During early exploratory reconnaissance of southwestern Alaska in the 1940s and 1950s, the term 'Gemuk Group' was used to name a varied assemblage of sedimentary and volcanic rocks in southwestern Alaska. Throughout the 1950s and early 1960s, the name was broadly applied in the region; yet by the end of the 1960s, it was no longer in use, and later maps assigned the rocks originally in this unit to various informal units and, later, to various terranes. The name 'Gemuk Group' is herein abandoned, and the rocks previously assigned to the Gemuk Group, a diverse and structurally complex assemblage, are renamed the 'Togiak-Tikchik Complex.'
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USGS Numbered Series
The Togiak-Tikchik complex of Southwestern Alaska, a replacement for the Gemuk Group: stratigraphic nomenclature that has outlived its time