{"version":"1.0","provider_name":"Belfast Geologist&#039; Society","provider_url":"https:\/\/belfastgeologists.org","author_name":"Gary Hamilton","author_url":"https:\/\/belfastgeologists.org\/index.php\/author\/garyadmin\/","title":"White Head - history of our economic geology - Belfast Geologist&#039; Society","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"n2DTUr2OpP\"><a href=\"https:\/\/belfastgeologists.org\/index.php\/2025\/11\/18\/white-head-history-of-our-economic-geology\/\">White Head &#8211; history of our economic geology<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/belfastgeologists.org\/index.php\/2025\/11\/18\/white-head-history-of-our-economic-geology\/embed\/#?secret=n2DTUr2OpP\" width=\"600\" height=\"338\" title=\"&#8220;White Head &#8211; history of our economic geology&#8221; &#8212; Belfast Geologist&#039; Society\" data-secret=\"n2DTUr2OpP\" 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:\/\/belfastgeologists.org\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/belfastgeologists.org\/wp-content\/uploads\/2025\/09\/3-The-White-Harbour-Knocknagulliagh-White-Head.jpg","thumbnail_width":983,"thumbnail_height":720,"description":"Tuesday 16th December 2025 Talk by Ian Enlander Time 7pm Venue Zoom        Before the town of Whitehead came into existence, there were a number of flourishing industries in the vicinity of White Head, the limestone headland that once stood south of the present town. These industries used the local geology as their raw material.   The local geology - red, white and black - mainly consists of Triassic mudstones (red), being the oldest rocks present, succeeded by the Cretaceous series, notably the Ulster White Limestone (white), capped by the Lower Basalts (black). Using field evidence together with a range of historical sources, the story of how these raw materials formed the basis of an important series of industries will be discussed. The area flourished during the heyday of \u2018Victorian industrialisation\u2019 with the coming of the railway, a better road network and development of harbour facilities.   Although the quarries, brickworks and harbour are now quiet and the evidence mostly long gone, the story of these industries and associated activities can be understood through historical maps, postcards, photographs and artwork. This small area hosts a lot of industrial heritage.   Ian Enlander"}