{"version":"1.0","provider_name":"VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue","provider_url":"https:\/\/blogs.futura-sciences.com\/bardintzeff","author_name":"jmbardintzeff","author_url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/author\/jmbardintzeff\/","title":"Le crat\u00e8re d\u2019impact de Vredefort, par Jacques-Marie Bardintzeff","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"ApONkGRGSB\"><a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/\">Le crat\u00e8re d\u2019impact de Vredefort<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/embed\/#?secret=ApONkGRGSB\" width=\"600\" height=\"338\" title=\"\u00ab\u00a0Le crat\u00e8re d\u2019impact de Vredefort\u00a0\u00bb &#8212; VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\" data-secret=\"ApONkGRGSB\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>\n","description":"Le crat\u00e8re d\u2019impact de Vredefort en Afrique du Sud, de 300 km diam\u00e8tre, est le plus grand connu sur Terre. On peut admirer sa br\u00e8che d\u2019impact (impactite) en une superbe dalle polie, \u00e0 l\u2019entr\u00e9e de l\u2019Uranoscope de Gretz-Armainvilliers (voir mon blog du 7\/7\/2017). Jacques-Marie Bardintzeff, volcanologue, \u00e0 c\u00f4t\u00e9 d\u2019une dalle polie de l\u2019impactite de Vredefort, &hellip; Continuer la lecture de  &rarr;","thumbnail_url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2017\/07\/Bardintzeff.SAM_0042.Vredefort.jpg","thumbnail_width":1355,"thumbnail_height":1417}