{"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 tephra de Romont en Belgique, par Jacques-Marie Bardintzeff","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"uzrzU8Tfwu\"><a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2026\/06\/16\/le-tephra-de-romont-en-belgique\/\">Le tephra de Romont en Belgique<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2026\/06\/16\/le-tephra-de-romont-en-belgique\/embed\/#?secret=uzrzU8Tfwu\" width=\"600\" height=\"338\" title=\"\u00ab\u00a0Le tephra de Romont en Belgique\u00a0\u00bb &#8212; VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\" data-secret=\"uzrzU8Tfwu\" 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":"Un niveau de retomb\u00e9es volcaniques, appel\u00e9 \u00ab\u00a0tephra\u00a0\u00bb ou \u00ab\u00a0t\u00e9phra\u00a0\u00bb de Rocourt, est rep\u00e9r\u00e9 dans une bonne partie de la Belgique (Juvign\u00e9, 1993). Il est dat\u00e9 de 78\u00a0000 \u00e0 80\u00a0000 ans et proviendrait de la province volcanique de l\u2019Eifel en Allemagne. Nous venons de pr\u00e9ciser ce niveau (\u00ab\u00a0stratotype\u00a0\u00bb) \u00e0 Romont en Belgique. Un article scientifique tout &hellip; Continuer la lecture de  &rarr;","thumbnail_url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2026\/06\/Romont.Fig1_.low_.jpg","thumbnail_width":1417,"thumbnail_height":1031}