Sigurður Þórarinsson

Sigurdur Thorarinsson (Icelandic: Sigurður Þórarinsson) (8 January 1912 – 8 February 1983) was an Icelandic geologist, volcanologist, glaciologist, professor and lyricist. He is considered a pioneer in the field of tephrochronology, and he made significant contributions in many areas of geology, especially volcanology and glaciology, both in Iceland and abroad. Provided by Wikipedia