks are reach in Iron ore, copper, manganese, Mica, Zinc, and Gold.<\/li>\n<\/ul>\n<h6><span class=\"ez-toc-section\" id=\"Types_Of_Rocks\"><\/span><strong>Types Of Rocks :<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<ol>\n<li><strong>The Bengal Gneiss :-<\/strong><\/li>\n<\/ol>\n<p>These rocks first found in Mindanpur district of West Bengal , These types of rocks have lots of layers and they mainly found in Eastern Ghats, Odisha, Manubhum &amp; Hazaribagh district of Jharkhand, Nellore Andhra Pradesh, Tamil Nadu, Son Valley and Mikir Hills.<\/p>\n<p>2<strong>. The Bundelkhand Gneiss :-<\/strong><\/p>\n<p>These rocks are forms of massive granitoid, it mainly found in bundelkhand, bhagelkhand, Maharashtra, Tamilnadu &amp; Andhra Pradesh.<\/p>\n<p>3. <strong>The Nilgiri Gneiss :-<\/strong><\/p>\n<p>Rocks of nilgiri gneiss are dark coloured &amp; blueish grey, it mainly found in Nilgiri, South Arcot, Palni hills, Shevaroy hills, Nellore in andhra pradesh, Balasore in orissa,Karnataka kerala,malabar, jharkhand &amp; chhattisgarh.<\/p>\n<p>&nbsp;<\/p>\n<p>This was all about the <strong>The Archaean Formations or Pre Cambrian Era ,\u00a0<\/strong>keep looking our <a href=\"https:\/\/www.youngistanjunction.com\/category\/education\/upsc\/geography\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GEOGRAPHY<\/strong> <\/a>section for all topics summary, if you have any suggestions comment in box.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Archaean Formations or Pre Cambrian Era : The first ever topic that appear when we start reading geography for upsc and start reading the Geography of India by Majid Hussain or any other high level competitive examinations is the structure of India and we will going to discuss this topic summary pointwise to make [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[],"class_list":["post-700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-structure-of-india"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - 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