{"version":"1.0","provider_name":"K\u00e4kisalmi Museum","provider_url":"https:\/\/kakisalmimuseo.fi\/en","author_name":"admin3652","author_url":"https:\/\/kakisalmimuseo.fi\/en\/author\/admin3652\/","title":"Laatokan vaiheet j\u00e4\u00e4kauden j\u00e4lkeen - K\u00e4kisalmi museo","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"uhS3PnxNsw\"><a href=\"https:\/\/kakisalmimuseo.fi\/en\/laatokan-vaiheet-jaakauden-jalkeen\/\">Laatokan vaiheet j\u00e4\u00e4kauden j\u00e4lkeen<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/kakisalmimuseo.fi\/en\/laatokan-vaiheet-jaakauden-jalkeen\/embed\/#?secret=uhS3PnxNsw\" width=\"600\" height=\"338\" title=\"&#8220;Laatokan vaiheet j\u00e4\u00e4kauden j\u00e4lkeen&#8221; &#8212; K\u00e4kisalmi museo\" data-secret=\"uhS3PnxNsw\" 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:\/\/kakisalmimuseo.fi\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/kakisalmimuseo.fi\/wp-content\/uploads\/2026\/05\/ancylusjarvi.jpg","thumbnail_width":1920,"thumbnail_height":1080,"description":"Laatokan vesist\u00f6 on muodostunut viimeisimm\u00e4n j\u00e4\u00e4kauden j\u00e4lkeen jopa dramaattisten luonnonmullistusten seurauksena. Laatokan vedenkorkeus on vaihdellut moneen otteeseen jopa kymmenill\u00e4 metreill\u00e4, ja vaihtelut ovat muun muassa peitt\u00e4neet j\u00e4rven rannoille sijoittuneen asutuksen merkkej\u00e4 veden kuljettamien maa-ainesten alle. Skandinavian mannerj\u00e4\u00e4tik\u00f6n alkoi per\u00e4\u00e4nty\u00e4 ilmaston l\u00e4mpenemisen seurauksena noin 17\u00a0000\u201318 000 vuotta sitten. J\u00e4\u00e4tik\u00f6n reuna oli [&hellip;]"}