{"version":"1.0","provider_name":"Safle Treftadaeth y Byd Dyfrbont Pontcysyllte a\u2019r Gamlas","provider_url":"https:\/\/www.pontcysyllte-aqueduct.co.uk\/cy\/","title":"Gwaith brics - Safle Treftadaeth y Byd Dyfrbont Pontcysyllte a\u2019r Gamlas","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"bolv9loP5S\"><a href=\"https:\/\/www.pontcysyllte-aqueduct.co.uk\/cy\/object\/gwaith-brics\/\">Gwaith brics<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.pontcysyllte-aqueduct.co.uk\/cy\/object\/gwaith-brics\/embed\/#?secret=bolv9loP5S\" width=\"600\" height=\"338\" title=\"&#8220;Gwaith brics&#8221; &#8212; Safle Treftadaeth y Byd Dyfrbont Pontcysyllte a\u2019r Gamlas\" data-secret=\"bolv9loP5S\" 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\/\/# sourceURL=https:\/\/www.pontcysyllte-aqueduct.co.uk\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.pontcysyllte-aqueduct.co.uk\/wp-content\/uploads\/2021\/09\/brick_pic_01.jpg","thumbnail_width":2000,"thumbnail_height":2247,"description":"Mae\u2019r gamlas yn cyflenwi blociau adeiladu Prydain Fictoraidd. Enw\u2019r clai sy\u2019n cael ei ganfod yn ardal Rhiwabon, i'r gogledd a'r dwyrain o'r Gamlas yn Nhrefor, yw Etruria Marl. Fel mwyn haearn a thywodfaen yn yr ardal, mae cynnwys haearn uchel ynddo. Pan gaiff ei danio, mae\u2019n troi yn liw coch cryf, yn debyg i nifer o\u2019r adeiladau yn y pentrefi ger y gamlas."}