{"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":"Les tephra, par Jacques-Marie Bardintzeff","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"L17AAteIb1\"><a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/09\/05\/les-tephra\/\">Les tephra<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/09\/05\/les-tephra\/embed\/#?secret=L17AAteIb1\" width=\"600\" height=\"338\" title=\"\u00ab\u00a0Les tephra\u00a0\u00bb &#8212; VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\" data-secret=\"L17AAteIb1\" 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":"On appelle \u00ab\u00a0tephra\u00a0\u00bb, l\u2019ensemble des d\u00e9p\u00f4ts volcaniques \u00e0 l\u2019exception des laves. Ce terme signifie \u00ab\u00a0cendre\u00a0\u00bb en grec mais il est \u00e9largi aux lapilli, aux bombes\u2026 On l\u2019\u00e9crit souvent sans accent et sans \u00ab\u00a0s\u00a0\u00bb car c\u2019est d\u00e9j\u00e0 un pluriel. Jacques-Marie Bardintzeff, volcanologue, rep\u00e8re un niveau de tephra (des retomb\u00e9es ponceuses) au Komagatake, Hokkaido, Japon (\u00a9 J.M. &hellip; Continuer la lecture de  &rarr;","thumbnail_url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2017\/09\/Bardintzeff.SAM_0948.Komagatake_JM.low_.jpg","thumbnail_width":1417,"thumbnail_height":1067}