Title: Geochemistry, petrography, and volcanology of rhyolites of the Portage Lake volcanics, Keweenaw Peninsula, Michigan
First published: 1992
Subjects: Geochemistry, Geology, Geology, Stratigraphic, Mineralogy, Petrology, Rhyolite, Stratigraphic Geology, Volcanic ash, tuff, Volcanism
Places: Keweenaw Peninsula, Michigan, Portage Lake Volcanics (Mich.)
Time periods: Proterozoic
LC classification: QE75 .B9 no. 1970 A-B, QE653.5 .B9 no. 1970 A-B