Sigurður Þórarinsson

Sigurdur Thorarinsson (Icelandic: Sigurður Þórarinsson) (January 8, 1912 – February 8, 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