Tephrochronology: Difference between revisions

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[[image:Icelandic tephra.JPG|250px|thumb|right|Tephra horizons in south-central [[Iceland]]. The thick and light coloured layer at the height of the [[volcanologist's]]'s hands is [[rhyolitic]] [[tephra]] from [[Hekla]].]]
 
[[Image:tephrochronology iceland.JPG|thumb|right|250px|Geologist explaining the importance of tephochronology to students on field in [[Iceland]].]]