Olafur Eggertsson (wrote on Facebook)
Palaeo forest in Iceland, Betula pubescens. Dendro studies unveiled that the forest was killed by the same event, most likely by Jökulhlaup triggered by a volcanic subglacial eruption from the Katla volcano. Carbon 14 dating gave c. 780-820 AD c. one century before Iceland was colonised. The video is in Icelandic but nice pictures. The Katla volcano is one of Iceland's most active volcanoes and is a frequent producer of jokulhlaups. An eruption at Katla is likely to be explosive and produce damaging floods. A major eruption could have global climatic effects. Sources: USGS, BBC, Smithsonian Global Volcanism Program.
Kötlugos grandaði skóginum
Fyrst birt: 23.04.2012 12:24, Síðast uppfært: 23.04.2012 12:24
Skógarleifar í Drumbabót
Í kringum árið 800 óx myndarlegur birkiskógur í Fljótshlíð, jafnvel á svæðum þar sem nú er ekkert nema svartur sandur.
Í Drumbabót, á eyrum Þverár, standa drumbar uppúr sandinum og vitna um fyrri tíð. Með rannsóknum á þeim hefur verið hægt að sýna fram á að þessi forni skógur hefur allur drepist í einum atburði. Vísindamenn telja að mikið hamfaraflóð úr Mýrdalsjökli hafi grandað skóginum.
Kötlugos injured forest
First published: 04/23/2012 12:24, Last updated: 23/04/2012 12:24
Forest Residues in Drumbabót
In the year 800 grew into a handsome birch Fljótshlíð, even in areas which are now nothing but black sand.
In Drumbabót, ears tributaries, standing drumbar up out the sand and bear witness to the past. Studies of these have been able to demonstrate that this ancient forest has all died in a single event. Scientists believe that a catastrophic flood of Myrdalsjokull have grandað forest.